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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549





FORM 10-Q





(Mark One)

|x | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ---------------------------------------------------------------------------------------

FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2010

OR



| ̈ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ----------------------------------------------------------------------------------------

Commission File Number 000-51786





NightHawk
Radiology Holdings, Inc.

(Exact name of registrant as specified in its charter)







|                                                               |  |                                  
|-------------------------------------------------------------- |  | ---------------------------------
|Delaware                                                       |  | 87-0722777                       
|(State or other jurisdiction of
incorporation or organization) |  | (IRS Employer
Identification No.)
|                                                               | 
|4900 N. Scottsdale Road,
6thFloor, Scottsdale, Arizona         |  | 85251                            
|(Address of principal executive offices)                       |  | (Zip code)                       

(480)
822-4000

(Registrants telephone number, including area code)





Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the
Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90
days.    Yes  x    No   ̈

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every
Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such
files).    Yes   ̈    No   ̈

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller
reporting company. See definitions of large accelerated filer, accelerated filer and smaller reporting company in Rule 12b-2 of the Exchange Act.



|                        |  |   |  |                           |  |  
|----------------------- |  | - |  | ------------------------- |  | -
|Large accelerated filer |  |  ̈ |  | Accelerated filer         |  | x
|                        |  |   | 
|Non-accelerated filer   |  |  ̈ |  | Smaller reporting company |  |  ̈

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange
Act).    Yes   ̈    No  x

As of April 30, 2010 23,616,401 shares of the Registrants common stock were outstanding.









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TABLE OF CONTENTS



|           |  |                                                                                       |  |   
|---------- |  | ------------------------------------------------------------------------------------- |  | --
|Part I     |  |                                                                                       |  |   
|Item 1.    |  | Financial Statements                                                                  |  | 3 
|           |  | Condensed Consolidated Statements of Operations                                       |  | 3 
|           |  | Condensed Consolidated Balance Sheets                                                 |  | 4 
|           |  | Condensed Consolidated Statements of Cash Flows                                       |  | 5 
|           |  | Condensed Consolidated Statements of Comprehensive Income (Loss)                      |  | 6 
|           |  | Notes to Condensed Consolidated Financial Statements                                  |  | 7 
|Item 2.    |  | Managements Discussion and Analysis of Financial Condition and Results of Operations |  | 17
|Item 3.    |  | Quantitative and Qualitative Disclosures About Market Risk                            |  | 26
|Item 4.    |  | Controls and Procedures                                                               |  | 26
|           |  |                                                                                      
|Part II    |  |                                                                                       |  |   
|Item 1.    |  | Legal Proceedings                                                                     |  | 27
|Item 1A.   |  | Risk Factors                                                                          |  | 28
|Item 6.    |  | Exhibits                                                                              |  | 39
|           |  |                                                                                      
|Signatures |  |                                                                                       |  | 40



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PART 1  FINANCIAL INFORMATION



|Item 1. | Financial Statements
|------- | --------------------

NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited)

(In thousands, except share data)



|                                                |  |                             |            |   |      |   |            |  
|----------------------------------------------- |  | --------------------------- | ---------- | - | ---- | - | ---------- | -
|                                                |  | Three Months EndedMarch 31, |           
|                                                |  | 2010                        |            |   | 2009 |  
|Service revenue                                 |  | $                           | 36,548     |   |      | $ | 38,798     |  
|Operating costs and expenses:                   |  |                             |            |   |      |   |            |  
|Professional services                           |  |                             | 17,464     |   |      |   | 16,656     |  
|Sales, general, and administrative              |  |                             | 15,761     |   |      |   | 14,734     |  
|Depreciation and amortization                   |  |                             | 2,809      |   |      |   | 2,798      |  
|Intangible asset and goodwill impairment        |  |                             | 27,326     |   |      |   | 68,718     |  
|                                                |  |                             |            |   |      |   |            |  
|Total operating costs and expenses              |  |                             | 63,360     |   |      |   | 102,906    |  
|                                                |  |                             |            |   |      |   |            |  
|Operating income (loss)                         |  |                             | (26,812    | ) |      |   | (64,108    | )
|Other income (expense):                         |  |                             |            |   |      |   |            |  
|Interest expense                                |  |                             | (3,324     | ) |      |   | (2,302     | )
|Interest income                                 |  |                             | 52         |   |      |   | 55         |  
|Other, net                                      |  |                             | 10         |   |      |   | 10         |  
|                                                |  |                             |            |   |      |   |            |  
|Total other income (expense)                    |  |                             | (3,262     | ) |      |   | (2,237     | )
|                                                |  |                             |            |   |      |   |            |  
|Income (loss) before income taxes               |  |                             | (30,074    | ) |      |   | (66,345    | )
|Income tax expense (benefit)                    |  |                             | (10,879    | ) |      |   | (13,732    | )
|                                                |  |                             |            |   |      |   |            |  
|Net income (loss)                               |  | $                           | (19,195    | ) |      | $ | (52,613    | )
|                                                |  |                             |            |   |      |   |            |  
|Earnings (loss) per common share:               |  |                             |            |   |      |   |            |  
|Basic                                           |  | $                           | (0.81      | ) |      | $ | (1.97      | )
|Diluted                                         |  | $                           | (0.81      | ) |      | $ | (1.97      | )
|Weighted averages of common shares outstanding: |  |                             |            |   |      |   |            |  
|Basic                                           |  |                             | 23,576,537 |   |      |   | 26,649,147 |  
|Diluted                                         |  |                             | 23,576,537 |   |      |   | 26,649,147 |  

See Notes to Condensed
Consolidated Financial Statements.



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NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited)

(In thousands, except share data)



|                                                                                                                                   |  |               |          |   |                  |   |          |  
|---------------------------------------------------------------------------------------------------------------------------------- |  | ------------- | -------- | - | ---------------- | - | -------- | -
|                                                                                                                                   |  | March 31,2010 |          |   | December 31,2009 |  
|ASSETS                                                                                                                             |  |               |          |   |                  |   |          |  
|Current assets:                                                                                                                    |  |               |          |   |                  |   |          |  
|Cash and cash equivalents                                                                                                          |  | $             | 33,929   |   |                  | $ | 26,293   |  
|Marketable securities                                                                                                              |  |               |         |   |                  |   | 6,000    |  
|Trade accounts receivable, net                                                                                                     |  |               | 20,808   |   |                  |   | 21,359   |  
|Deferred income taxes                                                                                                              |  |               | 2,759    |   |                  |   | 910      |  
|Prepaid expenses and other current assets                                                                                          |  |               | 6,398    |   |                  |   | 4,702    |  
|                                                                                                                                   |  |               |          |   |                  |   |          |  
|Total current assets                                                                                                               |  |               | 63,894   |   |                  |   | 59,264   |  
|Property and equipment, net                                                                                                        |  |               | 13,080   |   |                  |   | 13,507   |  
|Intangible assets, net                                                                                                             |  |               | 43,529   |   |                  |   | 72,550   |  
|Deferred income taxes                                                                                                              |  |               | 23,419   |   |                  |   | 15,707   |  
|Other assets, net                                                                                                                  |  |               | 3,334    |   |                  |   | 4,646    |  
|                                                                                                                                   |  |               |          |   |                  |   |          |  
|Total                                                                                                                              |  | $             | 147,256  |   |                  | $ | 165,674  |  
|                                                                                                                                   |  |               |          |   |                  |   |          |  
|                                                                                                                                   |  |              
|LIABILITIES                                                                                                                        |  |               |          |   |                  |   |          |  
|Current liabilities:                                                                                                               |  |               |          |   |                  |   |          |  
|Accounts payable                                                                                                                   |  | $             | 5,910    |   |                  | $ | 6,130    |  
|Accrued expenses and other liabilities                                                                                             |  |               | 3,736    |   |                  |   | 3,473    |  
|Accrued payroll and related benefits                                                                                               |  |               | 3,487    |   |                  |   | 3,769    |  
|Long-term debt, due within one year                                                                                                |  |               | 802      |   |                  |   | 802      |  
|                                                                                                                                   |  |               |          |   |                  |   |          |  
|Total current liabilities                                                                                                          |  |               | 13,935   |   |                  |   | 14,174   |  
|Insurance reserve                                                                                                                  |  |               | 4,018    |   |                  |   | 4,018    |  
|Long-term debt                                                                                                                     |  |               | 77,203   |   |                  |   | 77,404   |  
|Other liabilities                                                                                                                  |  |               | 1,683    |   |                  |   | 1,348    |  
|                                                                                                                                   |  |               |          |   |                  |   |          |  
|Total liabilities                                                                                                                  |  |               | 96,839   |   |                  |   | 96,944   |  
|                                                                                                                                   |  |               |          |   |                  |   |          |  
|Commitments and contingencies                                                                                                      |  |               |          |   |                  |   |          |  
|                                                                                                                                   |  |              
|STOCKHOLDERS EQUITY                                                                                                               |  |               |          |   |                  |   |          |  
|Common stock150,000,000 shares authorized; $.001 par value; 23,590,251 and 23,558,890 shares issued and outstanding,
respectively |  |               | 24       |   |                  |   | 24       |  
|Additional paid-in capital                                                                                                         |  |               | 221,621  |   |                  |   | 221,106  |  
|Retained earnings (deficit)                                                                                                        |  |               | (170,854 | ) |                  |   | (151,660 | )
|Accumulated other comprehensive income (deficit)                                                                                   |  |               | (374     | ) |                  |   | (740     | )
|                                                                                                                                   |  |               |          |   |                  |   |          |  
|Total stockholders equity                                                                                                         |  |               | 50,417   |   |                  |   | 68,730   |  
|                                                                                                                                   |  |               |          |   |                  |   |          |  
|Total                                                                                                                              |  | $             | 147,256  |   |                  | $ | 165,674  |  
|                                                                                                                                   |  |               |          |   |                  |   |          |  

See Notes to Condensed Consolidated Financial Statements.



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NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited)

(In thousands)



|                                                                                         |  |                             |         |   |      |   |         |  
|---------------------------------------------------------------------------------------- |  | --------------------------- | ------- | - | ---- | - | ------- | -
|                                                                                         |  | Three Months EndedMarch 31, |        
|                                                                                         |  | 2010                        |         |   | 2009 |  
|Cash flows from operating activities:                                                    |  |                             |         |   |      |   |         |  
|Net income (loss)                                                                        |  | $                           | (19,195 | ) |      | $ | (52,613 | )
|Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |                             |         |   |      |   |         |  
|Depreciation and amortization                                                            |  |                             | 2,809   |   |      |   | 2,798   |  
|Intangible asset and goodwill impairment                                                 |  |                             | 27,326  |   |      |   | 68,718  |  
|Amortization of debt issuance costs and effect of interest rate swaps                    |  |                             | 2,258   |   |      |   | 1,046   |  
|Deferred income taxes                                                                    |  |                             | (9,790  | ) |      |   | (14,287 | )
|Non-cash stock compensation expense                                                      |  |                             | 508     |   |      |   | 1,045   |  
|Other, net                                                                               |  |                             | 224     |   |      |   | 416     |  
|Changes in operating assets and liabilities:                                             |  |                             |         |   |      |   |         |  
|Trade accounts receivable, net                                                           |  |                             | 340     |   |      |   | 1,347   |  
|Prepaid expenses and other assets                                                        |  |                             | (1,699  | ) |      |   | (1,097  | )
|Accounts payable                                                                         |  |                             | 5       |   |      |   | (649    | )
|Accrued expenses and other liabilities                                                   |  |                             | 258     |   |      |   | 203     |  
|Accrued payroll and related benefits                                                     |  |                             | (287    | ) |      |   | (733    | )
|                                                                                         |  |                             |         |   |      |   |         |  
|Net cash provided by operating activities                                                |  |                             | 2,757   |   |      |   | 6,194   |  
|                                                                                         |  |                             |         |   |      |   |         |  
|Cash flows from investing activities:                                                    |  |                             |         |   |      |   |         |  
|Purchase of marketable securities                                                        |  |                             |        |   |      |   | (4,991  | )
|Proceeds from maturities of marketable securities                                        |  |                             | 6,000   |   |      |   |        |  
|Purchase of property and equipment                                                       |  |                             | (929    | ) |      |   | (1,110  | )
|                                                                                         |  |                             |         |   |      |   |         |  
|Net cash provided by (used in) investing activities                                      |  |                             | 5,071   |   |      |   | (6,101  | )
|                                                                                         |  |                             |         |   |      |   |         |  
|Cash flows from financing activities:                                                    |  |                             |         |   |      |   |         |  
|Repayment of debt                                                                        |  |                             | (201    | ) |      |   | (239    | )
|Proceeds from exercise of stock options                                                  |  |                             | 7       |   |      |   | 30      |  
|Excess tax benefit from exercise of stock options                                        |  |                             | 2       |   |      |   | 5       |  
|Purchase and retirement of common stock                                                  |  |                             |        |   |      |   | (6,452  | )
|                                                                                         |  |                             |         |   |      |   |         |  
|Net cash used in financing activities                                                    |  |                             | (192    | ) |      |   | (6,656  | )
|                                                                                         |  |                             |         |   |      |   |         |  
|Net increase (decrease) in cash and cash equivalents                                     |  |                             | 7,636   |   |      |   | (6,563  | )
|Cash and cash equivalentsbeginning of period                                            |  |                             | 26,293  |   |      |   | 47,160  |  
|                                                                                         |  |                             |         |   |      |   |         |  
|Cash and cash equivalentsend of period                                                  |  | $                           | 33,929  |   |      | $ | 40,597  |  
|                                                                                         |  |                             |         |   |      |   |         |  
|Supplemental disclosures of cash flow information:                                       |  |                             |         |   |      |   |         |  
|Cash paid for interest                                                                   |  | $                           | 1,059   |   |      | $ | 1,160   |  
|Cash paid for income taxes                                                               |  |                             | 54      |   |      |   | 139     |  
|Non-cash investing and financing activities:                                             |  |                             |         |   |      |   |         |  
|Purchases of equipment included in accounts payable                                      |  |                             | 38      |   |      |   | 214     |  

See Notes to Condensed
Consolidated Financial Statements.



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NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (unaudited)

(In thousands)



|                                                                                                 |  |                             |         |   |      |   |         |  
|------------------------------------------------------------------------------------------------ |  | --------------------------- | ------- | - | ---- | - | ------- | -
|                                                                                                 |  | Three Months EndedMarch 31, |        
|                                                                                                 |  | 2010                        |         |   | 2009 |  
|Net income (loss)                                                                                |  | $                           | (19,195 | ) |      | $ | (52,613 | )
|Other comprehensive income (loss):                                                               |  |                             |         |   |      |   |         |  
|Change in fair value of interest rate swaps                                                      |  |                             |        |   |      |   | 495     |  
|Reclassification adjustments for net losses on interest rate swaps included in net income (loss) |  |                             | 612     |   |      |   | 884     |  
|Foreign currency translation adjustments                                                         |  |                             | (17     | ) |      |   | (45     | )
|Less deferred income taxes                                                                       |  |                             | (229    | ) |      |   | (502    | )
|                                                                                                 |  |                             |         |   |      |   |         |  
|Net other comprehensive income (loss)                                                            |  |                             | 366     |   |      |   | 832     |  
|                                                                                                 |  |                             |         |   |      |   |         |  
|Comprehensive income (loss)                                                                      |  | $                           | (18,829 | ) |      | $ | (51,781 | )
|                                                                                                 |  |                             |         |   |      |   |         |  

See Notes to Condensed Consolidated Financial Statements.



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NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

1.
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of PresentationThe accompanying unaudited condensed
consolidated financial statements include the results of operations, financial position and cash flows of NightHawk Radiology Holdings, Inc. and its subsidiaries (the Company). All material intercompany balances have been eliminated.

In the opinion of the Companys management, the accompanying unaudited condensed consolidated financial statements
include all adjustments necessary to present fairly, in all material respects, the Companys results for the periods presented. These condensed consolidated financial statements have been prepared by the Company pursuant to the rules and
regulations of the Securities and Exchange Commission (SEC). Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United
States have been condensed or omitted pursuant to such SEC rules and regulations. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and accompanying notes included in
Item 8 of the Companys 2009 Annual Report on Form 10-K filed with the SEC on February 25, 2010. The results of operations for the three months ended March 31, 2010 are not necessarily indicative of results to be expected
for the entire fiscal year.

The Companys unaudited condensed consolidated balance sheet as of December 31, 2009
has been derived from the audited consolidated balance sheet as of that date. Certain information and footnote disclosure normally included in the Companys annual consolidated financial statements have been condensed or omitted.

Use of EstimatesThe preparation of consolidated financial statements in conformity with accounting principles
generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, and disclosures of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the reporting period. Some of these estimates require difficult, subjective or complex judgments about matters that are inherently uncertain. Actual results could differ from those
estimates.

On an ongoing basis, the Company evaluates its estimates, including those related to the accounts receivable
allowance, fair value of acquired intangible assets, useful lives of intangible assets and property and equipment, income taxes, the loss contingency for general and medical liability claims, reserves for incurred but not reported (IBNR)
medical liability claims, for determining stock-based compensation, the fair value of interest rate swap contracts and the Companys business services customers expected net collections.

Trade Accounts ReceivableTrade accounts receivable represent receivables for services and are recorded at the
invoiced amount and are non-interest bearing. Company management reviews past due accounts receivable to identify specific customers with known disputes or collectability issues. As of March 31, 2010 and December 31, 2009, the Company had
reserved $0.7 million and $0.9 million, respectively, for doubtful accounts based on its estimate of the collectability of outstanding receivables as of those dates. When the Company determines that a receivable is not recoverable, the amount is
removed from the financial records along with the corresponding reserve balance. During the first three months of 2010, the Company removed $0.4 million of specifically identified uncollectible accounts receivable and the corresponding reserves
from its financial records.

Marketable SecuritiesThe Company determines the appropriate classification of
investments in marketable debt and equity securities at the time of purchase and reevaluates such designation at each balance sheet date. Marketable debt and equity securities have been classified and accounted for as available for sale. The Company
may or may not hold securities with stated maturities greater than 12 months until maturity. In response to changes in the availability of and the yield on alternative investments as well as liquidity requirements, the Company occasionally sells
these securities prior to their stated maturities. The Company primarily invests in high-credit-quality debt instruments with an active resale market and money market funds to ensure liquidity and the ability to readily convert these investments
into cash to fund current operations, or satisfy other cash requirements as needed. Accordingly, all marketable securities have been classified as current assets in the accompanying balance sheets. These securities are carried at fair value, with
the unrealized gains and losses, net of taxes, reported as a component of stockholders equity, except for unrealized losses determined to be other than temporary which would be recorded as other income or expense. Any realized gains or losses
on the sale of marketable securities are determined on a specific identification method, and such gains and losses are reflected as a component of other income or expense.



