Document:

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                                                                    EXHIBIT 4.15

                             SUPPLEMENTAL INDENTURE

         This SUPPLEMENTAL INDENTURE (this "Supplemental Indenture"), dated as
of May 19, 2004, is by and between IASIS Healthcare Corporation, a Delaware
corporation (the "Company"), the Guarantors named on the signature page hereof,
and The Bank of New York, a New York banking corporation, as trustee under the
indenture referred to below (the "Trustee").

                              W I T N E S S E T H

         WHEREAS, the Company has heretofore executed and delivered to the
Trustee an indenture, dated as of October 15, 1999 (as supplemented to date, the
"Indenture"), providing for the issuance of an aggregate principal amount net
discount notes of $230,000,000 of 13% Senior Subordinated Notes due 2009 (the
"Notes");

         WHEREAS, under Section 9.02 of the Indenture, the Company, the
Guarantors and the Trustee may amend the Indenture with the consent of the
Holders of at least a majority in principal amount of Notes then outstanding
voting as a single class pursuant to the terms set forth therein; and

         WHEREAS, Holders of a majority in principal amount of Notes outstanding
voting as a single class have consented to the amendments set forth herein in
connection with the tender offer and consent solicitation of the Company
commencing on May 6, 2004 with respect to the Notes (collectively, the "Offer");
and

         WHEREAS, the Company, the Guarantors and the Company desire to enter
into this Supplemental Indenture on the date set forth above for the purpose of
making the amendments set forth herein, which amendments will become operative
as set forth in Section 3 herein;

         NOW THEREFORE, in consideration of the foregoing and for other good and
valuable consideration, the receipt of which is hereby acknowledged, the
Company, the Guarantors and the Trustee mutually covenant and agree for the
equal and ratable benefit of the Holders of the Notes as follows:

         Section 1. Capitalized Terms. Capitalized terms used herein without
definition shall have the meanings assigned to them in the Indenture.

         Section 2. Amendments to Indenture. Subject to Section 3 below, the
Indenture is hereby amended as set forth in Exhibit A hereof.

         Section 3. Operative Effect. The amendments referenced in Section 2
above will become operative as of, and subject to, the acceptance for purchase
and payment by the Company of Notes validly tendered pursuant to the Offer
representing a majority of the aggregate principal amount of Notes outstanding.

         Section 4. Governing Law. THE INTERNAL LAW OF THE STATE OF NEW YORK
SHALL GOVERN AND BE USED TO CONSTRUE THIS SUPPLEMENTAL

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INDENTURE BUT WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW
TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION WOULD BE
REQUIRED THEREBY.

         Section 5. Counterparts. The parties may sign any number of copies of
this Supplemental Indenture. Each signed copy shall be an original, but all of
them together represent the same agreement.

         Section 6. Effect of Headings. The Section headings herein are for
convenience only and shall not affect the construction hereof.

         Section 7. Force and Effect of Unmodified Provisions. Except as amended
by this Supplemental Indenture, the terms of the Indenture will remain unchanged
and the Indenture will continue in full force and effect. This Supplemental
Indenture will form a part of the Indenture for all purposes, and shall be read
and construed together, and every Note heretofore or hereafter authenticated and
delivered under the Indenture shall be bounded thereby.

         Section 8. The Trustee. The Trustee shall not be responsible in any
manner whatsoever for or in respect of the validity or sufficiency of this
Supplemental Indenture or for or in respect of the recitals contained herein,
all of which recitals are made solely by the Guarantors and the Company.

                  [remainder of page intentionally left blank]

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                   [signature page of Supplemental Indenture]

         IN WITNESS WHEREOF, the parties hereto have caused this Supplemental
Indenture to be duly executed as of the date first above written.

                                       COMPANY:
                                       IASIS Healthcare Corporation

                                       By: /s/ W. Carl Whitmer
                                           -------------------------------------
                                       Name:  W. Carl Whitmer
                                              ----------------------------------
                                       Title: Chief Financial Officer
                                              ----------------------------------

                                       GUARANTORS:
                                       Memorial Hospital of Tampa, LP
                                       Mesa General Hospital, LP
                                       Odessa Regional Hospital, LP
                                       Palms of Pasadena Hospital, LP
                                       Southwest General Hospital, LP
                                       St. Luke's Behavioral Hospital, LP
                                       St. Luke's Medical Center, LP
                                       Tempe St. Luke's Hospital, LP
                                       Town & Country Hospital, LP
                                       Davis Hospital & Medical Center, LP
                                       The Medical Center of Southeast Texas, LP
                                       Jordan Valley Hospital, LP