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NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS(Continued)

(unaudited)



Property and EquipmentProperty and equipment are stated at cost. Depreciation is provided using the straight-line
method over the estimated useful lives of each asset, which range as follows:



|                                                                  |  |                                                 
|----------------------------------------------------------------- |  | ------------------------------------------------
|Computers, diagnostic workstations and telecommunications systems |  | 35 years                                       
|Office furniture and equipment                                    |  | 710 years                                      
|Software                                                          |  | 37 years                                       
|Leasehold improvements                                            |  | Term of lease or assetlife, whichever is shorter

Expenditures for maintenance and repairs are charged to operating expense as incurred and expenditures for renewals and betterments are
capitalized. Upon sale or retirement of depreciable assets, the related cost and accumulated depreciation are removed from the records and any gain or loss is reflected in operating expenses.

The cost of computer software developed for internal use is capitalized and accounted for in accordance with the Intangibles-Goodwill
and OtherTopic of the Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC Topic 350), Subtopic 40 Internal-Use Software. Capitalized costs are amortized based on their expected useful lives.

Depreciation expense for the three month periods ended March 31, 2010 and 2009 was $1.1 million and $0.9
million, respectively.

ContingenciesThe Company records a loss contingency for legal claims at the time
the Company deems such liability to be probable. The determination of the probability of the liability is based upon a review of the claim by the Companys internal legal counsel, external legal counsel and, in the case of medical liability
claims, the Companys medical liability insurance carrier. Upon the determination that a liability is probable, the Company records a loss contingency for the estimated potential claim. Actual future losses from these legal claims may differ
from the Companys estimates to the extent that the Company suffers an adverse determination for a claim which the Company did not deem the liability probable, did not record a sufficient loss contingency, the loss was in excess of applicable
insurance limits, or in the event that the Company does not have insurance coverage or indemnification rights covering the specific claim.

Medical Liability InsuranceThe Company is exposed to various risks of loss related to litigation that may arise
related to malpractice and maintains insurance for medical liabilities in amounts considered adequate by Company management. The Companys claims-made policy provides coverage up to the policy limits for claims filed within the period of the
policy term, subject to deductible requirements and coverage limits. Coverage for affiliated radiologists is initiated when they begin providing services on behalf of the Company.

The Company records reserves for both asserted and IBNR amounts. Asserted claims are reserved based upon the Companys best estimate
of future probable costs in accordance with the ContingenciesTopic of the FASB Accounting Standards Codification (ASC Topic 450). The IBNR reserve is intended to cover potential medical claims that might arise related to past medical
services performed by the Companys affiliated radiologists which have not yet been asserted. IBNR amounts are estimated using historical claims information and actuarial-based analyses.

Long-Lived Assets Including Goodwill and Other Acquired Intangible AssetsUnder the provisions of the
Intangibles-Goodwill and Other Topic of the FASB Accounting Standards Codification (ASC Topic 350), certain intangible assets are amortized over their estimated useful lives. The Company currently has no goodwill on its balance sheet.
Unamortized intangible assets are evaluated for impairment at least annually or more frequently if events and circumstances indicate that the goodwill and intangible assets might be impaired.

In accordance with the Property, Plant, and EquipmentTopic of the FASB Accounting Standards Codification (ASC Topic 360),
the Company periodically reviews long-lived assets for impairment whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable or that the useful lives of those assets are no
longer appropriate. The Company performs impairment tests using discounted cash flows, valuation analyses or comparisons to recent sales or purchase transactions to determine estimated fair value. If impairment is indicated, the asset is written
down to its estimated fair value.

Concentration of Credit RiskFinancial instruments that potentially
expose the Company to concentration of credit risk consist primarily of cash, cash equivalents, marketable securities and accounts receivable. The Company maintains its cash, cash equivalents and marketable securities with high-credit-quality
institutions. As of March 31, 2010 and December 31, 2009, a total of $33.9 million and $26.2 million, respectively, of cash and cash equivalents exceeded federal government insured amounts.

For the three months ended March 31, 2010, the Company generated an aggregate of $5.1 million in revenue from its relationship and
related agreements with St. Paul Radiology, P.A., representing approximately 14% of the Companys revenue. As described more fully in Note 3Intangible Assets Subject to Amortization and Note 5Commitments and
Contingencies,, the Company is currently involved in a dispute with St. Paul Radiology, P.A. regarding its services agreement with them.



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NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS(Continued)

(unaudited)



Recently Issued Accounting StandardsIn January 2010, the FASB issued Accounting Standards Update (ASU)
No.2010-06. This ASU amended the Fair Value Measurements and Disclosures Topic of the FASB Accounting Standards Codification (ASC Topic 820), to add new requirements for disclosures about transfers into and out of Levels 1 and 2 and
separate disclosures about purchases, sales, issuances, and settlements relating to Level 3 measurements. It also clarifies existing fair value disclosures about the level of disaggregation and about inputs and valuation techniques used to measure
fair value. The ASU is effective January 1, 2010, except for the requirement to provide the separate disclosures relating to Level 3 measurements noted above. That amendment is effective January 1, 2011. The impact of adopting the portion
of the ASU related to Level 1 and 2 measurements was not significant. See Note 10Fair Value Measurementsfor the Companys recurring and non-recurring fair value disclosures, as required by ASC Topic 820.

In February 2010, the FASB issued ASU No. 2010-09. This ASU amended the Subsequent Events Topic of the FASB Accounting
Standards Codification (ASC Topic 855). The amendments in the ASU remove the requirement for a public filer to disclose a date through which subsequent events have been evaluated in both issued and revised financial statements. Revised financial
statements include financial statements revised as a result of either correction of an error or retrospective application of accounting principles generally accepted in the United States of America (GAAP). The FASB also clarified that if
the financial statements have been revised, then an entity that is not an SEC filer should disclose both the date that the financial statements were issued or available to be issued and the date the revised financial statements were issued or
available to be issued. The FASB believes these amendments remove potential conflicts with the SECs literature. All of the amendments in the ASU were effective upon issuance January 1, 2010, except for the use of the issued
date for conduit debt obligors. That amendment is effective for interim or annual periods ending after June 15, 2010. The impact of adoption was not significant.

2. MARKETABLE SECURITIES

Marketable securities include various available-for-sale securities. These securities are carried at fair value, with the unrealized gains
and losses, net of taxes, reported as a component of stockholders equity. Gross unrealized gains and losses on marketable securities were not significant at March 31, 2010 or December 31, 2009.

Below are the Companys marketable securities at fair value:



|                                              |  |                |   |                   |   |      
|--------------------------------------------- |  | -------------- | - | ----------------- | - | -----
|                                              |  | March 31, 2010 |   | December 31, 2009
|                                              |  | (In thousands)
|Due in one year or less:                      |  |                |   |                   |   |      
|U.S. Government and federal agency securities |  | $              |  |                   | $ | 6,000
|                                              |  |                |   |                   |   |      
|Total marketable securities                   |  | $              |  |                   | $ | 6,000
|                                              |  |                |   |                   |   |      

3. INTANGIBLE ASSETS SUBJECT TO AMORTIZATION

The Company amortizes its intangible assets using the straight-line method over their estimated useful
lives. As required by the Intangibles-Goodwill and OtherTopic of the FASB Accounting Standards Codification (ASC Topic 350), an interim test for impairment must be performed whenever impairment indicators are present. The Companys
intangible assets include those assets acquired as part of the Companys July 2007 acquisition of Midwest Physician Services, LLC and Emergency Radiology Services, LLC from St. Paul Radiology, P.A. and the related agreements entered into
between the Company and St. Paul Radiology, P.A. As previously disclosed, the Company and St. Paul Radiology, P.A. have been in a dispute regarding those agreements. In recent weeks, the parties have made substantial progress toward achieving a
negotiated resolution to this dispute and a mutually-acceptable dissolution of the original arrangement between the parties, although such resolution remains subject to continued negotiation of final terms and definitive agreements. As part of the
potential transaction, the parties would terminate their existing relationships and unwind the July 2007 transaction for which the Company would receive an up-front payment from St. Paul Radiology of $10 million and ongoing periodic payments
totaling $14 million, resulting in an aggregate amount paid by St. Paul Radiology to the Company of $24 million. In addition, concurrently with the termination of the agreements with St. Paul Radiology, the Company would also enter into a separate
agreement pursuant to which the Company would sell each of Midwest Physician Services, LLC and Emergency Radiology Services, LLC and their related assets for an aggregate consideration of $2 million payable to the Company upon closing. Settlement
negotiations are not complete and the parties may not be able to negotiate a resolution. If a settlement is negotiated, it may be on terms different than those currently contemplated. Finally, as a result of the credit agreement and collateral
agreement the Company entered into in connection with the original transaction with St. Paul Radiology, P.A. in July 2007, the potential settlement described above requires the consent of the Companys lenders. As of the date of this report,
the Company has received the consent of lenders holding the requisite amount of commitments under the term loan to approve the transaction, with such consent becoming effective when and if the settlement with St. Paul Radiology, P.A. is consummated.
Pursuant to that consent, the Company intends to pay to the lenders an aggregate of $36 million in principal repayments, with $26 million to be paid upon the closing of the transaction with St. Paul Radiology, P.A and an additional $10 million to be
paid to the lenders on or before June 30, 2011.



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NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS(Continued)

(unaudited)



As a result of the ongoing negotiations described above and the terms being contemplated by the parties, the Company has determined that
an impairment indicator is present related to the intangible assets acquired from St. Paul Radiology, P.A. The Company has concluded that $27.3 million of the $49.6 million carrying value of these intangible assets is impaired. As a result, the
Company recorded a non-cash intangible impairment charge of $27.3 million in the three months ended March 31, 2010. The Company will continue to assess whether impairment indicators are present or expected cash flows change and, if so, perform
impairment testing to determine the fair value of these recorded assets.

A summary of intangible assets is as follows:



|                                 |  |                      |                  |                |                         |                   |           |        |                  |   |                         |  |           |        |  |   |        |  |   |       
|-------------------------------- |  | -------------------- | ---------------- | -------------- | ----------------------- | ----------------- | --------- | ------ | ---------------- | - | ----------------------- |  | --------- | ------ |  | - | ------ |  | - | ------
|                                 |  | EstimatedUseful Life |                  | March 31, 2010 |                         | December 31, 2009
|                                 |  |                      | HistoricalAmount |                | AccumulatedAmortization |                   | NetAmount |        | HistoricalAmount |   | AccumulatedAmortization |  | NetAmount
|                                 |  |                      |                  | (In thousands)
|Customer lists and relationships |  | 6-10 years           |                  | $              | 30,770                  |                   | $         | 10,382 |                  | $ | 20,388                  |  | $         | 30,770 |  | $ | 9,579  |  | $ | 21,191
|Tradename and trademarks         |  | 5 years              |                  |                | 2,540                   |                   |           | 1,698  |                  |   | 842                     |  |           | 2,820  |  |   | 1,773  |  |   | 1,047 
|Customer contract (a)            |  | 20 years             |                  |                | 25,791                  |                   |           | 3,492  |                  |   | 22,299                  |  |           | 57,180 |  |   | 7,028  |  |   | 50,152
|Noncompete agreements (b)        |  | 5 years              |                  |                | 0                       |                   |           | 0      |                  |   | 0                       |  |           | 780    |  |   | 620    |  |   | 160   
|                                 |  |                      |                  |                |                         |                   |           |        |                  |   |                         |  |           |        |  |   |        |  |   |       
|                                 |  |                      |                  | $              | 59,101                  |                   | $         | 15,572 |                  | $ | 43,529                  |  | $         | 91,550 |  | $ | 19,000 |  | $ | 72,550
|                                 |  |                      |                  |                |                         |                   |           |        |                  |   |                         |  |           |        |  |   |        |  |   |       



|(a) | The customer contract amount shown relates specifically to the agreement between St. Paul Radiology, P.A. and the Company.
|--- | --------------------------------------------------------------------------------------------------------------------------

|(b) | The noncompete agreement amount shown relates specifically to the agreement between St. Paul Radiology, P.A. and the Company.
|--- | -----------------------------------------------------------------------------------------------------------------------------



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##### Table of Contents

NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS(Continued)

(unaudited)



Amortization expense was $1.7 million and $1.9 million for the three months ended March 31, 2010 and 2009, respectively. The
following is a schedule of estimated future amortization expense as of March 31, 2010:



|                                     |  |                |       
|------------------------------------ |  | -------------- | ------
|                                     |  | Amount        
|Estimated Amortization Expense (a):  |  | (in thousands)
|Nine months ending December 31, 2010 |  | $              | 3,962 
|Year ending December 31, 2011        |  |                | 5,080 
|Year ending December 31, 2012        |  |                | 4,545 
|Year ending December 31, 2013        |  |                | 4,458 
|Year ending December 31, 2014        |  |                | 4,449 
|Thereafter                           |  |                | 21,035
|                                     |  |                |       
|Total                                |  | $              | 43,529
|                                     |  |                |       



|(a) | Actual amortization amounts in future years may differ from amounts shown in this table due to any future acquisitions or changes in existing intangible asset balances.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------

4. LONG-TERM DEBT

The Company has outstanding a fully syndicated term loan (the Term Loan) pursuant to which the Company has $78.0 million in
outstanding borrowings as of March 31, 2010. The Term Loan is required to be repaid in quarterly installments equal to approximately $0.2 million (such amount subject to adjustment from time to time as a result of voluntary principal repayments
made by the Company) with the remaining balance due in a single payment on the maturity date of July 10, 2014.

Interest
under the term loan is based, at the option of the Company, on either: (i) a floating per annum rate based on prime rate plus 1.50% or (ii) a floating per annum rate (based upon one, two, three or six-month interest periods), which the
Company has chosen, based on LIBOR plus 2.50% (2.80% at March 31, 2010). The Company entered into five interest rate swap contracts during 2008 which, while in place, will maintain a fixed effective interest rate on the Term Loan of
approximately 4.95%.

The Term Loan contains customary covenants and restrictions and is guaranteed by certain of the
Companys wholly owned operating subsidiaries, including NightHawk Radiology Services, LLC, the Companys primary operating entity, and is collateralized by substantially all of the Companys assets.

The Term Loan is subject to mandatory repayment under certain circumstances, including in connection with the Companys receipt of
proceeds from certain issuances of equity or debt, sales of assets and casualty events. In addition, the credit agreement requires a principal payment in the amount equal to 50% of the Companys Excess Cash Flow as defined in the Companys
loan agreement if the Total Leverage Ratio as defined in the credit agreement is at or above 2.50 at year end. As of March 31, 2010, the Companys Total Leverage Ratio was 2.73.



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NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS(Continued)

(unaudited)



The Term Loan contains customary affirmative, negative and financial covenants, including, among other requirements, negative covenants
that restrict the Companys ability to create liens, enter into mergers and acquisitions, pay dividends, repurchase stock, incur indebtedness, make investments and capital expenditures, and financial covenants that limit the maximum leverage
the Company can maintain at any one time. The maximum Total Leverage Ratio allowed under the terms of the loan is below 4.00 as measured on a trailing four quarter basis. The Total Leverage Ratio excludes non-cash charges such as goodwill and
intangible impairment charges and stock compensation. As of March 31, 2010, the Company was in compliance with all covenants contained in the Companys Term Loan agreement and expects to remain in compliance with these covenants throughout
2010.

The Term Loan may be voluntarily repaid without premium or penalty. The Company made required principal payments
of $0.2 million on the Term Loan during the quarter ended March 31, 2010. As discussed in Note 3Intangible Assets Subject to Amortization, if the transaction with St. Paul Radiology, P.A. is consummated, the Company intends to
make a principal repayment of $26 million immediately following the closing of the proposed transaction, and an additional principal payment of $10 million on or before June 30, 2011. For more information on this dispute and the potential
settlement, see also Note 3Intangible Assets Subject to Amortization, and Note 5Commitments and Contingencies.

5. COMMITMENTS AND CONTINGENCIES

LitigationThe Company is involved in litigation in the normal course of business. In addition to such litigation
matters, during the third quarter of 2009, the Company received a notice from St. Paul Radiology, P.A. in which St. Paul Radiology, P.A. indicated that it believes that the Company is in breach of certain of its obligations under the agreements
between St. Paul Radiology, P.A. and the Company. St. Paul Radiology, P.A. claims that, as a result of such alleged breaches, it is entitled to terminate the agreements and has incurred material damages which St. Paul Radiology, P.A. claims could
exceed $70 million. The Company believes such claims of breach and allegations of damages are without merit, that the Company has fulfilled all of its obligations under the agreements and that the agreements may not be terminated by St. Paul
Radiology, P.A.

In recent weeks, the parties have made substantial progress toward achieving a negotiated resolution to this
dispute and a mutually-acceptable dissolution of the original arrangement between the parties. Although such resolution remains subject to continued negotiation of final terms and definitive agreements, as part of the potential settlement, the
parties would terminate their existing relationships and unwind the July 2007 transaction. The Company would receive an up-front payment from St. Paul Radiology of $10 million and ongoing periodic payments totaling $14 million, resulting in an
aggregate amount paid by St. Paul Radiology to the Company of $24 million. In addition, concurrently with the termination of the agreements with St. Paul Radiology, the Company would also enter into a separate agreement pursuant to which the Company
would sell each of Midwest Physician Services, LLC and Emergency Radiology Services, LLC and their related assets for an aggregate consideration of $2 million payable to the Company upon closing. Settlement negotiations are not complete and the
parties may not be able to negotiate a resolution. If a settlement is negotiated, it may be on terms different than those currently contemplated. Finally, as a result of the credit agreement and collateral agreement the Company entered into in
connection with the original transaction with St. Paul Radiology, P.A. in July 2007, the potential settlement described above requires the consent of the Companys lenders. As of the date of this report, the Company has received the consent of
lenders holding the requisite amount of commitments under the term loan to approve the transaction, with such consent becoming effective when and if the settlement with St. Paul Radiology, P.A. is consummated. Pursuant to that consent, the Company
intends to pay to the lenders an aggregate of $36 million in principal repayments, with $26 million to be paid upon the closing of the transaction with St. Paul Radiology, P.A and an additional $10 million to be paid to the lenders on or before
June 30, 2011.

If the parties are not able to negotiate a settlement, it is likely that the Company and St. Paul
Radiology, P.A. will revert to the arbitration and litigation proceedings that were in process before discussions resumed. If this were to happen, the Company will again face the inherent uncertainty associated with any litigation or arbitration
proceeding. If in such proceedings, St. Paul Radiology, P.A.s claims of breach and related damages are demonstrated to be true and the dispute resolution process does not achieve a result favorable to the Company, the Company may be required
to remedy the alleged breach, pay damages and/or be faced with the termination of the agreements, resulting in the loss of the associated future revenue and profit and a potential material reduction or elimination in the value of the intangible
asset associated with these agreements. Termination of the agreements with St. Paul Radiology, P.A. or a reduction or termination in the revenue and related profits received under the agreements (whether as a result of a settlement or through an
adversarial proceeding) may have a material adverse impact on the Companys business, financial condition and results of operations and could cause the Companys Total Leverage Ratio under its credit agreement to exceed 2.5, which in turn
could trigger a mandatory principal repayment by the Company equal to 50% of its Excess Cash Flow for such year, or 4.0, which could result in the acceleration of the Companys obligation to repay all of its borrowings under its credit
agreement.

On December 17, 2009, a putative shareholder class action lawsuit was filed
against the Company and certain of the Companys former officers in the U.S. District Court for the District of Idaho. The case is captioned City of Marysville General Employees Retirement System v. NightHawk Radiology Holdings, Inc.,
et al., Case No. CIV 09-659-N-CWD. The complaint purports to be brought on behalf of a class of persons who purchased or otherwise acquired the Companys stock during the period April 10, 2007 to February 13, 2008, and asserts
claims under Section 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended, and Rule 10b-5 promulgated thereunder. Plaintiffs contend that the Company and the individual defendants violated the federal securities laws by issuing
false and misleading statements concerning the Companys operations, business, and prospects during the purported class period, and thereby artificially increased the price of the Companys stock. Plaintiffs seek unspecified compensatory
damages, interest, and attorneys fees and costs. On April 29, 2010, the court issued an order appointing Plymouth County Contributory Retirement System (Plymouth) as lead plaintiff, and approving Plymouths selection of
the law firms Scott + Scott LLP and Holland & Hart LLP as co-lead counsel. The court also ordered the parties to submit a proposed case scheduling order by May 14, 2010. Management intends to vigorously defend against these claims.



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NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS(Continued)

(unaudited)



Medical LiabilityIn addition to the litigation matters described above, the Company is also exposed to various risks
of loss related to litigation that may arise related to medical malpractice claims. The Company maintains insurance for medical liabilities in amounts considered adequate by Company management. The Companys claims-made policy provides coverage
up to the policy limits for claims filed within the period of the policy term, subject to deductible requirements. Coverage for affiliated radiologists is initiated when they begin providing services on behalf of the Company.

The Company records reserves for both asserted legal claims (medical liability and otherwise) as well as IBNR amounts for incurred but
not reported medical liability claims. Asserted claims are reserved based upon the Companys best estimate of future probable loss in accordance with the ContingenciesTopic of the FASB Accounting Standards Codification (ASC Topic 450).
The IBNR reserve is intended to cover potential medical claims that might arise related to past medical services performed by the Companys affiliated radiologists which have not yet been asserted. IBNR amounts are estimated using historical
claims information and actuarial-based industry indices. During the three months ended March 31, 2010 and 2009, the Company recorded an additional $0.0 million and $0.4 million, respectively, for estimated IBNR amounts. IBNR amounts,
recorded as professional liability reserve on the balance sheet at March 31, 2010 and December 31, 2009 totaled $4.0 million.

6. STOCK COMPENSATION PLANS

Stock-Based Award PlansThe Company has two stock-based award plans, the 2004 Stock Plan (the 2004 Plan)
and the 2006 Equity Incentive Plan (the 2006 Plan). In February 2006, all shares available for grant under the 2004 Plan were rolled over and became available for grant under the 2006 Plan. In addition, on the first day of each fiscal
year beginning in 2007, the number of shares available for issuance under the 2006 Plan may be increased by an amount equal to the lesser of (i) 3% of the outstanding shares of the Companys common stock on the first day of the fiscal
year, and (ii) such other amount as the Companys Board of Directors may determine. As of March 31, 2010, the Company had an aggregate of 5,691,179 shares of its common stock reserved for issuance under the 2004 Plan and 2006 Plan. Of
these shares, 792,220 shares were available for future grants and 4,898,959 shares were subject to outstanding stock awards as of March 31, 2010.

The Companys Board of Directors administers the plans, establishes to whom the awards are granted, and sets the terms and
conditions, including the exercise period, of such awards. All stock options granted have an exercise price equal to or greater than the fair value of the Companys common stock on the date the option is granted. All restricted stock units
(RSUs) are granted with an exercise price of zero. Both stock options and RSUs granted generally have contractual terms of ten years and vest over two, three, or four years, depending upon the type of grant. Options and RSUs granted to
employees and directors are valued using the Black-Scholes model, and the resulting expense is recognized using the accelerated method over the service period for the entire award.

Non-Employee GrantsThe Company records physician stock-based compensation expense in connection with any equity-based
grants to the Companys affiliated radiologists in accordance with the Compensation-Stock CompensationTopic of the FASB Accounting Standards Codification (ASC Topic 718) and the EquityTopic of the FASB Accounting Standards
Codification (ASC Topic 505), by determining the fair value using the Black-Scholes option pricing model.

Because the
Companys affiliated radiologists are independent contractors, the Company calculates the fair value of the stock-based compensation expense in each period. The amount of physician stock-based compensation expense the Company records in a given
period depends primarily on the number of shares subject to equity-based grants held by the Companys affiliated radiologists, the number of hours worked, and the change in the value of the Companys common stock in that period. If the
price of the Companys common stock increases over a given period, this accounting treatment results in compensation expense that exceeds the expense the Company would have recorded if these individuals were employees. Stock-based compensation
to the Companys affiliated radiologists is included in professional services expense.



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NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS(Continued)

(unaudited)



Stock-Based Awards SummaryA summary of the Companys stock-based award activity for employees and non-employees
under the 2004 and 2006 plans is as follows:



|                                                 |  |                        |   |  |                               |      |                                                   |      |                                        |   |    
|------------------------------------------------ |  | ---------------------- | - |  | ----------------------------- | ---- | ------------------------------------------------- | ---- | -------------------------------------- | - | ---
|Stock Options                                    |  | Number ofStock Options |   |  | WeightedAverage ExercisePrice |      | Weighted AverageRemainingContractual Life (Years) |      | AggregateIntrinsic Value(In thousands)
|Outstanding as of January 1, 2010                |  | 3,170,333              |   |  | $                             | 5.51 |                                                   |      |                                        |   |    
|Granted                                          |  | 2,000                  |   |  |                               | 2.99 |                                                   |      |                                        |   |    
|Exercised                                        |  | (4,084                 | ) |  |                               | 1.60 |                                                   |      |                                        |   |    
|Cancelled                                        |  | (115,905               | ) |  |                               | 5.93 |                                                   |      |                                        |   |    
|                                                 |  |                        |   |  |                               |      |                                                   |      |                                        |   |    
|Outstanding as of March 31, 2010                 |  | 3,052,344              |   |  | $                             | 5.50 |                                                   | 7.10 |                                        | $ | 598
|                                                 |  |                        |   |  |                               |      |                                                   |      |                                        |   |    
|Exercisable as of March 31, 2010                 |  | 1,703,830              |   |  | $                             | 6.25 |                                                   | 5.71 |                                        | $ | 598
|Vested and expected to vest as of March 31, 2010 |  | 2,990,007              |   |  | $                             | 5.53 |                                                   | 7.06 |                                        | $ | 598

The weighted-average
grant-date fair values per share for options granted during the three months ended March 31, 2010 was $1.52.

Activity
related to the Companys restricted stock unit awards is as follows:



|                                                 |  |                 |   |  |                                                   |  |                                        |      
|------------------------------------------------ |  | --------------- | - |  | ------------------------------------------------- |  | -------------------------------------- | -----
|Restricted Stock Unit Awards                     |  | Number ofAwards |   |  | Weighted AverageRemainingContractual Life (Years) |  | AggregateIntrinsic Value(In thousands)
|Outstanding as of January 1, 2010                |  | 961,230         |   |  |                                                   |  |                                        |      
|Granted                                          |  | 945,500         |   |  |                                                   |  |                                        |      
|Vested (a)                                       |  | (27,277         | ) |  |                                                   |  |                                        |      
|Cancelled                                        |  | (32,838         | ) |  |                                                   |  |                                        |      
|                                                 |  |                 |   |  |                                                   |  |                                        |      
|Outstanding as of March 31, 2010                 |  | 1,846,615       |   |  | 1.62                                              |  | $                                      | 5,872
|                                                 |  |                 |   |  |                                                   |  |                                        |      
|Vested and expected to vest as of March 31, 2010 |  | 1,711,394       |   |  | 1.56                                              |  | $                                      | 5,442



|(a) | The number of RSU awards vested includes shares withheld on behalf of employees to satisfy the statutory tax withholding requirements.
|--- | --------------------------------------------------------------------------------------------------------------------------------------

Intrinsic value represents the amount by which the fair market value of the underlying stock exceeds the exercise price of the options
and RSUs.

Recognition of Compensation ExpenseDuring the three months ended March 31, 2010 and 2009,
the Company recognized stock compensation expense of $0.5 million and $1.0 million, respectively. As of March 31, 2010, the total remaining unrecognized compensation cost related to unvested stock-based employee/director arrangements, net of an
estimated forfeiture rate of 8.9%, was $4.3 million and is expected to be recognized over a weighted average period of 1.42 years.

The Company measures the compensation cost associated with stock-based payments by estimating the fair value of stock options as of the
grant date using the Black-Scholes option pricing model. The Company believes that the valuation technique and the approach utilized to develop the underlying assumptions are appropriate in calculating the fair values of the stock options granted.
Estimates of fair value are not intended to predict actual future events or the value ultimately realized by the employees who receive equity awards.

The assumptions used to estimate the fair value of the stock-based arrangements were as follows:



|                                       |  |                             |   |  |      |  
|-------------------------------------- |  | --------------------------- | - |  | ---- | -
|                                       |  | Three Months EndedMarch 31, |  
|                                       |  | 2010                        |   |  | 2009 |  
|Dividend yield                         |  |                            |   |  |     |  
|Expected volatility                    |  | 64                          | % |  | 57   | %
|Risk-free interest rates               |  | 1.81                        | % |  | 1.84 | %
|Expected term for employees (years)    |  | 4.3                         |   |  | 4.8  |  
|Expected term for non-employee (years) |  | N/A                         |   |  | 10   |  



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NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS(Continued)

(unaudited)



Expected volatility is estimated by looking at the historical volatility of the Companys stock price and considering whether or not
the Companys future stock prices are expected to be materially different than the past. The risk-free interest rate is based on the U.S. Treasury yields in effect at the time of grant corresponding with the expected term of the options. The
expected option term for employees is the number of years estimated that options will be outstanding prior to exercise considering vesting schedules, historical exercise experience and other relevant factors.

7. EARNINGS PER SHARE

The following table presents a reconciliation of the numerators and denominators used in the basic and diluted earnings per common share
computations (dollars in thousands, except share data):



|                                                                           |  |                    |            |   |                |   |            |  
|-------------------------------------------------------------------------- |  | ------------------ | ---------- | - | -------------- | - | ---------- | -
|                                                                           |  | Three Months Ended |           
|                                                                           |  | March 31, 2010     |            |   | March 31, 2009 |  
|Numerator:                                                                 |  |                    |            |   |                |   |            |  
|Net income (loss) available to common stockholders                         |  | $                  | (19,195    | ) |                | $ | (52,613    | )
|                                                                           |  |                    |            |   |                |   |            |  
|Denominator:                                                               |  |                    |            |   |                |   |            |  
|Weighted average common shares outstanding- basic                          |  |                    | 23,576,537 |   |                |   | 26,649,147 |  
|Effect of dilutive stock options, restricted stock units, and warrants (a) |  |                    |           |   |                |   |           |  
|                                                                           |  |                    |            |   |                |   |            |  
|Weighted average common shares outstanding-dilutive                        |  |                    | 23,576,537 |   |                |   | 26,649,147 |  
|                                                                           |  |                    |            |   |                |   |            |  
|Earnings (loss) per common sharebasic                                     |  | $                  | (0.81      | ) |                | $ | (1.97      | )
|Earnings (loss) per common sharediluted                                   |  | $                  | (0.81      | ) |                | $ | (1.97      | )
|                                                                           |  |                    |            |   |                |   |            |  
|Anti-dilutive shares excluded from calculation (a)                         |  |                    | 3,010,134  |   |                |   | 4,126,871  |  
|                                                                           |  |                    |            |   |                |   |            |  



|(a) | The effects of the shares which would be issued upon exercise of these options, RSUs and warrants have been excluded from the calculation of diluted earnings (loss) per
common share because they are anti-dilutive.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

8. INCOME TAXES

The effective rates for the three months ended March 31, 2010 and 2009 were 36.2% and 20.7%, respectively. The difference in
effective rates was primarily attributable to a non-deductible portion of the non-cash goodwill impairment incurred in the three months ended March 31, 2009.

Based on the Companys current assessment of future taxable income, including available tax planning opportunities, the Company
anticipates that it is more likely than not that it will generate sufficient taxable income to realize its deferred tax assets, and therefore the Company did not record a valuation allowance against its deferred tax assets as of March 31, 2010.
However, changes in the estimate of future taxable income and deterioration in the business and economic climate could significantly affect the determination of the necessity for a valuation allowance against deferred tax assets in future periods.

9. DERIVATIVE FINANCIAL INSTRUMENTS

The Company recognizes all derivatives on the condensed consolidated balance sheet at fair value. The Company designates at inception
whether the derivative contract is considered hedging or non-hedging in accordance with the Derivatives and HedgingTopic of the FASB Accounting Standards Codification (ASC Topic 815).

In December 2008, the Company settled the two interest rate swap contracts entered into during 2007 resulting in a cash payment by the
Company of $5.3 million. The pre-tax net unrealized loss within accumulated other comprehensive income associated with the cancelled interest rate swap contracts of $5.3 million is being amortized to interest expense over the original lives of the
contracts. Of this $5.3 million amount, $3.3 million was recognized in 2009 and $0.7 million was recognized during the three months ended March 31, 2010, leaving $1.3 million to be amortized to interest expense over the next 6 months. The
cancelled swap contracts were replaced with five interest rate swap contracts with a combined notional amount of $93.5 million. All contracts expire on June 30, 2014 and, while in effect, maintain an effective interest rate on the
Companys outstanding debt of approximately 4.95%.



15



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##### Table of Contents

NIGHTHAWK RADIOLOGY HOLDINGS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS(Continued)

(unaudited)



The contracts were initiated to maintain compliance with debt requirements and to protect the Company against changes in the interest
payments associated with its variable-rate long-term debt, and therefore are considered cash flow hedges. As a result, as long as the swap contract is deemed highly effective, changes in the fair value of the swap contract are recorded as either an
asset (a gain position), or a liability (a loss position) on the balance sheet, with the offset recorded in accumulated other comprehensive income, a separate component of stockholders equity.

As principal is repaid on the debt, the combined notional amounts of the five interest rate swap contracts will be different than the
principal balance of the outstanding debt. If this difference is material, it can cause certain of the five interest rate swap contracts to be deemed ineffective. Due to voluntary principal payments made by the Company, two of the interest rate swap
contracts were deemed ineffective. As a result, changes in the fair values of these ineffective contracts were recorded as a component of interest expense in the Companys statement of operations in 2009 and in the three months ended
March 31, 2010.

As a result of the proposed transaction with St. Paul Radiology and our associated plans to make the
principal repayments described in Note 4Long-Term Debt, (even though such arrangements are not yet final and remain subject to change), we have determined that the three remaining effective interest rate swap contracts no longer
meet the criteria for treatment as cash flow hedges under the guidance of ASC Topic 815 and related interpretations. As a result, the Company has prospectively discontinued cash flow hedge accounting for these interest rate swap contracts as of
January 1, 2010. The pre-tax net unrealized gain within accumulated other comprehensive income as of the date the Company discontinued hedge accounting for its interest rate swap contracts of $0.9 million will be amortized to interest expense
over the remaining lives of the contracts while they are in effect, which is June 30, 2014. Of this $0.9 million amount, $0.1 million was recognized during the three months ended March 31, 2010. Because cash flow hedge accounting will not
be applied to any interest rate swap contracts, changes in the fair value of these interest rate swap contracts subsequent to January 1, 2010 have been recorded as a component of interest expense in the Companys statement of operations
and will be on a prospective basis.

At March 31, 2010 and December 31, 2009, the fair value of the interest rate
swap contracts resulted in a net unrealized loss of $0.3 million and a net unrealized gain of $1.1 million, respectively. The fair value of the interest rate swap contracts are found within Other Assets and Other Liabilities on the Companys
balance sheet. For the three months ended March 31, 2010, the amount of hedge ineffectiveness of $1.5 million is presented in the Companys statement of operations as a component of interest expense.

10. FAIR VALUE MEASUREMENTS

The Fair Value Measurements and DisclosuresTopic of the FASB Accounting Standards Codification (ASC Topic 820), defines fair value
as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the
measurement date. ASC Topic 820 also establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard describes three levels of
inputs that may be used to measure fair value:

Level 1Quoted prices in active markets for identical assets or
liabilities.

Level 2Observable inputs other than Level 1 prices such as quoted prices for similar assets or
liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of
the assets or liabilities.

The Company uses quoted market prices for identical assets to measure the fair value of its
investments in money market funds and marketable securities and therefore considers all of the Companys money market funds and marketable securities as Level 1.

The Company has determined that its interest rate swaps are Level 2 in the fair value hierarchy discussed above. As discussed in
Note 4Long-Term Debt, the Companys interest rate swaps are based on a LIBOR rate. Fair value for the interest rate swaps are based on a model-derived valuation using the LIBOR rate, which is observable at commonly quoted
intervals for the full term of the swap.