                                       By:      IASIS Healthcare Holdings, Inc.,
                                                as General Partner

                                                By: /s/ Frank A. Coyle
                                                    ----------------------------
                                                Name:  Frank A. Coyle
                                                       -------------------------
                                                Title: Secretary
                                                       -------------------------

                                       IASIS Healthcare MSO Sub of Salt Lake
                                       City, LLC

                                       By: /s/ Frank A. Coyle
                                           -------------------------------------
                                       Name: Frank A. Coyle
                                             -----------------------------------
                                       Title: Secretary
                                              ----------------------------------

                                       3
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           [continuation of signature page of Supplemental Indenture]

                                 Arizona Diagnostic & Surgical Center, Inc.
                                 Brookwood Diagnostic Center of Tampa, Inc.
                                 IASIS Physician Services, Inc.
                                 Clinicare of Texas, Inc.
                                 IASIS Home Infusion and Medical Equipment, Inc.
                                 IASIS Transco, Inc.
                                 MCS/AZ, Inc.
                                 Palms of Pasadena Homecare, Inc.
                                 Tampa Bay Staffing Solutions, Inc.
                                 Baptist Joint Venture Holdings, Inc.
                                 Beaumont Hospital Holdings, Inc.
                                 Biltmore Surgery Center Holdings, Inc.
                                 CliniCare of Utah, Inc.
                                 Davis Hospital Holdings, Inc.
                                 Davis Surgical Center Holdings, Inc.
                                 First Choice Physicians Network Holdings, Inc.
                                 Health Choice Arizona, Inc.
                                 IASIS Finance, Inc.
                                 IASIS Healthcare Holdings, Inc.
                                 IASIS Hospital Nurse Staffing Company
                                 IASIS Management Company
                                 Jordan Valley Hospital Holdings, Inc.
                                 Metro Ambulatory Surgery Center, Inc.
                                 Pioneer Valley Health Plan, Inc.
                                 Pioneer Valley Hospital, Inc.
                                 Rocky Mountain Medical Center, Inc.
                                 Salt Lake Regional Medical Center, Inc.
                                 Southridge Plaza Holdings, Inc.
                                 SSJ St. Petersburg Holdings, Inc.
                                 Biltmore Surgery Center, Inc.
                                 Lake Mead Hospital, Inc.

                                 By: /s/ Frank A. Coyle
                                     -------------------------------------------
                                 Name: Frank A. Coyle
                                       -----------------------------------------
                                 Title: Secretary
                                        ----------------------------------------

The Bank of New York, as Trustee

By: /s/ Robert A. Massimillo
    -------------------------------
Name: Robert A. Massimillo
      -----------------------------
Title: Vice President
       ----------------------------

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                                    EXHIBIT A

                                   AMENDMENTS

         1. The following Section 3.09: "Offer to Purchase by Application of
Excess Proceeds":

         "In the event that, pursuant to Section 4.10 hereof, the Company shall
be required to commence an offer to all Holders to purchase Notes (an "Asset
Sale Offer"), it shall follow the procedures specified below.

         The Asset Sale Offer shall remain open for a period of 20 Business Days
following its commencement and no longer, except to the extent that a longer
period is required by applicable law (the "Offer Period"). No later than five
Business Days after the termination of the Offer Period (the "Purchase Date"),
the Company shall purchase the principal amount of Notes required to be
purchased pursuant to Section 4.10 hereof (the "Offer Amount") or, if less than
the Offer Amount has been tendered, all Notes tendered in response to the Asset
Sale Offer. Payment for any Notes so purchased shall be made in the same manner
as interest payments are made.

         If the Purchase Date is on or after an interest record date and on or
before the related interest payment date, any accrued and unpaid interest shall
be paid to the Person in whose name a Note is registered at the close of
business on such record date, and no additional interest shall be payable to
Holders who tender Notes pursuant to the Asset Sale Offer.