As discussed in Note 3Intangible Assets
Subject to Amortization and in accordance with the provisions of the Intangibles-Goodwill and Other Topic of the FASB Accounting Standards Codification (ASC Topic 350), certain of the Companys intangible assets with carrying amounts in
excess of their current fair values were written down, resulting in a non-cash impairment charge of $27.3 million ($16.9 million after-tax). Of the $27.3 million total impairment charge, $27.1 million related to the administrative services
agreements entered into with St. Paul Radiology, P.A. in July 2007 and $0.2 million related to the acquired trademark and noncompete agreements with the St. Paul Radiology affiliated physicians. To calculate the fair value of these intangible
assets, the Company used an income approach utilizing a discounted cash flow model using cash flows based on the probable outcome of the dispute and a discount rate which it believes to be commensurate with the overall risk associated with this
particular situation.

The fair values of the Companys money market funds using Level 1 inputs on a recurring basis as
of March 31, 2010 and December 31, 2009 were $24.9 million and $18.9 million, respectively. The fair values of the Companys marketable securities using Level 1 inputs on a recurring basis as of March 31, 2010 and
December 31, 2009 were $0.0 million and $6.0 million, respectively. The fair values of the Companys interest rate swap contracts using Level 2 inputs on a recurring basis as of March 31, 2010 and December 31, 2009 were a loss
position of $0.3 million and a gain position of $1.1 million, respectively.



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##### Table of Contents

|ITEM 2. | Managements Discussion and Analysis of Financial Condition and Results of Operations
|------- | -------------------------------------------------------------------------------------

This quarterly report contains forward-looking statements that involve risks and uncertainties. The statements contained in this
quarterly report that are not purely historical are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. In some cases
you can identify forward-looking statements by terms such as may, will, should, could, would, expect, plan, anticipate, believe,
estimate, project, predict, and potential, and similar expressions intended to identify forward-looking statements. These forward-looking statements include, without limitation, statements relating to
future economic conditions in general and statements about our future:



| |  |  | potential settlement and related transaction with St. Paul Radiology, P.A. and the potential impact to our financial results and liquidity, the
potential principal payments to our lenders and the potential tax benefits associated with such transaction,
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | strategy and business prospects;
| | - |  | --------------------------------



| |  |  | development and expansion of services, and the size, growth, and leadership of the potential markets for these services;
| | - |  | ------------------------------------------------------------------------------------------------------------------------



| |  |  | development of new customer relationships and products;
| | - |  | -------------------------------------------------------



| |  |  | sales, earnings, income, expenses, operating results, tax rates, operating and gross profit and profit margins, valuations, receivables, reserves,
liquidity, investment income, currency rates, employee stock option exercises, capital resource needs, customers, and competition;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | ability to obtain and protect our intellectual property and proprietary rights; and
| | - |  | -----------------------------------------------------------------------------------



| |  |  | acquisitions and transaction costs and adjustments.
| | - |  | ---------------------------------------------------

All of these forward-looking statements are based on information available to us on the date of this quarterly report. Our actual
results could differ materially from those discussed in this quarterly report. The forward-looking statements contained in this quarterly report, and other written and oral forward-looking statements made by us from time to time, are subject to
certain risks and uncertainties that could cause actual results to differ materially from those anticipated in the forward-looking statements. Factors that might cause such a difference include, but are not limited to, those discussed in Part II
Item 1A of this report entitled Risk Factors.

Overview

We are leading the transformation of the practice of radiology by providing high-quality, cost-effective solutions to radiology groups and
hospitals throughout the United States. Our team of independent contractor, American Board of Radiology-certified, state-licensed and hospital-privileged physicians, provides professional services (interpretations, exams,
scans or reads) 24 hours per day, seven days a week, for approximately 26% of all U.S. hospitals. The reads that we provide continue to consist primarily of off-hours preliminary reads, but increasingly include final and
sub-specialty interpretations. For more information, visit our website at www.nighthawkrad.net. The information contained on, or accessible through, our website is not incorporated in this filing.

Recent Developments  Potential Resolution of Dispute with St. Paul Radiology, P.A. and Related Transaction

Background

As we have discussed in previous reports, in July 2007, we entered into a series of transactions with St. Paul Radiology, P.A. (St.
Paul Radiology) pursuant to which we acquired from St. Paul Radiology two businesses  a radiology administrative services company called Midwest Physician Services, LLC, and a small teleradiology company called Emergency Radiology
Services, LLC. In connection with the July 2007 transaction and in addition to our acquiring these two entities, the parties entered into several long-term services agreements pursuant to which we (through Midwest Physician Services) provide
administrative services to St. Paul Radiology and its affiliates. Pursuant to these agreements, in consideration for the delivery of the administrative services, St. Paul Radiology pays to us administrative services fees. In the first quarter of
2010, we generated an aggregate of $5.1 million, or approximately 14% of our total revenue from our relationship and related agreements with St. Paul Radiology, P.A.



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As we have also discussed in previous reports, in September 2009, St. Paul Radiology
notified us that it believes that we are in breach of certain of our obligations under our agreements with it and that, as a result of such alleged breaches, it is entitled to terminate the agreements and it has incurred material damages which St.
Paul Radiology claims could exceed $70 million. We continue to believe such claims of breach and allegations of damages are without merit, that we have fulfilled all of our obligations under the agreements and that the agreements may not be
terminated by St. Paul Radiology. However, we also recognize that there is always inherent uncertainty in any litigation or arbitration proceeding. See Part II Item 1A  Risk Factors If our customers terminate their
agreements with us or if our customers businesses materially decline, our financial condition and operating results could be adversely affected.

Recent Developments

In recent weeks, as a result of continued discussions between us and St. Paul Radiology, the parties have made substantial progress toward
achieving a negotiated resolution to this dispute and reaching a mutually-acceptable dissolution of the original arrangement between the parties. Although such resolution remains subject to continued negotiation of final terms and definitive
agreements, as part of the potential transaction, the parties would terminate their existing relationships and unwind the July 2007 transaction. We would receive an up-front payment from St. Paul Radiology of $10 million and ongoing periodic
payments totaling $14 million, resulting in an aggregate amount paid by St. Paul Radiology to us of $24 million. In addition, concurrently with the termination of the agreements with St. Paul Radiology, we would also enter into a separate agreement
pursuant to which we would sell each of Midwest Physician Services, LLC and Emergency Radiology Services, LLC and their related assets for an aggregate consideration of $2 million payable to us upon closing. Finally, in addition to the amounts
described above, if these transactions are consummated, we also expect to receive a tax refund equal to approximately $10 million resulting from the loss we will incur as a result of these transactions. To be clear, settlement negotiations are not
complete and the parties may not be able to negotiate a resolution. If a settlement is negotiated, it may be on terms different than those currently contemplated. However, because of the discussions we have had to date, and as a result of the
potential transaction described above, there have been several accounting implications reflected in our financial statements for this period and potential implications upon our future results that are described below:



| |  |  | Impairment of Intangible Assets. Our intangible assets include those assets acquired as part of our July 2007 acquisition of Midwest Physician
Services, LLC and Emergency Radiology Services, LLC from St. Paul Radiology, P.A. and the related agreements entered into between us and St. Paul Radiology, P.A. As a result of the settlement negotiations described above and the terms being
contemplated by the parties, we have determined that an impairment indicator is present related to the assets we acquired from St. Paul Radiology, P.A. We have concluded that $27.3 million of the $49.6 million carrying value of these intangible
assets is impaired. As a result, we recorded a non-cash intangible impairment charge of $27.3 million in the three months ended March 31, 2010. We will continue to assess whether impairment indicators are present or change and, if so, perform
further impairment testing to determine the fair value of these recorded assets.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Principal Repayment of our Term Loan. As a result of the credit agreement and collateral agreement twe entered into in connection with the
original transaction with St. Paul Radiology in July 2007, the potential settlement described above requires the consent of our lenders under those agreements. As of the date of this report, we have received the consent of the required lenders to
approve the transaction, with such consent becoming effective when and if the transaction with St. Paul Radiology is consummated. Pursuant to that consent, if the transactions are consummated, the Company intends to pay to the lenders essentially
all of the proceeds and tax refunds generated from the proposed transactions, amounting to an aggregate of $36 million in principal repayments, with $26 million to be paid following the closing of the transaction and an additional $10 million to be
paid to the lenders on or before June 30, 2011.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Interest Rate Swap Contract Accounting. As discussed more fully in Note 9Derivative Financial Instruments,, as a result of the
proposed transaction with St. Paul Radiology and our associated plans to make the principal repayments described above (even though such arrangements are not yet final and remain subject to change), we have determined that the three remaining
effective interest rate swap contracts are no longer effective cash flow hedges. As a result, we have discontinued cash flow hedge accounting for these interest rate swap contracts effective as of January 1, 2010. Because cash flow hedge
accounting will not be applied to these interest rate swap contracts, changes in the fair value of these interest rate swap contracts subsequent to January 1, 2010 have been recorded as a component of interest expense in our statement of
operations and will be going forward. For additional information, see Note 9Derivative Financial Instruments..
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Impact on Financial Results. If the transactions described above are consummated and we dissolve our relationship with St. Paul Radiology, our
financial results will be impacted. As described above, in the first quarter of 2010, we generated an aggregate of $5.1 million, or approximately 14% of our total revenue from our relationship and related agreements with St. Paul Radiology, P.A. If
the transaction is consummated and we no longer receive the benefit of this revenue and related profits that we generate from our relationship with St. Paul Radiology, our Total Leverage Ratio under our credit agreement will increase. See
Liquidity and Capital ResourcesFinancial Condition and Liquidity. See also Part IIItem 1ARisk FactorsWe may need additional capital, which may not be available to us.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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##### Table of Contents

Trends in our Business and Results of Operations

Evolving Martketplace.

The market for our services is evolving rapidly. The past several years have seen a substantial increase in the number of
competitors in the market for our services. As a result, we have experienced declining prices for our services and increasing levels of customer attrition. To improve our customer retention, we have focused our efforts on setting and maintaining
high quality service levels and we have lowered our prices where appropriate to retain customers. We have seen modest improvement in customer retention in recent quarters; however, we also experienced an increase in the rate of price decline. On the
other hand, our expenses have increased, resulting in significantly reduced margins and profit. We expect these trends to continue in the future.

Service Revenue.

We generate revenue from a number of sources, including off-hours preliminary exams, business services offerings and final and
subspecialty interpretations. The revenue growth that we experienced in the past was due in large part to the growth in scan volume in our off-hours preliminary business, which continues to make up the majority of our revenue. Recently,
however, our volume growth in the off-hours preliminary business has slowed as the market for these services has matured and become more competitive. In addition, we have also seen the average price for our preliminary reads decline significantly
and experienced customer losses which, combined, have caused our revenues and margins from our off-hours preliminary business to decline in recent periods. We expect these challenges to continue in the foreseeable future. In response to such
trends, our strategy is to sell new services, principally final interpretations, to our existing customers by communicating their value and demonstrating the advantages we offer over our competitors.

For the three months ended March 31, 2010, we generated an aggregate of $5.1 million, or approximately 14% of our total revenue from
our relationship and related agreements with St. Paul Radiology, P.A. If these agreements with St. Paul Radiology, P.A. are terminated (whether as a result of a negotiated settlement or through a litigation or arbitration proceeding), our service
revenue and related profits will decline.

Professional Service Expenses.

Professional service expenses consist primarily of the fees we pay to our affiliated radiologists, any physician stock-based compensation,
the premiums for medical liability insurance, and any medical liability claims loss expenses. Since inception, our professional service fees have increased in absolute dollars each year, primarily due to the increased number of reads performed as
our volumes have increased and the addition of new affiliated radiologists to perform the increased workload. We expect that our professional service fees will continue to fluctuate in absolute dollars as volumes and modality mix vary. We also
expect our professional services expenses to increase as a percentage of revenue due to the shift in our business towards more final reads and due to the price declines we are experiencing. In response to price declines, we are taking steps to lower
our professional services expense per read. Although we cannot guarantee that we will be successful, we are working to optimize workflow surrounding our image acquisition and routing processes. In addition, we hope to hire physicians at
more competitive rates for our growing finals business. We believe these two initiatives will help lower the total cost of delivery in the future.

Our medical liability expense has also increased in absolute dollars each year since inception, primarily due to the increasing number of
scans as our business has grown. We expect our medical liability premiums and our reserves for incurred but not reported (IBNR) medical liability claims to continue to fluctuate as our claims experience and volumes change over time.

We record physician stock-based compensation expense in connection with any equity-based grants to our affiliated
radiologists in accordance with the Compensation-Stock CompensationTopic of the FASB Accounting Standards Codification (ASC Topic 718) and the EquityTopic of the FASB Accounting Standards Codification (ASC Topic 505), and present
this expense in our consolidated statements of operations as part of our professional services expense. The amount of physician stock-based compensation expense we record in a given period depends primarily on the number of shares subject to
equity-based grants held by our affiliated radiologists, the number of hours worked, and the change in the value of our common stock in that period. Our expense in future periods for physician stock-based compensation will be driven primarily by
changes in our stock price, new equity-based grants we make to our affiliated radiologists, and the rate at which those equity-based grants are earned over such periods. We anticipate increased physician stock-based compensation expense this year
and in 2011 resulting primarily from equity grants of our common stock issued during the quarter ended March 31, 2010 to our affiliated physicians in connection with the adoption of a new form of physician contract in December 2009.



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Sales, General and Administrative Expenses.

Our sales, general and administrative expenses consist primarily of salaries and related expenses for our employees, employee stock-based
compensation, information technology and telecommunications expenses, costs associated with licensing and privileging our affiliated radiologists, facilities and office-related expenses, sales and marketing expenses and other general and
administrative expenses. Our sales, general and administrative expenses have increased in absolute dollars since inception primarily as a result of increased payroll expenses in connection with higher headcount in support of the growth in our
business. If our agreements with St. Paul Radiology, P.A. are terminated (whether as a result of a negotiated settlement or through a litigation or arbitration proceeding), then we expect that our sales, general and administrative expenses will
decline.

The amount of employee stock-based compensation expense we record in a given period depends primarily on the number
of shares subject to outstanding shared-based awards and the valuation criteria used at the time of the grant. The amount of expense is also impacted by the accelerated method we use to expense these awards and by forfeitures of non-vested awards.

Interest Expense.

Interest on our outstanding debt is at a variable rate. Since 2007, we have hedged the risk associated with fluctuations in interest rates
by entering into interest rate swap contracts. In December 2008, in response to interest rates falling to historically low levels, we settled our original interest rate swap contracts and entered into five new interest rate swap contracts that have
a term roughly equal to the remaining term on our loan. Our new effective interest rate under these hedges is 4.95%. Our new effective interest rate and actual cash payments for interest under these hedges will be approximately 4.95% for the
remaining life of the loan. The interest rate swap contracts expire in June 2014. Until the maturity of our term loan, reported interest expense will differ from our effective rate due to the mark to market adjustments on our ineffective interest
rate swap contracts, the effect of cancelled and ineffective interest rate swap contracts and loan fee amortization. Effective January 1, 2010, we have deemed all of our interest rate swap contracts to be ineffective hedges, and therefore all
of the mark-to-market adjustments related to our interest rate swap contracts will impact interest expense in future periods, potentially leading to fluctuations in interest expense. Finally, interest expense may be lower in future periods due to
potential voluntary principal repayments associated with the potential settlement with St. Paul Radiology, P.A.

Income Tax
Expense.

Income tax expense consists of U.S federal, state, and foreign jurisdiction income taxes. We expect our
income tax expense to fluctuate due to changes to the Internal Revenue Code and the apportionment of our business geographically with regards to state taxes. Our income tax expense may also increase or fluctuate in future periods if our actual
stock compensation deductions are less than our previously recognized tax benefit in accordance with the Compensation-Stock CompensationTopic of the FASB Accounting Standards Codification (ASC Topic 718).

Critical Accounting Estimates and Recently Issued Accounting Standards

The preparation of financial statements in accordance with GAAP requires our management to select and apply accounting policies that best
provide the framework to report the results of operations and financial position. The selection and application of those policies requires management to make difficult, subjective and/or complex judgments concerning reported amounts of revenue and
expenses during the reporting period and the reported amounts of assets and liabilities at the date of the financial statements. As a result, there exists the likelihood that materially different amounts would be reported under different conditions
or using different assumptions.

As of March 31, 2010, there have been no significant changes with regard to the critical
accounting policies disclosed in our Annual Report on Form 10-K for the year ended December 31, 2009. The policies disclosed included contingencies, accounting for long-lived assets, stock-based compensation, income taxes and derivative
accounting.

See Note 1Summary of Significant Accounting PoliciesRecently Issued Accounting Standards
to the condensed consolidated financial statements included in Item 1 of this report for additional information regarding recently adopted and new accounting pronouncements.



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##### Table of Contents

Results of Operations

The following table sets forth selected consolidated statements of operations data for each of the periods indicated as a percentage of
service revenue:



|                                         |  |                             |   |  |      |  
|---------------------------------------- |  | --------------------------- | - |  | ---- | -
|                                         |  | Three Months EndedMarch 31, |  
|                                         |  | 2010                        |   |  | 2009 |  
|Service revenue                          |  | 100                         | % |  | 100  | %
|Operating costs and expenses:            |  |                             |   |  |      |  
|Professional services                    |  | 48                          |   |  | 43   |  
|Sales, general and administrative        |  | 43                          |   |  | 38   |  
|Depreciation and amortization            |  | 8                           |   |  | 7    |  
|Goodwill and intangible asset impairment |  | 75                          |   |  | 177  |  
|                                         |  |                             |   |  |      |  
|Total operating costs and expenses       |  | 174                         |   |  | 265  |  
|                                         |  |                             |   |  |      |  
|Operating income (loss)                  |  | (74                         | ) |  | (165 | )
|Other income (expense):                  |  |                             |   |  |      |  
|Interest expense                         |  | (9                          | ) |  | (6   | )
|Interest income                          |  |                            |   |  |     |  
|Other, net                               |  |                            |   |  |     |  
|                                         |  |                             |   |  |      |  
|Total other income (expense)             |  | (9                          | ) |  | (6   | )
|                                         |  |                             |   |  |      |  
|Income (loss) before income taxes        |  | (83                         | ) |  | (171 | )
|Income tax expense (benefit)             |  | (30                         | ) |  | (35  | )
|                                         |  |                             |   |  |      |  
|Net income (loss)                        |  | (53                         | ) |  | (136 | )
|                                         |  |                             |   |  |      |  

Comparison of Three Months Ended March 31, 2010 and March 31, 2009

Service Revenue



|                |  |                             |        |        |   |            |  |   |            |   |  |    |    
|--------------- |  | --------------------------- | ------ | ------ | - | ---------- |  | - | ---------- | - |  | -- | ---
|                |  | Three Months EndedMarch 31, |        | Change |  
|                |  | (Dollars in thousands)      |       
|                |  | 2010                        |        | 2009   |   | In Dollars |  |   | Percentage |  
|Service revenue |  | $                           | 36,548 |        | $ | 38,798     |  | $ | (2,250     | ) |  | (6 | ) %

Service
revenue for the three months ended March 31, 2010 decreased by $2.2 million compared to the three months ended March 31, 2009. The decrease in service revenue primarily consists of a drop of $2.6 million in preliminary read revenue and a
decrease of $0.3 million in business service revenue, partially offset by an increase of $0.7 million in final read revenue.

The preliminary read revenue decrease was primarily driven by a 10% decline in our average price from the same period in 2009. Partially
offsetting this price decline was a 1% increase in preliminary read volume, consisting of same site volume growth of 3% and new customer volumes of 7%, partially offset by a 9% decrease in volumes from the cumulative impact of customers lost over
the past 12 months.

The final read revenue increase was primarily driven by a 43% increase in volume partially offset by a
20% decline in average pricing compared to the same period a year ago. Final read volume growth consisted of new customer growth of 64% offset by a 21% decrease in volumes from the impact of customers lost over the past 12 months. The 20% decline in
final read pricing was driven by a mix shift towards lower priced plain film reads and competitive pressures in the marketplace.



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##### Table of Contents

Operating Costs and Expenses

Professional Services



|                              |  |                             |        |   |        |   |        |            |  |            |     |  |   |  
|----------------------------- |  | --------------------------- | ------ | - | ------ | - | ------ | ---------- |  | ---------- | --- |  | - | -
|                              |  | Three Months EndedMarch 31, |        |   | Change |  
|                              |  | (Dollars in thousands)      |       
|                              |  | 2010                        |        |   | 2009   |   |        | In Dollars |  | Percentage |    
|Professional services         |  | $                           | 17,464 |   |        | $ | 16,656 |            |  | $          | 808 |  | 5 | %
|Percentage of service revenue |  |                             | 48     | % |        |   | 43     | %          |  |            |     |  |   |  

The increase in professional services expense for three months ended March 31, 2010 compared
to the three months ended March 31, 2009 is primarily attributable to a 6% increase in volumes. This was partially offset by a $0.7 million decrease in medical liability expenses. The increase in professional services expense as a percentage of
revenue resulted from a combination of the increase in professional services fees coupled with an overall 11% decline in our average price per scan.

Sales, General and Administrative Expense



|                                          |  |                             |        |   |        |   |        |            |  |            |       |  |   |  
|----------------------------------------- |  | --------------------------- | ------ | - | ------ | - | ------ | ---------- |  | ---------- | ----- |  | - | -
|                                          |  | Three Months EndedMarch 31, |        |   | Change |  
|                                          |  | (Dollars in thousands)      |       
|                                          |  | 2010                        |        |   | 2009   |   |        | In Dollars |  | Percentage |      
|Sales, general and administrative expense |  | $                           | 15,761 |   |        | $ | 14,734 |            |  | $          | 1,027 |  | 7 | %
|Percentage of service revenue             |  |                             | 43     | % |        |   | 38     | %          |  |            |       |  |   |  

The sales, general and administrative expense for the three months ended March 31, 2010 was
$1.0 million higher than in the comparable period in 2009. This was primarily attributable to higher payroll and accrued severance of $0.4 million relating to the departure of our former chief operating officer in February 2010. In addition, we saw
higher legal costs related to the legal matters described in Part IIItem 1Legal Proceedings. These increases were partially offset by lower stock compensation expense.

Intangible Asset Impairment

Our intangible assets include those acquired as part of our July 2007 acquisition of Midwest Physician Services, LLC and Emergency
Radiology Services, LLC from St. Paul Radiology, P.A and the related agreements entered into between us and St. Paul Radiology, P.A. As a result of the ongoing settlement negotiations described in this report, we have determined that an impairment
indicator is present related to the professional services and noncompete agreements we entered into with and trademarks acquired from, St. Paul Radiology, P.A. We have concluded that $27.3 million of the $49.6 million carrying value of these
intangible assets is impaired. As a result, we recorded a non-cash intangible impairment charge of $27.3 million in the three months ended March 31, 2010. We will continue to assess whether impairment indicators are present or expected cash
flows change and, if so, perform impairment testing to determine the fair value of these recorded assets. See Recent Developments  Potential Resolution of Dispute with St. Paul Radiology, P.A. and Related Transaction for more
information.

Goodwill Impairment

We recorded a $68.7 million goodwill impairment charge during the quarter ended March 31, 2009 due to our determination that the fair
value of goodwill was less than the carrying value. The goodwill impairment charge was non-cash and did not affect our operations, cash flow or cash position.

Interest Expense



|                              |  |                             |       |   |        |   |       |            |  |            |       |  |    |  
|----------------------------- |  | --------------------------- | ----- | - | ------ | - | ----- | ---------- |  | ---------- | ----- |  | -- | -
|                              |  | Three Months EndedMarch 31, |       |   | Change |  
|                              |  | (Dollars in thousands)      |      
|                              |  | 2010                        |       |   | 2009   |   |       | In Dollars |  | Percentage |      
|Interest expense              |  | $                           | 3,324 |   |        | $ | 2,302 |            |  | $          | 1,022 |  | 44 | %
|Percentage of service revenue |  |                             | 9     | % |        |   | 6     | %          |  |            |       |  |    |  

The increase in interest expense for the three months ended March 31, 2010 compared to the
three months ended March 31, 2009 is primarily attributable to the discontinuation of hedge accounting for our interest rate swap contracts effective January 1, 2010. As a result, the year-to-date change in the fair value of the
ineffective hedges of $1.5 million was recorded to interest expense.



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Income Tax Expense (Benefit)



|                             |  |                             |         |   |        |   |         |            |  |            |       |  |    |  
|---------------------------- |  | --------------------------- | ------- | - | ------ | - | ------- | ---------- |  | ---------- | ----- |  | -- | -
|                             |  | Three Months EndedMarch 31, |         |   | Change |  
|                             |  | (Dollars in thousands)      |        
|                             |  | 2010                        |         |   | 2009   |   |         | In Dollars |  | Percentage |      
|Income tax expense (benefit) |  | $                           | (10,879 | ) |        | $ | (13,732 | )          |  | $          | 2,853 |  | 21 | %

The change in
our income tax expense was due primarily to the tax benefit resulting from the goodwill impairment charge recorded during the three months ended March 31, 2009. We recorded a non-cash goodwill impairment charge of $68.7 million in the three
months ended March 31, 2009 of which $30.9 million of that impairment is not deductible for tax purposes, resulting in an effective tax rate different than the statutory rate. The income tax benefit for the three months ended March 31,
2010 primarily reflects the after-tax effect of the intangible impairment charge of $16.9 million.

Non-GAAP Financial
Performance Measures

Historically, we have provided non-GAAP financial measures of adjusted net income and adjusted
earnings per share as part of our periodic earnings releases and investor conference calls. Beginning with this quarterly report, we will begin including the reconciliation of these non-GAAP measures to the most applicable financial measure under
GAAP.

We present these non-GAAP financial measures because we believe that they are a useful indicator of our performance and
ongoing operations, provide consistency and comparability with our past financial performance and facilitates investor comparisons of our operating performance with our peer companies. However, it is important to note that the presentation of
adjusted net income and adjusted earnings per diluted share are not measures of financial performance under GAAP and should not be considered a substitute for or superior to GAAP. The non-GAAP financial measures we report are as follows:

Adjusted net income  We define adjusted net income as net income excluding the tax effected impact of (i) the non-cash
expense related to our stock-based compensation, (ii) the non-cash expense associated with the amortization of intangibles associated with acquisitions, (iii) the non-cash expenses (or credits) for adjustments to our IBNR reserve (incurred
but not reported medical liability reserves), (iv) the non-cash effects of cancelled and ineffective interest rate swap contracts, (v) severance expense, (vi) the non-cash charges for goodwill or intangible asset impairments and
(vii) other expenses from time to time. These other expenses may occur in future periods, but the amounts recognized can vary from period to period and do not directly relate to our ongoing operations.

Adjusted diluted earnings per share  We define adjusted diluted earnings per share in the same manner as adjusted net
income.

The following table reconciles net income (loss), the most directly comparable GAAP financial performance measure, to
adjusted net income, a non-GAAP financial performance measure:



|                                                                 |  |                             |         |   |      |   |         |  
|---------------------------------------------------------------- |  | --------------------------- | ------- | - | ---- | - | ------- | -
|                                                                 |  | Three Months EndedMarch 31, |        
|                                                                 |  | (In thousands)              |        
|                                                                 |  | 2010                        |         |   | 2009 |  
|Net income (loss)                                                |  | $                           | (19,195 | ) |      | $ | (52,613 | )
|Tax effected impact of:                                          |  |                             |         |   |      |   |         |  
|Non-cash stock based compensation                                |  |                             | 868     |   |      |   | 710     |  
|Amortization of intangible assets                                |  |                             | 1,050   |   |      |   | 1,260   |  
|IBNR medical malpractice loss reserves                           |  |                             |        |   |      |   | 282     |  
|Effect of cancelled and ineffective interest rate swap contracts |  |                             | 1,286   |   |      |   | 597     |  
|Intangible asset and goodwill impairment                         |  |                             | 16,926  |   |      |   | 53,761  |  
|Severance costs                                                  |  |                             | 270     |   |      |   |        |  
|                                                                 |  |                             |         |   |      |   |         |  
|Adjusted net income                                              |  | $                           | 1,205   |   |      | $ | 3,997   |  
|                                                                 |  |                             |         |   |      |   |         |  



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##### Table of Contents

During the three months ended March 31, 2010, our adjusted net income decreased $2.8
million year over year primarily due to the effects of lower average prices and higher sales general and administrative expense, offset partially by increased volumes. We expect these trends to continue in future periods.

The following table reconciles earnings (loss) per diluted share, the most directly comparable GAAP financial performance measure, to
adjusted net income per diluted share, a non-GAAP financial performance measure:



|                                                                 |  |                             |       |   |      |   |       |  
|---------------------------------------------------------------- |  | --------------------------- | ----- | - | ---- | - | ----- | -
|                                                                 |  | Three Months EndedMarch 31, |      
|                                                                 |  | (In thousands)              |      
|                                                                 |  | 2010                        |       |   | 2009 |  
|Earnings (loss) per diluted share                                |  | $                           | (0.81 | ) |      | $ | (1.97 | )
|Tax effected impact of:                                          |  |                             |       |   |      |   |       |  
|Non-cash stock based compensation                                |  |                             | 0.04  |   |      |   | 0.02  |  
|Amortization of intangible assets                                |  |                             | 0.04  |   |      |   | 0.05  |  
|IBNR medical malpractice loss reserves                           |  |                             | 0.00  |   |      |   | 0.01  |  
|Effect of cancelled and ineffective interest rate swap contracts |  |                             | 0.05  |   |      |   | 0.02  |  
|Intangible asset and goodwill impairment                         |  |                             | 0.72  |   |      |   | 2.02  |  
|Severance cost                                                   |  |                             | 0.01  |   |      |   | 0.00  |  
|                                                                 |  |                             |       |   |      |   |       |  
|Adjusted net income per diluted share                            |  | $                           | 0.05  |   |      | $ | 0.15  |  
|                                                                 |  |                             |       |   |      |   |       |  

During the three months ended March 31, 2010, our adjusted net income per diluted share was $0.05
compared to $0.15 in the year ago period. The decline was driven by the decrease in adjusted net income.

Liquidity and
Capital Resources

Capital Resources

Our capital resources include cash, cash equivalents and marketable securities. The table below highlights significant aspects of our
capital resources.



|                          |  |                |      |                   |   |     
|------------------------- |  | -------------- | ---- | ----------------- | - | ----
|                          |  | March 31, 2010 |      | December 31, 2009
|                          |  | (In millions) 
|Capital resources         |  |                |      |                   |   |     
|Cash and cash equivalents |  | $              | 33.9 |                   | $ | 26.3
|Marketable securities     |  |                |     |                   |   | 6.0 
|                          |  |                |      |                   |   |     
|Total                     |  | $              | 33.9 |                   | $ | 32.3
|                          |  |                |      |                   |   |     

Cash Flow Activities

The table and discussion below highlights significant aspects of our cash flow activities.



|                                                 |  |                             |      |   |      |   |      |  
|------------------------------------------------ |  | --------------------------- | ---- | - | ---- | - | ---- | -
|                                                 |  | Three Months EndedMarch 31, |     
|                                                 |  | (In millions)               |     
|                                                 |  | 2010                        |      |   | 2009 |  
|Cash flow activities                             |  |                             |      |   |      |   |      |  
|Net cash provided by (used in):                  |  |                             |      |   |      |   |      |  
|Operating activities                             |  | $                           | 2.7  |   |      | $ | 6.2  |  
|Investing activities                             |  |                             | 5.1  |   |      |   | (6.1 | )
|Financing activities                             |  |                             | (0.2 | ) |      |   | (6.7 | )
|                                                 |  |                             |      |   |      |   |      |  
|Increase (decrease) in cash and cash equivalents |  | $                           | 7.6  |   |      | $ | (6.6 | )
|                                                 |  |                             |      |   |      |   |      |  



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##### Table of Contents

Operating Activities

We fund our operations primarily from cash flows generated by our operating activities and the incurrence of debt. Net cash provided by
operating activities for the three months ended March 31, 2010 and 2009 was $2.7 million and $6.2 million, respectively, a decrease of $3.5 million. The decrease in net cash from operations from the same quarter a year ago primarily
resulted from the revenue and earnings decline.

Investing Activities

Net cash flows provided by investing activities were $5.1 million for three months ended March 31, 2010, compared with $6.1 million
used in investing activities for the three months ended March 31, 2009. The increase in net cash from investing activities compared to the same quarter a year ago primarily reflects $6.0 million in proceeds from maturities of marketable
securities in the first quarter of 2010, compared to $5.0 million in purchases of marketable securities during the first quarter of 2009. During the first quarter of 2010, U.S. Treasuries held matured and we chose not to repurchase those securities
but rather placed the funds into a money market account.

Financing Activities

Net cash used in financing activities was $0.2 million for the three months ended March 31, 2010, compared with $6.7 million for the
three months ended March 31, 2009. The decrease in net cash used in financing activities compared to the same quarter a year ago primarily reflects the repurchase of shares of our common stock in the first quarter of 2009 for $6.5 million,
whereas during the first quarter of 2010, we had no such repurchases.

Financial Condition and Liquidity

We expect our short and long-term liquidity needs to consist primarily of working capital, capital expenditures related to information
technology and any future acquisitions. We may also have liquidity needs if we elect to repurchase shares of our common stock and if we elect or are required to make principal payments under our credit agreement. We intend to fund future
liquidity needs from current capital resources and cash generated from operations. We believe our capital resources will be sufficient to meet our anticipated cash needs for at least the next 12 months.

Our credit agreement contains customary affirmative, negative and financial covenants, including, among other requirements, negative
covenants that restrict our ability to create liens, enter into mergers and acquisitions, pay dividends, repurchase stock, incur indebtedness, make investments and make capital expenditures, and financial covenants that limit the maximum leverage we
can maintain at any one time. Our term loan is subject to mandatory repayment under certain circumstances, including in connection with our receipt of proceeds from certain issuances of equity or debt, sales of assets and casualty events. In
addition, our credit agreement requires a principal payment in the amount equal to 50% of our Excess Cash Flow (as defined in our credit agreement) if the Total Leverage Ratio (as defined in our credit agreement) is at or above 2.5 at year end.
Furthermore, if our Total Leverage Ratio exceeds 4.0 on any trailing four quarter basis, our obligation to repay all borrowings could be accelerated. As of March 31, 2010, our Total Leverage Ratio was 2.73. As of March 31, 2010 we
were in compliance with all covenants contained in our credit agreement and expect to remain in compliance with these covenants throughout 2010.

As described more fully above under Recent DevelopmentsPotential Resolution of Dispute with St. Paul Radiology, P.A. and
Related Transaction, pursuant to the consent we have received from our lenders, if the transactions with and related to St. Paul Radiology are consummated, we intend to pay to the lenders essentially all of the proceeds and tax refunds we
generate from the proposed transactions, amounting to an aggregate of $36 million in principal repayments, with $26 million to be paid following the closing of the transaction and an additional $10 million to be paid to the lenders on or before
June 30, 2011. We expect to fund such principal repayments out of available cash and investments and from payments received as part of the transactions.

If the transactions are consummated and we no longer receive the benefit of this revenue and related profits, our Total Leverage Ratio
under our credit agreement will increase. Pursuant to the terms of our credit agreement, we are required to calculate our Total Leverage Ratio on a pro forma basis, meaning that if the transaction described above is consummated, we must calculate
our Total Leverage Ratio assuming the transactions took place at the beginning of the trailing four quarter measurement period. As a result, even with the principal payments described above, we expect our Total Leverage Ratio in future periods to
increase.

Finally, we may elect from time to time to make additional principal payments on our debt in order to enhance our
capital structure as we did in 2008 and 2009. We anticipate funding any such elective or required principal payments out of our available cash and cash equivalents. However, if our estimates of revenues, working capital and/or capital expenditure
requests change or prove inaccurate, we may need to raise additional funds to satisfy any required principal repayment. There can be no assurance that any such funds will be available at the time or times needed or available on terms acceptable to
us. See Part IIItem 1ARisk FactorsWe may need additional capital, which may not be available to us.



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Off-Balance Sheet Arrangements and Contractual Obligations

There have been no significant changes to our off-balance sheet arrangements or contractual obligations table as disclosed in our Annual
Report on Form 10-K for the year ended December 31, 2009.



|ITEM 3. | Quantitative and Qualitative Disclosures About Market Risk
|------- | ----------------------------------------------------------

Foreign Currency Exchange Risk

During the periods covered by this quarterly report, substantially all of our customers are in the United States and thus revenue is
denominated in U.S. dollars. Although some of our affiliated radiologists work from our centralized reading facilities in Australia and Switzerland, the professional service fees we pay to our affiliated radiologists are denominated primarily in
U.S. dollars. As a result, only our support personnel and facility costs in those countries present foreign currency exchange risks. Because we are not currently subject to material foreign currency exchange risk, we have not, to date, entered into
any foreign exchange hedging contracts. If a weakening U.S. dollar requires us to increase the amounts we pay to our affiliated radiologists in the future in order to maintain a constant level of compensation, our results of operations and cash
flows could be affected. Currently, any foreign exchange risks are related to the foreign currency exchange rates between the U.S. dollar and the Australian dollar and between the U.S. dollar and the Swiss franc.