         Upon the commencement of an Asset Sale Offer, the Company shall send,
by first class mail, a notice to the Trustee and each of the Holders, with a
copy to the Trustee. The notice shall contain all instructions and materials
necessary to enable such Holders to tender Notes pursuant to the Asset Sale
Offer. The Asset Sale Offer shall be made to all Holders. The notice, which
shall govern the terms of the Asset Sale Offer, shall state:

         (i) that the Asset Sale Offer is being made pursuant to this Section
3.09 and Section 4.10 hereof and the length of time the Asset Sale Offer shall
remain open;

         (ii) the Offer Amount, the purchase price and the Purchase Date;

         (iii) that any Note not tendered or accepted for payment shall continue
to accrue interest;

         (iv) that, unless the Company defaults in making such payment, any Note
accepted for payment pursuant to the Asset Sale Offer shall cease to accrue
interest after the Purchase Date;

         (v) that Holders electing to have a Note purchased pursuant to an Asset
Sale Offer may only elect to have all of such Note purchased and may not elect
to have only a portion of such Note purchased;

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         (vi) that Holders electing to have a Note purchased pursuant to any
Asset Sale Offer shall be required to surrender the Note, with the form entitled
"Option of Holder to Elect Purchase" on the reverse of the Note completed, or
transfer the Note by book-entry transfer, to the Company, a depositary, if
appointed by the Company, or a Paying Agent at the address specified in the
notice at least three days before the Purchase Date;

         (vii) that Holders shall be entitled to withdraw their election if the
Company, the depositary or the Payment Agent, as the case may be, receives, not
later than the expiration of the Offer Period, facsimile transmission or letter
setting forth the name of the Holder, the principal amount of the Note the
Holder delivered for purchase and a statement that such Holder is withdrawing
his election to have such Note purchased;

         (viii) that, if the aggregate principal amount of Notes surrendered by
Holders exceeds the Offer Amount, the Company shall select the Notes to be
purchased on a pro rata basis (with such adjustments as may be deemed
appropriate by the Company so that only Notes in denominations of $1,000, or
integral multiples thereof, shall be purchased); and

         (ix) that Holders whose Notes were purchased only in part shall be
issued new Notes equal in principal amount to the unpurchased portion of the
Notes surrendered (or transferred by book-entry transfer).

         On or before 10:00 a.m. on the Purchase Date, the Company shall, to the
extent lawful, accept for payment, on a pro rata basis to the extent necessary,
the Offer Amount or portions thereof tendered pursuant to the Asset Sale Offer,
or if less than the Offer Amount has been tendered, all Notes tendered, and
shall deliver to the Trustee an Officers' Certificate stating that such Notes or
portions thereof were accepted for payment by the Company in accordance with the
terms of this Section 3.09. The Company, the Depositary or the Paying Agent, as
the case may be, shall promptly (but in any case not later than five days after
the Purchase Date) mail or deliver to each tendering Holder an amount equal to
the purchase price of the Notes tendered by such Holder and accepted by the
Company for purchase, and the Company shall promptly issue a new Note, and the
Trustee, upon written request from the Company shall authenticate and mail or
deliver such new Note to such Holder, in a principal amount equal to any
unpurchased portion of the Note surrendered. Any Note not so accepted shall be
promptly mailed or delivered by the Company to the Holder thereof. The Company
shall publicly announce the results of the Asset Sale Offer on the Purchase
Date.

         Other than as specifically provided in this Section 3.09, any purchase
pursuant to this Section 3.09 shall be made pursuant to the provisions of
Sections 3.01 through 3.06 hereof."

         is hereby deleted in its entirety and replaced by the following:
"Intentionally Omitted."

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         2. The following Section 4.03: "Reports" is hereby modified by deletion
of the italicized language and addition of the bolded language:

         "Whether or not required by the SEC, so long as any Notes are
outstanding, the Company shall furnish to the Holders of Notes and the Trustee,
within the time periods specified in the SEC's rules and regulations: (i) all
quarterly and annual financial information that would be required to be
contained in a filing with the SEC on Forms 10-Q and 10-K if the Company were
required to file such Forms, including a "Management's Discussion and Analysis
of Financial Condition and Results of Operations" and, with respect to the
annual information only, a report on the annual financial statements by the
Company's certified independent accountants; and (ii) all current reports that
would be required to be filed with the SEC on Form 8-K if the Company were
required to file such reports. In addition, following the consummation of the
Exchange Offer contemplated by the Registration Rights Agreement, whether or not
required by the SEC, the Company shall file a copy of all the information and
reports referred to in clauses (i) and (ii) above with the SEC for public
availability within the time periods specified in the SEC's rules and
regulations (unless the SEC will not accept such a filing) and make such
information available to securities analysts and prospective investors upon
request. In addition, the THE Company and the Subsidiary Guarantors have agreed
AGREES that, for so long as any Notes remain outstanding, they IT shall furnish
to the Holders and to securities analysts and prospective investors, upon their
request, the information required to be delivered pursuant to Rule 144A(d)(4)
under the Securities Act.