Interest Rate Sensitivity

As of March 31, 2010, we had cash and cash equivalents totaling $33.9 million. The majority of these amounts was invested in
interest-bearing money market accounts and is held for working capital purposes. We had no marketable securities outstanding as of March 31, 2010.We do not enter into investments for trading or speculative purposes.

As of March 31, 2010, we had $78.0 million in variable rate debt. Because of the five interest rate swap contracts entered into
during the fourth quarter of 2008, this outstanding debt is not subject to interest rate fluctuation until such contracts expire on June 30, 2014. While in effect, these interest rate swap contracts will maintain an effective interest rate on
our outstanding debt of approximately 4.95%. The contracts were initiated to maintain compliance with debt requirements and to protect us against changes in the interest payments associated with its variable-rate long-term debt, and therefore are
considered cash flow hedges. As a result, as long as the swap contracts are deemed highly effective, changes in the fair value of the swap contracts are recorded as either an asset (a gain position), or a liability (a loss position) on the balance
sheet, with the offset recorded in accumulated other comprehensive income, a separate component of stockholders equity.

During 2009 we determined that two of the five interest rate swap contracts were not effective. As a result, changes in the fair value of
these ineffective contracts were recorded as a component of interest expense in our statement of operations in 2009 and in the first quarter of 2010.

As discussed more fully in Note 9Derivative Financial Instruments, as a result of the proposed transaction with St.
Paul Radiology and our associated plans to make the principal repayments described above (even though such arrangements are not yet final and remain subject to change), we have determined that the three remaining effective interest rate swap
contracts no longer meet the criteria for treatment as cash flow hedges under the guidance of ASC Topic 815 and related interpretations. As a result, we have prospectively discontinued cash flow hedge accounting for these interest rate swap
contracts as of January 1, 2010. Changes in the fair value of these interest rate swap contracts subsequent to January 1, 2010 have been recorded as a component of interest expense in our statement of operations in the first quarter of
2010 and will be on a prospective basis.

For more information on our interest rate hedging activities, see Note
9Derivative Financial Instruments, included in Part I Item 1 of this report.



|ITEM 4. | Controls and Procedures
|------- | -----------------------

Evaluation of Disclosure Controls and Procedures

As of March 31, 2010, we carried out an evaluation, under the supervision and with the participation of management, including our
Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934). Based upon
that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that as of March 31, 2010, our disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934) were effective.



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Changes in Internal Control over Financial Reporting

During the three months ended March 31, 2010, there were no changes in our internal control over financial reporting that have
materially affected or are reasonably likely to materially affect such internal control over financial reporting.

PART II  OTHER INFORMATION



|ITEM 1. | Legal Proceedings
|------- | -----------------

We are
involved in various legal proceedings arising in the ordinary course of our business activities. We maintain insurance policies with coverages that we believe are appropriate in light of the risks attendant to our business, and believe that the
resolution of the current claims will not have a material adverse impact on our consolidated results of operations, cash flows or our financial position. However, depending on the amount of damages resulting from a current or future claim, an
unfavorable resolution of a claim could materially affect our future results of operations, cash flows or financial position.

In addition to the litigation matters in which we are involved in the ordinary course of business, during the third quarter of 2009, we
received a notice from St. Paul Radiology, P.A. in which St. Paul Radiology, P.A. indicated that it believes that we are in breach of certain of our obligations under our agreements with it. We believe such claims are without merit and that we have
fulfilled all of our obligations under the agreements. However, if such claims are demonstrated to be true and the dispute resolution process is unsuccessful, we may be required to remedy the alleged breach, pay damages, or both. Also, if
it is determined that there is not an available remedy under the terms of the agreements, St. Paul Radiology, P.A. may be allowed to terminate its agreements with us. Although we believe the chances of such outcomes are remote, there is always
inherent uncertainty of any litigation or arbitration proceeding.

In recent weeks, as a result of continued discussions
between us and St. Paul Radiology, the parties have made substantial progress toward achieving a negotiated resolution to this dispute and reaching a mutually-acceptable dissolution of the original arrangement between the parties. Although such
resolution remains subject to continued negotiation of final terms and definitive agreements, as part of the potential transaction, the parties would terminate their existing relationships and unwind the July 2007 transaction. We would receive an
up-front payment from St. Paul Radiology of $10 million and ongoing periodic payments totaling $14 million, resulting in an aggregate amount paid by St. Paul Radiology to us of $24 million. In addition, concurrently with the termination of the
agreements with St. Paul Radiology, we would also enter into a separate agreement pursuant to which we would sell each of Midwest Physician Services, LLC and Emergency Radiology Services, LLC and their related assets for an aggregate consideration
of $2 million payable to us upon closing. Settlement negotiations are not complete and the parties may not be able to negotiate a resolution. If a settlement is negotiated, it may be on terms different than those currently contemplated. See
Part IItem 2Managements Discussion and Analysis of Financial Condition and Results of OperationsRecent Developments  Potential Resolution of Dispute with St. Paul Radiology, P.A. and Related Transaction for
more information.

In our Annual Report on Form 10-K, we reported that, on December 17, 2009, a putative shareholder
class action lawsuit was filed against us and certain of our former officers in the U.S. District Court for the District of Idaho. The case is captioned City of Marysville General Employees Retirement System v. NightHawk Radiology Holdings,
Inc., et al., Case No. CIV 09-659-N-CWD. The complaint purports to be brought on behalf of a class of persons who purchased or otherwise acquired our stock during the period April 10, 2007 to February 13, 2008, and asserts
claims under Section 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended, and Rule 10b-5 promulgated thereunder. Plaintiffs contend that the Company and the individual defendants violated the federal securities laws by issuing
false and misleading statements concerning the Companys operations, business, and prospects during the purported class period, and thereby artificially increased the price of the Companys stock. Plaintiffs seek unspecified compensatory
damages, interest, and attorneys fees and costs. On April 29, 2010, the court issued an order appointing Plymouth County Contributory Retirement System (Plymouth) as lead plaintiff, and approving Plymouths selection of
the law firms Scott + Scott LLP and Holland & Hart LLP as co-lead counsel. The court also ordered the parties to submit a proposed case scheduling order by May 14, 2010. Management intends to vigorously defend against these claims.



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|ITEM 1A. | Risk Factors
|-------- | ------------

YOU
SHOULD CAREFULLY CONSIDER THE RISKS DESCRIBED BELOW BEFORE MAKING AN INVESTMENT DECISION. OUR BUSINESS, PROSPECTS, FINANCIAL CONDITION OR OPERATING RESULTS COULD BE MATERIALLY ADVERSELY AFFECTED BY ANY OF THESE RISKS. THE TRADING PRICE OF OUR COMMON
STOCK COULD DECLINE DUE TO ANY OF THESE RISKS AND YOU MAY LOSE ALL OR PART OF YOUR INVESTMENT. IN ASSESSING THE RISKS DESCRIBED BELOW, YOU SHOULD ALSO REFER TO THE OTHER INFORMATION CONTAINED IN THIS REPORT, INCLUDING OUR CONSOLIDATED FINANCIAL
STATEMENTS AND THE RELATED NOTES, BEFORE DECIDING TO PURCHASE ANY SHARES OF OUR COMMON STOCK.

We operate in a
rapidly evolving market, which makes it difficult to evaluate our business and prospects.

Our industry is relatively
new and is rapidly evolving. As a result, our current business and future prospects are difficult to evaluate. You must consider our business and prospects in light of the risks and difficulties we encounter as an early leader in a rapidly evolving
market. Some of these risks relate to our potential inability to:



| |  |  | effectively manage our business and technology,
| | - |  | -----------------------------------------------



| |  |  | effectively manage our operating costs as the price for our services declines,
| | - |  | ------------------------------------------------------------------------------



| |  |  | continue to provide consistently high levels of service quality as we expand the scale of our business,
| | - |  | -------------------------------------------------------------------------------------------------------



| |  |  | develop new services that complement our existing business,
| | - |  | -----------------------------------------------------------



| |  |  | acquire additional customers and maintain current customers in a highly competitive environment,
| | - |  | ------------------------------------------------------------------------------------------------



| |  |  | market our services to our customers due to regulatory rules governing reassignment of payments, which could affect our customers ability to
collect fees for services provided by our affiliated radiologists,
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | effectively manage the integration of companies that we may acquire in the future,
| | - |  | ----------------------------------------------------------------------------------



| |  |  | manage growth in personnel and operations,
| | - |  | ------------------------------------------



| |  |  | effectively manage our medical liability risk, and
| | - |  | --------------------------------------------------



| |  |  | recruit and retain radiologists and other key personnel.
| | - |  | --------------------------------------------------------

We may not be able to successfully address these and the other risks described in this report. Failure to adequately do so would harm our
business and cause our operating results to suffer. Furthermore, our early operating history resulted in historical revenue growth rates that we will likely not be able to repeat, and therefore will not be indicative of our future results of
operations. As a result, the price of our common stock could decline.

The market in which we participate is competitive
and we expect competition to increase in the future, which will make it more difficult for us to sell our services and has resulted and may continue to result in pricing pressure, reduced revenue and reduced market share.

The market for professional radiology services and business process services is competitive and rapidly changing, barriers to entry are
relatively low, and with the introduction of new technologies and market entrants, we expect competition to continue to intensify in the future. In fact, in recent periods we have experienced an increase in competition from regional providers of
services similar to ours. If we fail to compete effectively, our operating results will be harmed. Some of our principal competitors, including our largest competitor, Virtual Radiologic Corporation( VRC), offer their services at a lower
price, which has resulted and may continue to result in pricing pressure and lost customers. If we are unable to maintain our current pricing or effectively revise the way we compensate our affiliated radiologists, our operating results would be
negatively impacted. In addition, pricing pressures and increased competition would result in reduced revenue and reduced profits.

In addition, if companies larger than us enter the market through internal expansion or acquisition of one of our competitors, the change
in the competitive landscape could adversely affect our ability to compete effectively. These competitors could have established customer relationships and greater financial, technical, sales, marketing and other resources than we do, and may be
able to respond more quickly to new or emerging technologies or devote greater resources to the development, promotion and sale of their services. This competition could harm our ability to sell our services, which may lead to lower prices, reduced
revenue and, ultimately, reduced market share.

We may be unable to successfully expand our services beyond the
off-hours emergency radiology market.

A key part of our strategy to offset the moderation of growth in our provision
of preliminary reads involves providing final reads and sub-specialty services; however, our efforts to provide these final reads and sub-specialty services, or any other services beyond our current services offerings and radiology solutions, may
not result in significant revenue growth for us. The markets for final and sub-specialty reads are more complex than the market for preliminary reads. If we are to be successful in these markets, we will be



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required to develop, execute and maintain new sales and marketing efforts, as well as new information technology capabilities. In addition, our final and sub-specialty service offering requires
our customers to navigate the billing and collecting rules related to the reads our affiliated physicians provideincluding the billing reassignment rules and the rules regarding where to bill for such servicesrules that are often
cumbersome and difficult for our customers. As a result, our efforts to expand our services into these new markets may divert management resources from existing operations and require us to commit significant financial resources to an unproven
business. If we are unable to effectively address the challenges that these new service offerings present, our business, financial condition and results of operations could be adversely affected.

If our customers perceive that we are offering services that are competitive to theirs, some of our customers may terminate their
agreements with us, which could adversely affect our business, financial condition and results of operation.

Historically, some radiology groups have been concerned that teleradiology companies may potentially become competitive with them for
their business. Our core mission has always been to work with and to support our radiology group customers and we are committed to acting consistently with our mission of supporting our radiology group customers and not competing with them. Despite
this, as the largest teleradiology company in the industry, we are particularly vulnerable to the potential that there could be speculation or misperception by some radiology groups that we may become competitive with their business, which may
result in some customers choosing to discontinue doing business with us. If this were to occur, our business, financial condition and results of operations could be adversely affected.

If our arrangements with our affiliated radiologists or our customers are found to violate state laws prohibiting the corporate
practice of medicine or fee splitting, our business, financial condition and our ability to operate in those states could be adversely impacted.

The laws of many states, including states in which our customers are located, prohibit us from exercising control over the medical
judgments or decisions of physicians and from engaging in certain financial arrangements, such as splitting professional fees with physicians. These laws and their interpretations vary from state to state and are enforced by state courts and
regulatory authorities, each with broad discretion. We enter into agreements with our affiliated radiologists pursuant to which the radiologists render professional medical services using their independent judgment and discretion with no influence
by NightHawk. In addition, we enter into agreements with our customers to deliver professional radiology interpretation services in exchange for a service fee. We structure our relationships with our affiliated radiologists and our customers in a
manner that we believe is in compliance with prohibitions against the corporate practice of medicine and fee splitting. If any state regulatory or similar authority determines that we are engaged in the corporate practice of medicine or that the
payment of service fees to us by our customers constitutes fee splitting, we could be subject to civil and criminal penalties and could be required to restructure or terminate the applicable contractual arrangements. A determination that these
arrangements violate state statutes, or our inability to successfully restructure our relationships with our affiliated radiologists to comply with these statutes, could eliminate customers located in certain states from the market for our services,
which would have a materially adverse effect on our business, financial condition and operations.

Our growth strategy
depends on our ability to recruit and retain qualified radiologists. If we are unable to do so, our future growth would be limited and our business and operating results would be harmed.

Our success is dependent upon our continuing ability to recruit and retain qualified radiologists. An inability to recruit and retain
radiologists would have a material adverse effect on our ability to service our customers and grow our revenues and would adversely affect our results of operations. We face competition for radiologists from other healthcare providers, including
radiology groups, teleradiology companies, research and academic institutions, government entities and other organizations. If we are unable to effectively recruit and retain qualified radiologists, our business, financial condition and results of
operations could be adversely affected.

If our affiliated radiologists are characterized as employees, we would be
subject to employment and withholding liabilities and may be subject to prohibitions against the corporate practice of medicine.

We structure our relationships with our affiliated radiologists in a manner that we believe results in an independent contractor
relationship, not an employee relationship. An independent contractor is generally distinguished from an employee by his or her degree of autonomy and independence in providing services. A high degree of autonomy and independence is generally
indicative of a contractor relationship, while a high degree of control is generally indicative of an employment relationship. Although we believe that our affiliated radiologists are properly characterized as independent contractors, tax or other
regulatory authorities may in the future challenge our characterization of these relationships. If the Internal Revenue Service (IRS) (or other state, federal or foreign courts) were to determine that our affiliated radiologists are
employees, and not independent contractors, we would be required to withhold income taxes, to withhold and pay social security, Medicare and similar taxes and to pay unemployment and other related payroll taxes, would be liable for unpaid past taxes
by our affiliated radiologists and may be subject to penalties, all of which may materially harm our business and operating results. In connection with its audit of our tax filing for the 2006 tax year, the IRS reviewed our characterization of our
affiliated radiologists as independent contractors. As a result of that review, we received a letter on August 27,



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2009 stating that no changes to the tax as reported would be made and no further examination of this matter will be made by the IRS. However we cannot provide assurances that future audits would
be consistent with this conclusion. If, in the future, the IRS were to reach a different conclusion, we believe we could successfully modify our relationships with our affiliated radiologists to address such an outcome. However, if we were unable to
successfully implement this new relationship with our affiliated radiologists, our business and results of operations could be adversely affected.

If our customers terminate their agreements with us or if our customers businesses materially decline, our financial
condition and operating results could be adversely affected.

Our revenue is derived primarily from fee-for-service
billings to our radiology group customers. Our agreements with our customers generally provide for one-year terms and automatically renew for successive one-year terms unless terminated by our customers or us upon 30 days prior notice. Our customers
may elect not to renew their contracts with us, they may seek to renegotiate the terms of their contracts or they may choose to reduce or eliminate our services. For example, due to a number of competitive factors, we saw an 11% decrease in read
volumes that resulted from the cumulative impact of customers that we lost over the last 12 months. If our arrangements with our customers are canceled, or are not renewed or replaced with other arrangements having at least as favorable terms,
whether due to competitive factors or not, our business, financial condition and results of operations could be adversely affected. In addition, if our radiology group customers agreements with the hospitals that they serve are terminated, or
if our radiology group customers businesses begin to decline for other reasons (such as a material increase in the rate of uninsured patients or uncollectible accounts), our business, financial condition and results of operations could be
adversely affected.

Substantially all of our business services revenue is generated from St. Paul Radiology, P.A. under a
multiyear business services agreement. During the quarter ended March 31, 2010, we generated an aggregate of $5.1 million, or approximately 14% of our total revenue from our relationship and related agreements with St. Paul Radiology, P.A. If
the business of St. Paul Radiology, P.A. were to decline significantly (or terminate as described below) or if St. Paul Radiology, P.A. were to experience a material increase in uncollectible accounts, our business, financial condition and results
of operations would be adversely affected.

St. Paul Radiology, P.A. has indicated that it believes that we are in breach of
certain of our obligations under our agreements with it and that, as a result of such alleged breaches, it is entitled to terminate the agreements and it has incurred material damages which St. Paul Radiology, P.A. claims could exceed $70 million.
We believe such claims of breach and allegations of damages are without merit, that we have fulfilled all of our obligations under the agreements and that the agreements may not be terminated by St. Paul Radiology, P.A. However, there is always
inherent uncertainty of any litigation or arbitration proceeding. If such claims of breach and related damages are demonstrated to be true and the dispute resolution process does not achieve a result favorable to us, we may be required to remedy the
alleged breach, pay damages, and/or the agreements may be terminated resulting in the loss of the associated future revenue and profit.