         If the Company has designated any of its Subsidiaries as Unrestricted
Subsidiaries, then the quarterly and annual financial information required by
the preceding paragraph shall include a reasonably detailed presentation, either
on the face of the financial statements or in the footnotes thereto, and in
Management's Discussion and Analysis of Financial Condition and Results of
Operations, of the financial condition and results of operations of the Company
and its Restricted Subsidiaries separate from the financial condition and
results of operations of the Unrestricted Subsidiaries of the Company. Delivery
of such reports, information and documents to the Trustee is for informational
purposes only and the Trustee's receipt of such shall not constitute
constructive notice of any information contained therein or determinable from
information contained therein, including the Company's compliance with any of
its covenants hereunder (as to which the Trustee is entitled to rely exclusively
on Officers' Certificates)."

         3. The following Section 4.04: "Compliance Certificate" is hereby
modified by deletion of the italicized language:

         "(a) The Company and each Guarantor shall (to the extent that such
Guarantor is so required under the TIA) deliver to the Trustee within 90 days
after the end of each fiscal year, an Officers' Certificate stating that a
review of the activities of the Company and its Subsidiaries during the
preceding fiscal year has been made under the supervision of the signing
Officers with a view to determining whether the Company has kept, observed,
performed and fulfilled its obligations under this Indenture, and further
stating, as to each such Officer signing such certificate, that to the best of
his or her knowledge the Company has kept, observed, performed and fulfilled
each and every covenant contained in this Indenture and is not in default

                                      A-3
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in the performance or observance of any of the terms, provisions and conditions
of this Indenture (or, if a Default or Event of Default shall have occurred,
describing all such Defaults or Events of Default of which he or she may have
knowledge and what action the Company is taking or proposes to take with respect
thereto) and that to the best of his or her knowledge no event has occurred and
remains in existence by reason of which payments on account of the principal of
or interest, if any, on the Notes is prohibited or if such event has occurred, a
description of the event and what action the Company is taking or proposes to
take with respect thereto. For purposes of this paragraph, such compliance shall
be determined without regard to any period of grace or requirement of notice
provided under this Indenture.

         (b) So long as not contrary to the then current recommendations of the
American Institute of Certified Public Accountants, the year-end financial
statements delivered pursuant to Section 4.03(a) hereof shall be accompanied by
a written statement of the Company's independent public accountants (who shall
be a firm of established national reputation) that in making the examination
necessary for certification of such financial statements, nothing has come to
their attention that would lead them to believe that the Company has violated
any provisions of Article 4 or Article 5 hereof or, if any such violation has
occurred, specifying the nature and period of existence thereof, it being
understood that such accountants shall not be liable directly or indirectly to
any Person for any failure to obtain knowledge of any such violation.

         (c) The Company shall, so long as any of the Notes are outstanding,
deliver to the Trustee, forthwith upon any Officer becoming aware of any Default
or Event of Default, an Officers' Certificate specifying such Default or Event
of Default and what action the Company is taking or proposes to take with
respect thereto.";

         and addition of the bolded language:

         "THE COMPANY SHALL, SO LONG AS ANY OF THE NOTES ARE OUTSTANDING, COMPLY
WITH SECTION 314 OF THE TIA."

         4. The following Section 4.05: "Taxes":

         "The Company shall pay, and shall cause each of its Subsidiaries to
pay, prior to delinquency, all material taxes, assessments, and governmental
levies except such as are contested in good faith and by appropriate proceedings
or where the failure to effect such payment is not adverse in any material
respect to the Holders of the Notes."

         is hereby deleted in its entirety and replaced by the following:
"Intentionally Omitted."

         5. The following Section 4.06: "Stay, Extension and Usury Laws":

         "The Company and each of the Guarantors covenants (to the extent that
it may lawfully do so) that it shall not at any time insist upon, plead, or in
any manner whatsoever claim or take the benefit or advantage of, any stay,
extension or usury law wherever enacted, now or at

                                      A-4
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any time hereafter in force, that may affect the covenants or the performance of
this Indenture; and the Company and each of the Guarantors (to the extent that
it may lawfully do so) hereby expressly waives all benefit or advantage of any
such law, and covenants that it shall not, by resort to any such law, hinder,
delay or impede the execution of any power herein granted to the Trustee, but
shall suffer and permit the execution of every such power as though no such law
has been enacted."

         is hereby deleted in its entirety and replaced by the following:
"Intentionally Omitted."