In recent weeks, as a result of continued discussions between us and St. Paul Radiology, the parties have made substantial progress
toward achieving a negotiated resolution to this dispute and reaching a mutually-acceptable dissolution of the original arrangement between the parties. Although such resolution remains subject to continued negotiation of final terms and definitive
agreements, as part of the potential transaction, the parties would terminate their existing relationships and unwind the July 2007 transaction. We would receive an up-front payment from St. Paul Radiology of $10 million and ongoing periodic
payments totaling $14 million, resulting in an aggregate amount paid by St. Paul Radiology to us of $24 million. In addition, concurrently with the termination of the agreements with St. Paul Radiology, we would also enter into a separate agreement
pursuant to which we would sell each of Midwest Physician Services, LLC and Emergency Radiology Services, LLC and their related assets for an aggregate consideration of $2 million payable to us upon closing. See Part IItem
2Managements Discussion and Analysis of Financial Condition and Results of OperationsRecent Developments  Potential Resolution of Dispute with St. Paul Radiology, P.A. and Related Transaction. Settlement
negotiations are not complete and the parties may not be able to negotiate a resolution. If a settlement is negotiated, it may be on terms different than those currently contemplated.

Termination of our agreements with St. Paul Radiology, P.A. (whether through negotiated settlement or through an arbitration or
litigation process) or a reduction in the revenue and related profits received under the agreements would have a material adverse impact on our business, financial condition and results of operations. In addition, termination of our agreements with
St. Paul Radiology, P.A. (whether through negotiated settlement or through an arbitration or litigation process) or a reduction or termination in the revenue and related profits received under the agreements (whether through negotiated settlement or
through an arbitration or litigation process) could cause our total leverage ratio under our credit agreement to exceed 2.5, which in turn would trigger a mandatory principal repayment by us equal to 50% of our Excess Cash Flow for such year, or
4.0, which could result in the acceleration of our obligation to repay all of our borrowings under our credit agreement. See Part IItem 2Managements Discussion and Analysis of Financial Condition and Results of
OperationsLiquidity and Capital ResourcesFinancial Condition and Liquidity of this report for more information. If we fail to meet either of our total leverage ratio tests in the future, whether as a result of a termination of our
agreements with St. Paul Radiology, P.A. (whether through negotiated settlement or through an arbitration or litigation process) or otherwise, and we are required to make a mandatory repayment of a portion of the principal of our term loan, or
if our obligations under our term loan are accelerated as a result of our default, our financial condition could be materially adversely impacted.



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We have been subject to medical liability claims and may become subject to additional
claims or other harmful lawsuits, which could cause us to incur significant expenses and may require us to pay significant damages if not covered by insurance.

Our business entails the risk of medical liability claims against our affiliated radiologists and us. We or our affiliated radiologists
are subject to ongoing medical liability claims in the ordinary course of business. In addition, in some instances, these medical liability proceedings include allegations by plaintiffs that our business practices violate the appropriate standard of
care and that, as a result, a court should institute punitive damages against us. Although we maintain medical liability insurance for ourselves and our affiliated radiologists with coverage that we believe is appropriate in light of the risks
attendant to our business, successful medical liability claims could result in substantial damage awards which exceed the limits of our insurance coverage. In addition, medical liability insurance is expensive and insurance premiums may increase
significantly in the future, particularly as we continue to grow our final and sub-specialty services. As a result, adequate medical liability insurance may not be available to our affiliated radiologists or us in the future at acceptable costs or
at all.

Any claims made against us, including any claims that our business practices violate the standard of care, that are
not fully covered by insurance could be costly to defend against, result in substantial damage awards against us and divert the attention of our management and our affiliated radiologists from our operations, which could adversely affect our
operations and financial performance. In addition, any claims might adversely affect our business or reputation.

In addition
to medical liability claims, we may also become subject to other litigation proceedings that, if not fully covered by insurance, could be costly to defend against, result in substantial damage awards against us and divert the attention of our
management. For example, if our settlement efforts with St. Paul Radiology, P.A. are not successful and we revert back to a litigation proceeding, we will incur significant legal costs and may be required to remedy the alleged breach, pay damages,
or both. Although we believe the chances of an unsuccessful outcome from a litigation or arbitration proceedings are remote, there is always inherent uncertainty of any litigation or arbitration proceeding.

We indemnify our radiology group customers and hospital customers against damages or liabilities that they may incur as a result of the
actions of our affiliated radiologists or us. We also indemnify some of our affiliated radiologists against medical liability claims. Our indemnification obligations are typically payable only to the extent that damages incurred are not covered by
insurance.

We have also assumed and succeeded to substantially all of the obligations of the businesses that we have
acquired. Medical liability claims may be asserted against us for events that occurred prior to these acquisitions.

We are
also dependent upon the financial health of our medical liability insurance provider. Currently our medical malpractice provider is Chartis, Inc., an insurance subsidiary of American International Group (AIG). We believe Chartis is
adequately collateralized, however we cannot guarantee its financial health. Should AIG or Chartis not have the funds available to cover claims made against us or our radiologists, our business, the financial condition and results of operations
could be adversely affected.

If our security measures are breached and unauthorized access is obtained to patient or
customer data, we may face liabilities and our system may be perceived as not being secure, causing customers to curtail or stop using our services, which could lead to a decline in revenues.

We are required to implement administrative, physical and technological safeguards to ensure the security of the patient data that we
create, process or store. These safeguards may fail to ensure the security of patient or customer data, thereby subjecting us to liability, including civil monetary penalties and possible criminal penalties. If our security measures are breached,
whether as a result of third party action, employee error, malfeasance or otherwise, and, as a result, someone obtains unauthorized access to patient or customer data, our reputation will be damaged, our business may suffer and we could incur
significant liability. Because techniques used to obtain unauthorized access to systems change frequently and generally are not recognized until launched against a target, we may be unable to anticipate these techniques or to implement adequate
preventive measures.

Enforcement of federal and state laws regarding privacy and security of patient information may
adversely affect our business, financial condition or operations.

The use and disclosure of certain healthcare
information by healthcare providers and their business associates have come under increasing public scrutiny. The federal standards under HIPAA establish rules concerning how individually identifiable health information may be used, disclosed and
protected. Historically, state law has governed privacy issues and HIPAA preserves these laws to the extent they are more protective of a patients privacy or provide the patient with more access to his or her health information. As a result of
the implementation of the HIPAA privacy and security regulations, many states are considering revisions to their existing privacy, security and breach notification laws and regulations that may or may not be more stringent or burdensome than the
federal HIPAA privacy, security and breach notification provisions. In addition, the recently enacted HITECH Act now empowers state



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attorneys general to enforce HIPAAs privacy and security provisions, including the new federal breach notification requirements. We must operate our business in a manner that complies with
all applicable laws, both federal and state, and which does not jeopardize the ability of our customers to comply with all applicable laws to which they are subject. We believe that our operations are consistent with these legal standards.
Nevertheless, these laws and regulations present risks for healthcare providers and their business associates that provide services to patients in multiple states. Because these laws and regulations are recent and few have been interpreted by
government regulators or courts, our interpretations and activities may be challenged. If a challenge to our activities is successful, it could have an adverse effect on our operations. In addition, even if our interpretations of HIPAA and other
federal and state laws and regulations are correct, we could be held liable for unauthorized uses or disclosures of patient information as a result of inadequate systems and controls to protect this information or due to the theft of information by
unauthorized computer programmers who penetrate our network security. Lastly, new legislation to broaden privacy and security rules has been introduced in Congress and in numerous states which may require that we change our operations.

Recently-enacted or future changes in healthcare regulation may constrain or require us to restructure our operations, which could
negatively impact our business and operating results.

The healthcare industry is heavily regulated and has recently
been the subject of significant legislative action. Our ability to operate profitably will depend in part upon our ability (and that of our affiliated radiologists, our customers and their radiologists) to continue to operate effectively in the new
health care environment. With the changes enacted by the recently-passed Patient Protection and Affordable Care Act, we believe that there will be continued pressure on the overall imaging market and our customers by, among other things, a potential
reduction in the growth in, or overall number of, diagnostic imaging procedures performed, and a reduction in the payments to radiology groups and facilities for both the technical component and professional component of such procedures. Any
reduction in demand for diagnostic imaging, as well as reduced reimbursement to groups and facilities that utilize our services could in turn adversely affect our business.

Our business could also be adversely affected by regulatory changes at the federal or state level that impose new requirements for
licensing, new restrictions on reimbursement for medical services by government programs, new pretreatment certification requirements for patients seeking radiology procedures, or new limitations on services that can be performed by us. In addition,
federal, state and local legislative bodies have adopted and continue to consider medical cost containment legislation and regulations that have restricted or may restrict reimbursement to entities providing services in the healthcare industry and
referrals by physicians to entities in which the physicians have a direct or indirect financial interest or other relationship. For example, Medicare has adopted a regulation that limits reimbursement for the technical component when multiple
diagnostic tests are performed during a single session at medical facilities other than hospitals. Any of these or future reimbursement regulations or policies could limit the number of diagnostic tests our customers order and could have a material
adverse effect on our business.

Although we monitor legal and regulatory developments and modify our operations from time to
time as the regulatory environment changes, we may not be able to adapt our operations to address every new regulation, and such regulations may adversely affect our business. In addition, although we believe that we are operating in compliance with
applicable federal and state laws, our business operations have not been scrutinized or assessed by judicial or regulatory agencies. We cannot assure you that a review of our business by courts or regulatory authorities would not result in a
determination that adversely affects our operations or that the healthcare regulatory environment will not change in a way that will restrict our operations.

Our business could be materially affected if a HHS-OIG study results in adverse modifications to Medicare payments for emergency
room imaging.

In its Fiscal Year 2010 Work Plan, the HHS-OIG lists as a work in progress its current
inspection of the appropriateness of payments for hospital emergency department x-rays and interpretations. It is possible that, in the final report, the HHS-OIG could recommend changes to CMS reimbursement rules regarding emergency imaging. If the
HHS-OIG were to make such recommendations and, if such recommendations were adopted, such changes could adversely affect our operations.

Our operating results are subject to seasonal fluctuation, which makes our results difficult to predict and could cause our
performance to fall short of quarterly expectations.

Historically, we have experienced increased demand for and
revenues from our services during the second and third fiscal quarters of each year. We believe that these increases are a result of increased outdoor and transportation activities and a greater utilization of service hours during the summer months.
During the first and fourth quarters of each fiscal year, when weather conditions are colder for a large portion of the United States, we have historically experienced relatively lower revenues than those experienced during the second and third
quarters. We may or may not continue to experience this or other seasonality in the future. These seasonal factors may lead to unpredictable variations in our quarterly operating results and cause the trading price of our common stock to decline.
Additionally, our ability to schedule adequate radiologist coverage during the seasonal period of increased demand for our services may affect our ability to provide appropriate turnaround times in our services to clients.



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Interruptions or delays in our information systems or in network or related services
provided by third-party suppliers could impair the delivery of our services and harm our business.

Our operations
depend on the uninterrupted performance of our information systems, which are substantially dependent on systems we have developed internally since our inception as well as systems provided by third parties over which we have little control. Failure
to maintain reliable information systems, or disruptions in our information systems could cause disruptions and delays in our business operations which could have a material adverse effect on our business, financial condition and results of
operations.

We rely on broadband connections provided by third party suppliers to route digital images from hospitals in the
United States to our facilities in Australia, Switzerland and the United States. Any interruption in the functioning of our internal systems or in the availability of the network connections between the hospitals and our affiliated physicians
(regardless of location) would reduce our revenue and profits. Frequent or persistent interruptions in our services could cause permanent harm to our reputation and brand and could cause current or potential customers to believe that our systems are
unreliable, leading them to switch to our competitors. Because our customers may use our services for critical healthcare services, any system failures could result in damage to our customers businesses and reputation. These customers could
seek significant compensation from us for their losses, and our agreements with our customers do not limit the amount of compensation that they may receive. Any claim for compensation, even if unsuccessful, would likely be time consuming and costly
for us to resolve.

Our systems are vulnerable to damage or interruption, including damage and/or interruption due to
earthquakes, floods, fires, power loss, telecommunication failures, terrorist attacks, computer viruses, break-ins, sabotage, and acts of vandalism. We do not carry business interruption insurance to protect us against losses that may result from
interruptions in our service as a result of system failures.

Finally, from time to time, we upgrade, replace or expand our
information systems. If we fail to successfully manage these activities, we could experience disruptions and delays in our operations, which could have a material adverse effect on our business.

Hospital privileging requirements or physician licensure laws may limit our market, and the loss of hospital privileges or state
medical licenses held by our affiliated radiologists could have a material adverse affect on our business, financial condition and results of operations.

Each of our affiliated radiologists must be granted privileges to practice at each hospital from which the radiologist receives
radiological images and must hold a license in good standing to practice medicine in the state in which the hospital is located. The requirements for obtaining and maintaining hospital privileges and state medical licenses vary significantly among
hospitals and states. If a hospital or state restricts or impedes the ability of physicians located outside of the United States to obtain privileges or a license to practice medicine at that hospital or in that state, the market for our services
could be reduced. In addition, any loss of existing privileges or medical licenses held by our affiliated radiologists could impair our ability to serve our existing customers and have a material adverse effect on our business, financial condition
and results of operations.

Many of the hospital privileges held by our affiliated radiologists were issued pursuant to a
standard promulgated by The Joint Commission that allows the local hospital to rely upon the credentialing and privileging processes performed by us with respect to our affiliated radiologists, a process called privileging by proxy.
Essentially, because we are a Joint Commission-accredited facility, other Joint Commission-accredited facilities can rely on our processes as opposed to duplicating work already performed in accordance with approved standards. However, over the past
few years, the Centers for Medicare and Medicaid Services, or CMS, has increasingly expressed concerns regarding this ability for hospitals to rely on the processes of another institution. In response to the CMS position, The Joint Commission has
recently announced that the standards allowing this practice will expire in July 2010.

In light of the planned changes
adopted by The Joint Commission, we are working with our customers that have historically relied upon these standards to institute new credentialing processes that will help them comply with the new standards once they become effective. Although we
have made significant progress, because of the additional workload that is inherent in any new process, these customers have been requesting to credential and privilege fewer physicians than are currently privileged at those sites. These changes
have required us to adapt many of the administrative processes we perform related to our affiliated physicians, including our credentialing, privileging and scheduling processes. If we are not able to adapt our processes effectively, our financial
condition and results of operations could be negatively impacted.

Medicare and Medicaid rules governing reassignment of
payments could affect our customers ability to collect fees for services provided by our affiliated radiologists and our ability to market our services to our customers.

The majority of our customers are radiology practices. These customers, and not us, typically bill and receive payments from Medicare
and/or Medicaid for professional services which were either performed by our affiliated radiologists that are U.S.-based or performed by the customers radiologist after submission of the preliminary reads provided by our affiliated
radiologists. Medicare and Medicaid generally prohibit a physician who performs a covered medical service from reassigning to anyone else (including to other physicians) the performing physicians right to receive payment directly
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circumstances. We believe that the services provided by our affiliated radiologists satisfy one or more of the exceptions to this prohibition, but the various Medicare carriers and state Medicaid
authorities may interpret these exceptions differently than we do. Because Medicare and Medicaid payments may comprise a significant portion of the total payments received by our customers for the services of our U.S.-based affiliated radiologists,
if it were determined that we do not qualify for an exception, our customers could be prohibited from billing Medicare and/or Medicaid for the services of our U.S.-based affiliated radiologists and this would cause a material adverse effect on our
ability to market our services and on our business and results of operations. Future laws or regulations, moreover, may require that we bill Medicare or Medicaid directly for new services we provide to our customers. Should this occur, we would
either be required to forgo business with such customers or be required to design, develop and implement an appropriate recordkeeping and billing system to bill Medicare and Medicaid.

Medicare reimbursement rules currently provide that the proper Medicare carrier to pay physician claims is the Medicare carrier for the
region in which the physician or practice providing the service is located, rather than the Medicare carrier for the region in which the patient receiving the services is located. Many of our affiliated radiologists are located in a Medicare region
that is different from the Medicare region in which the patient and treating hospital are located. Since it is incumbent on our customers to file with the proper Medicare carrier in order to receive payment, it may be necessary for our customers to
enroll with additional Medicare carriers in order to properly submit claims for reimbursement. To the extent that our customers are unwilling or unable to do so, they may be unwilling to use our services unless we were to submit the claims. Should
this occur, we would either be required to forgo business with such customers or be required to design, develop and implement an appropriate recordkeeping and billing system to bill Medicare and Medicaid. If we are unable to effectively address
these challenges, our business, financial condition and results of operations could be adversely affected.

Changes in
the rules and regulations governing Medicares and Medicaids payment for medical services could affect our revenues, particularly with respect to final reads.

Although most reads we provide are preliminary reads rather than final reads, we are providing an increasing number of final and
sub-specialty reads. Cost containment pressures on Medicare and Medicaid could result in a reduction in the amount that the government will pay for these reads, which could cause pricing pressure on our services. Should that occur, we could be
required to lower our prices, or our customers could elect to provide the reads themselves or obtain such services from one of our competitors, and not utilize the services of our affiliated radiologists, which would have a material adverse effect
on our business, results of operations and financial condition.

We may be subject to less favorable levels of payment
based upon third party payor fee schedules.

Many patients are covered by some form of private or government health
insurance or other third party payment program. Third party payors generally establish fee schedules or other payment authorization methods for various procedures that govern which procedures will be reimbursed by the third party payors and the
amount of reimbursement. To the extent that such schedules impact the rates at which third party payors are willing to pay the healthcare providers with whom we contract to provide imaging services, we are indirectly impacted by such fee schedules.
However, if we were to negotiate direct payment arrangements with third party payors in the future, we would be directly impacted by such schedules. In addition, there is no guarantee that Medicare, state Medicaid programs, or commercial third party
payors will continue to cover professional radiology services. For example, in some states, the Medicaid program budgets have been either cut or funds diverted to other programs, which have resulted in limiting the enrollment of participants. This
has resulted in an increasing number of bankruptcies and difficulty in collecting accounts receivable at hospitals in certain states. Any reduction or elimination in coverage for our services could adversely impact our business.



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Changes in the healthcare industry or litigation reform could reduce the number of
diagnostic radiology procedures ordered by physicians, which could result in a decline in the demand for our services, pricing pressure and decreased revenue.

Changes in the healthcare industry directed at controlling healthcare costs and perceived over-utilization of diagnostic radiology
procedures could reduce the volume of radiological procedures performed. For example, in an effort to contain increasing imaging costs, as part of the overall healthcare reform efforts, the U.S. government is considering what some managed care
organizations and private insurers have already adoptednamely, instituting pre-authorization policies which require physicians to pre-clear orders for diagnostic radiology procedures before those procedures can be performed. If pre-clearance
protocols are broadly instituted by Medicare and/or throughout the healthcare industry, the volume of radiological procedures could decrease, resulting in pricing pressure and declining demand for our services. In addition, it is often alleged that
many physicians order diagnostic procedures even when the procedures may have limited clinical utility in large part to establish a record for defense in the event of a medical liability claim. Changes in tort law could reduce the number of
radiological procedures ordered for this purpose and therefore reduce the total number of radiological procedures performed each year, which could harm our operating results.

We may not have adequate intellectual property rights in our brand, which could limit our ability to enforce such rights.

Our success depends in part upon our ability to market our services under the NightHawk brand. However, we believe
that the term NightHawk cannot be afforded trademark protection as it is a generic term used to describe the provision of off-hours radiology services. Other businesses may have prior rights in the brand names that we market under or in
similar names, which could limit or prevent our ability to use these marks, or to prevent others from using similar marks. If we are unable to prevent others from using our brand names, or if others prohibit us from using them, our revenue could be
adversely affected. Even if we are able to protect our intellectual property rights in such brands, we could incur significant costs in doing so.

Any failure to protect our intellectual property rights in our workflow technology could impair its value and our competitive
advantage.

We rely heavily on our proprietary workflow technology to distribute radiological images to the
appropriately licensed and privileged radiologist best able to provide the necessary clinical insight in the least amount of turnaround time. If we fail to protect our intellectual property rights adequately, our competitors may gain access to our
technology, and our business may be harmed. We currently do not hold any patents with respect to our technology. Although we have filed an application for a patent covering our workflow technology, we may be unable to obtain patent protection for
this technology. In addition, any patents we may obtain may be challenged by third parties. Accordingly, despite our efforts, we may be unable to prevent third parties from using or misappropriating our intellectual property.

We may in the future become subject to intellectual property rights claims, which could harm our business and operating results.

The information technology industry is characterized by the existence of a large number of patents, trademarks and
copyrights and by frequent litigation based on allegations of infringement or other violations of intellectual property rights. As an example, we are aware that on July 31, 2007, Merge eMed, Inc., or Merge, filed a complaint against another
teleradiology provider, VRC, alleging that VRC has infringed on certain of Merges patents relating to teleradiology. In connection with that litigation, VRC filed a Request for Reexamination with the U.S. Patent and Trademark Office, or US
PTO, which asks the US PTO to re-examine the validity of the patents at issue. Based solely upon publicly available information from VRC, we understand that, in August 2008, the US PTO ruled invalid all of the claims in the patents upon which Merge
had sued VRC and that VRC is awaiting judicial dismissal of the case. While we are not currently a party to any intellectual property litigation, if Merge or another third party asserts that our technology violates that third-partys
proprietary rights, or if a court holds that our technology violates such rights, we may be required to re-engineer our technology, obtain licenses from third parties to continue using our technology without substantial re-engineering or remove the
infringing functionality or feature. In addition, we may incur substantial costs defending any such claim. We may also become subject to damage awards, which could cause us to incur additional losses and harm our financial position.

Monitoring potential infringement of and defending or asserting our intellectual property rights may entail significant expense. We may
initiate claims or litigation against third parties for infringement of our proprietary rights or to establish the validity of our proprietary rights. Any litigation, whether or not it is resolved in our favor, could result in significant expense to
us and divert the efforts of our technical and management personnel.

We are dependent on our management team, and the
loss of any key member of this team may prevent us from implementing our business plan in a timely manner.

Our success
depends largely upon the continued services of our executive officers, particularly David Engert, our President & Chief Executive Officer and David Sankaran, our Chief Financial Officer. The loss of either of these executive officers could
have a material adverse effect on our business, financial condition, results of operations and the trading price of our common stock. The search for replacements for any of our executives could be time consuming and could distract our management
team from the day-to-day operations of our business.



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If we fail to implement and maintain an effective system of internal controls, we may
not be able to report our financial results in an accurate or timely manner, prevent fraud or comply with Section 404 of the Sarbanes-Oxley Act of 2002, which may harm our business and affect the trading price of our stock.

Effective internal controls are necessary for us to provide reliable financial reports in a timely manner and to prevent fraud. We cannot
assure you that we will maintain an effective system of internal controls in the future. If we fail to adequately staff and train our accounting and finance personnel to meet the demands of operating as a public company, including the requirements
of the Sarbanes-Oxley Act of 2002, or fail to maintain adequate internal controls, any resulting material weakness in internal controls could prevent our management from concluding the internal controls are effective and impair our ability to
prevent material misstatements in our financial statements, which could cause our business to suffer. In addition, investors perceptions that our internal controls are inadequate or that we are unable to produce accurate financial statements
in a timely manner or prevent fraud may negatively affect the trading price of our stock or result in stockholder litigation.

We may be unable to enforce non-compete agreements with our affiliated radiologists.

Our independent contractor agreements with our affiliated radiologists typically provide that the radiologists may not compete with us for
a period of time, typically ranging from 180 days to one year, after the agreements terminate. These covenants not to compete are enforceable to varying degrees from jurisdiction to jurisdiction. In most jurisdictions, a covenant not to compete will
be enforced only to the extent that it is necessary to protect the legitimate business interest of the party seeking enforcement, that it does not unreasonably restrain the party against whom enforcement is sought and that it is not contrary to the
public interest. This determination is made based upon all the facts and circumstances of the specific case at the time enforcement is sought. It is unclear whether our interests will be viewed by courts as the type of protected business interest
that would permit us to enforce a non-competition covenant against the radiologists. A determination that these provisions are not enforceable could have a material adverse effect on us.

If we acquire any companies or technologies in the future, they could prove difficult to integrate, disrupt our business, dilute
stockholder value and adversely affect our operating results.

An element of our strategy is to pursue strategic
acquisitions that are complementary to our business or offer us other strategic benefits. Acquisitions in which we may engage involve numerous risks, including:



| |  |  | difficulties or delays in integrating physician compensation models,
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| |  |  | difficulties in integrating operations, technologies, services and personnel,
| | - |  | -----------------------------------------------------------------------------



| |  |  | diversion of financial and management resources from existing operations,
| | - |  | -------------------------------------------------------------------------



| |  |  | risk of entering new markets,
| | - |  | -----------------------------



| |  |  | potential write-offs of acquired assets,
| | - |  | ----------------------------------------



| |  |  | potential loss of key employees, and
| | - |  | ------------------------------------



| |  |  | inability to generate sufficient revenue to offset acquisition costs.
| | - |  | ---------------------------------------------------------------------

We have in the past experienced, and may experience in the future, these difficulties as we integrate the operations of companies we
acquire.

In addition, if we finance acquisitions by issuing convertible debt or equity securities, our existing stockholders
may be diluted which could affect the market price of our stock. We have made six acquisitions to date, and our management has experienced challenges in completing acquisitions and integrating acquired businesses with our operations. If we fail to
properly evaluate and execute acquisitions, our business and prospects may be harmed.

Enforcement of state and federal
anti-kickback laws may adversely affect our business, financial condition or operations.

Various federal and state
laws govern financial arrangements among healthcare providers. The federal anti-kickback law prohibits the knowing and willful offer, payment, solicitation or receipt of any form of remuneration in return for, or with the purpose to induce, the
referral of Medicare, Medicaid, or other federal healthcare program patients, or in return for, or with the purpose to induce, the purchase, lease or order of items or services that are covered by Medicare, Medicaid, or other federal healthcare
programs. Similarly, many state laws prohibit the solicitation, payment or receipt of remuneration in return for, or to induce the referral of patients in private as well as government programs. Violation of these anti-kickback laws may result in
substantial civil or criminal penalties for individuals or entities and/or exclusion from participating in federal or state healthcare programs. If we are excluded from



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federal or state healthcare programs, our customers who participate in those programs would not be permitted to continue doing business with us. We believe that we are operating in compliance
with applicable law and believe that our arrangements with providers would not be found to violate the anti-kickback laws. However, these laws could be interpreted in a manner inconsistent with our operations.

Because our customers submit claims to the Medicare program based on the services we provide, it is possible that a lawsuit could
be brought against us or our customers under the federal False Claims Act, and the outcome of any such lawsuit could have a material adverse effect on our business, financial condition and operations.

The Federal False Claims Act provides, in part, that the federal government may bring a lawsuit against any person whom it believes has
knowingly presented, or caused to be presented, a false or fraudulent request for payment from the federal government, or who has made a false statement or used a false record to get a claim approved. The government has taken the position that
claims presented in violation of the federal anti-kickback law may be considered a violation of the Federal False Claims Act. The Federal False Claims Act further provides that a lawsuit brought under that act may be initiated in the name of the
United States by an individual who was the original source of the allegations, known as the relator. Actions brought under the Federal False Claims Act are sealed by the court at the time of filing. The only parties privy to the information
contained in the complaint are the relator, the federal government and the court. Therefore, it is possible that lawsuits have been filed against us that we are unaware of or which we have been ordered by the court not to discuss until the court
lifts the seal from the case. Penalties include fines ranging from $5,500 to $11,000 for each false claim, plus three times the amount of damages that the federal government sustained because of the act of that person. We believe that we are
operating in compliance with the Medicare rules and regulations, and thus, the Federal False Claims Act. However, if we were found to have violated certain rules and regulations and, as a result, submitted or caused our customers to submit allegedly
false claims, any sanctions imposed under the Federal False Claims Act could result in substantial fines and penalties or exclusion from participation in federal and state healthcare programs which could have a material adverse effect on our
business and financial condition.

Federal regulatory and law enforcement authorities have recently increased enforcement
activities with respect to Medicare and Medicaid fraud and abuse regulations and other reimbursement laws and regulations, including laws and regulations that govern our activities and the activities of teleradiologists. These increased enforcement
activities may have a direct or indirect adverse affect on our business, financial condition and results of operations.

Additionally, some state statutes contain prohibitions similar to and possibly even more restrictive than the Federal False Claims Act.
These state laws may also empower state administrators to adopt regulations restricting financial relationships or payment arrangements involving healthcare providers under which a person benefits financially by referring a patient to another
person. We believe that we are operating in compliance with these laws. However, if we are found to have violated such laws, our business, results of operations and financial condition would be harmed.

Changes in the governmental interpretation or enforcement of the federal prohibition on physician self-referral may adversely
affect our business, financial conditions or operations.

The federal Stark Law prohibits a physician from
referring Medicare or Medicaid patients for the provision of designated health services by an entity in which the physician has an investment interest or with which the physician has entered into a compensation arrangement. Designated health
services include both the professional and technical components of diagnostic tests using X-rays, ultrasound or other imaging services, CT, MRI, radiation therapy and diagnostic mammography services. Violation of the Stark Law may result in
substantial civil penalties and/or exclusion from participation in federal health care programs for both the referring physicians and any entities that submit technical and/or professional component claims for any diagnostic tests ordered by those
referring physicians. We believe that we have structured our arrangements between our affiliated radiologists and our customers in a manner that complies with applicable law. However, this law could be interpreted in a manner inconsistent with our
arrangements.

The trading price of our common stock has been volatile and will likely remain volatile.

The trading prices of many publicly-traded companies are highly volatile, particularly companies such as ours that
have relatively limited operating histories and are operating in an evolving industry. Since our initial public offering in February 2006, the trading price of our common stock has been subject to wide fluctuations. Factors that will continue to
affect the trading price of our common stock include:



| |  |  | variations in our operating results,
| | - |  | ------------------------------------



| |  |  | announcements of new services, strategic alliances or significant agreements by us or by our competitors,
| | - |  | ---------------------------------------------------------------------------------------------------------



| |  |  | recruitment or departure of key personnel,
| | - |  | ------------------------------------------



| |  |  | changes in the estimates of our operating results or changes in recommendations by any securities analysts that follow our common stock, and
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | market conditions in our industry, the industries of our customers and the economy as a whole.
| | - |  | ----------------------------------------------------------------------------------------------



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In addition, if the market for healthcare stocks or healthcare services or the stock market
in general experiences loss of investor confidence, the trading price of our common stock could decline for reasons unrelated to our business, operating results or financial condition. The trading price of our common stock might also decline in
reaction to events that affect other companies in our industry even if these events do not directly affect us.

We may
need additional capital, which may not be available to us.

We currently anticipate that our existing capital resources
and cash generated from future operations will be sufficient to meet our liquidity needs for at least the next 12 months. However, we may need to raise additional funds if our estimates of revenues, working capital and/or capital expenditure
requirements change or prove inaccurate or in order for us to respond to unforeseen technological or marketing hurdles or to take advantage of unanticipated opportunities. There can be no assurance that any such funds will be available at the time
or times needed or available on terms acceptable to us. Furthermore, if our agreement with St. Paul Radiology, P.A. is terminated, (whether through negotiated settlement or through an arbitration or litigation process), we may be required to repay
all or a portion of our Term Loan. See If our customers terminate their agreements with us or if our customers businesses materially decline, our financial condition and operating results could be adversely affected. If we
are required to make such mandatory repayments, our business, financial condition and results of operations could be materially adversely affected.

If securities analysts do not publish research or reports about our business, or if they downgrade our stock, the price of our
stock could decline.

The trading market for our common stock will rely in part on the availability of research and
reports that third-party industry or financial analysts publish about us. There are many large, publicly-traded companies active in the healthcare services industry, which may mean it will be less likely that we receive widespread analyst coverage.
Furthermore, if one or more of the analysts who do cover us downgrade our stock, our stock price would likely decline. If one or more of these analysts cease coverage of our company, we could lose visibility in the market, which in turn could cause
our stock price to decline.

Adverse changes in general economic conditions could adversely affect our operating
results.

Our success depends upon our ability to continue to provide our services to our customers and the willingness
of our customers to engage us for these services. The willingness and ability of our customers to engage us for our services depends upon a number of factors, including broader economic conditions and perceptions of such conditions by our customers.
Adverse changes in the broader U.S. economy may have an adverse impact on the behavior of our customers and the extent to which they are willing to engage us for our services. In addition, we may experience difficulty collecting accounts receivable
in a timely manner, or at all, if our customers are adversely affected by prevailing economic conditions. Any of these factors could, in turn, have a material adverse effect on our business, financial condition, results of operations and cash flows.

A change in our customer composition may impact our collection rates.

An increasing number of our customers are hospitals or hospital groups. As changes occur in general economic conditions, hospitals may be
required to modify their budgets and/or move funds to other programs as directed by their management or changes in government funding. Recently, we have noticed an increasing number of hospitals becoming insolvent as government funds decrease to
hospitals in certain states. If this trend continues and impacts our customers, our collection rates may decrease and our bad debt expense increase which, in turn, could have a material adverse effect on our business, financial condition, results of
operations and cash flows.

We are exposed to foreign currency exchange risks, which could harm our business and
operating results.

We maintain significant operations in Australia and Switzerland, and are exposed to adverse changes
in exchange rates associated with the expenses of our operations in these countries. However, we do not currently engage in any hedging transactions to mitigate these risks. Although from time to time we review our foreign currency exposure and
evaluate whether we should enter into hedging transactions, we may not adequately hedge against any future volatility in currency exchange rates and, if we engage in hedging transactions, the transactions will be based on forecasts which later may
prove to be inaccurate. Any failure to hedge successfully or anticipate currency risks properly could adversely affect our operating results.

In addition, a third of our affiliated radiologists live in Australia and Switzerland, but receive compensation from us in U.S. dollars.
Any relative weakness in the U.S. dollar compared to the Australian dollar or Swiss franc may increase the cost of living for our affiliated radiologists and make it less attractive for our affiliated radiologists to sign or renew their service
contracts with us.



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Provisions in our certificate of incorporation and bylaws and Delaware law might
discourage, delay or prevent a change of control of our company or changes in our management and, therefore, depress the trading price of our common stock.

Our certificate of incorporation and bylaws contain provisions that could depress the trading price of our common stock by acting to
discourage, delay or prevent a change in control of our company or changes in our management that the stockholders of our company may deem advantageous. These provisions:



| |  |  | establish a classified board of directors so that not all members of our board are elected at one time,
| | - |  | -------------------------------------------------------------------------------------------------------



| |  |  | provide that directors may only be removed for cause,
| | - |  | -------------------------------------------------------



| |  |  | authorize the issuance of blank check preferred stock that our board could issue to increase the number of outstanding shares and to
discourage a takeover attempt,
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | eliminate the ability of our stockholders to call special meetings of stockholders,
| | - |  | -----------------------------------------------------------------------------------



| |  |  | prohibit stockholder action by written consent, which has the effect of requiring all stockholder actions to be taken at a meeting of stockholders,
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | provide that the board of directors is expressly authorized to make, alter or repeal our bylaws, and
| | - |  | ----------------------------------------------------------------------------------------------------



| |  |  | establish advance notice requirements for nominations for election to our board or for proposing matters that can be acted upon by stockholders at
stockholder meetings.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------

In addition, Section 203 of the Delaware General Corporation Law may discourage,
delay or prevent a change in control of our company.



|ITEM 6. | Exhibits
|------- | --------



|               |  |                                                                                                                                                                           
|-------------- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit
Number |  | Description                                                                                                                                                               
|               | 
|10.39*         |  | 2010 Performance-Based Incentive Program approved by the Compensation Committee of the Board of Directors on April 29, 2010                                               
|               | 
|10.40*         |  | Professional Services Agreement dated May 1, 2010 between the Company and Peacefield Radiology, LLC ( a professional medical association wholly-owned by Dr. Tim
Myers).  
|               | 
|31.1           |  | Certification of Principal Executive Officer pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of
2002.
|               | 
|31.2           |  | Certification of Principal Financial Officer pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of
2002.
|               | 
|32.1           |  | Certification of Principal Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.                    
|               | 
|32.2           |  | Certification of Principal Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.                    



|* | Indicates a management contract or compensatory plan or arrangement.
|- | --------------------------------------------------------------------



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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed
on its behalf by the undersigned, thereunto duly authorized.



|                  |  |  |  |                                    |  |                                                                                                                    
|----------------- |  |  |  | ---------------------------------- |  | -------------------------------------------------------------------------------------------------------------------
|                  |  |  |  | NIGHTHAWK RADIOLOGY HOLDINGS, INC.
|                  |  |  | 
|Date: May 7, 2010 |  |  |  | By:                                |  | /s/    DAVID M.
SANKARAN                                                                                           
|                  |  |  |  |                                    |  | David M. Sankaran
Executive Vice President and Chief Financial Officer
(Principal Financial and Accounting Officer)



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