         6. The following Section 4.07: "Restricted Payments":

         "The Company shall not, and shall not permit any of its Restricted
Subsidiaries to, directly or indirectly:

         (i) declare or pay any dividend or make any other payment or
distribution on account of the Company's or any of its Restricted Subsidiaries'
Equity Interests (including, without limitation, any payment in connection with
any merger or consolidation involving the Company or any of its Restricted
Subsidiaries) or to the direct or indirect holders of the Company's or any of
its Restricted Subsidiaries' Equity Interests in their capacity as such (other
than dividends or distributions payable in Equity Interests (other than
Disqualified Stock) of the Company or payable to the Company or a Restricted
Subsidiary of the Company);

         (ii) purchase, redeem or otherwise acquire or retire for value
(including, without limitation, in connection with any merger or consolidation
involving the Company) any Equity Interests of the Company or any direct or
indirect parent of the Company;

         (iii) make any payment on or with respect to, or purchase, redeem,
defease or otherwise acquire or retire for value any Indebtedness that is
subordinated to the Notes or the Subsidiary Guarantees, except a payment of
interest or principal at or after the Stated Maturity thereof; or

         (iv) make any Restricted Investment (all such payments and other
actions set forth in clauses (i) through (iv) above being collectively referred
to as "Restricted Payments"),

         unless, at the time of and after giving effect to such Restricted
Payment:

         (i) no Default or Event of Default shall have occurred and be
continuing or would occur as a consequence thereof; and

         (ii) the Company would, at the time of such Restricted Payment and
after giving pro forma effect thereto as if such Restricted Payment had been
made at the beginning of the applicable four-quarter period, have been permitted
to incur at least $1.00 of additional Indebtedness pursuant to the Fixed Charge
Coverage Ratio test set forth in the first paragraph of Section 4.09 hereof; and

                                      A-5
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         (iii) such Restricted Payment, together with the aggregate amount of
all other Restricted Payments made by the Company and its Restricted
Subsidiaries after the date of this Indenture (excluding Restricted Payments
permitted by clauses (ii) through (x) of the next succeeding paragraph and the
aggregate amount of outstanding Permitted Investments allowed pursuant to clause
(xvi) of the definition of Permitted Investments), is less than the sum, without
duplication, of:

                  (A) 50% of the Consolidated Net Income of the Company for the
         period (taken as one accounting period) from the beginning of the first
         fiscal quarter ending after the date of this Indenture to the end of
         the Company's most recently ended fiscal quarter for which internal
         financial statements are available at the time of such Restricted
         Payment (or, if such Consolidated Net Income for such period is a
         deficit, less 100% of such deficit), plus

                  (B) 100% of the aggregate net cash proceeds received by the
         Company since the date of this Indenture as a contribution to its
         equity capital (other than Disqualified Stock) or from the issue or
         sale of Equity Interests of the Company (other than Disqualified Stock)
         or from the issue or sale of convertible or exchangeable Disqualified
         Stock or convertible or exchangeable debt securities of the Company
         that have been converted into or exchanged for such Equity Interests
         (other than Equity Interests (or Disqualified Stock or debt securities)
         sold to a Subsidiary of the Company), plus

                  (C) the lesser of (x) all cash returns (including dividends,
         interest, distributions, returns of principal and profits on sale) on
         Restricted Investments that were made after the date of this Indenture
         (less the cost of disposition, if any); provided that the amount of
         cash return on such Restricted Investment shall be excluded from
         Consolidated Net Income for purposes of calculating clause (iii)(A)
         above on an after tax basis to the extent included in Consolidated Net
         Income, and (y) the initial amount of such Restricted Investment, plus

                  (D) upon redesignation of an Unrestricted Subsidiary as a
         Restricted Subsidiary not in violation of this Indenture, the fair
         market value of the net assets of such Subsidiary.

         The preceding provisions shall not prohibit:

         (i) the payment of any dividend within 60 days after the date of
declaration thereof, if at said date of declaration such payment would have
complied with the provisions of this Indenture;

         (ii) the redemption, repurchase, retirement, defeasance or other
acquisition of any subordinated Indebtedness of the Company or any Guarantor or
of any Equity Interests of the Company in exchange for, or out of the net cash
proceeds of the substantially concurrent sale (other than to a Restricted
Subsidiary of the Company) of, Equity Interests of the Company (other than
Disqualified Stock); provided that the amount of any such net cash proceeds that
are

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utilized for any such redemption, repurchase, retirement, defeasance or other
acquisition shall be excluded from clause (iii)(B) of the preceding paragraph;

         (iii) the defeasance, redemption, repurchase or other acquisition of
subordinated Indebtedness of the Company or any Guarantor with the net cash
proceeds from an incurrence of Permitted Refinancing Indebtedness;

         (iv) the payment of any dividend by a Restricted Subsidiary of the
Company to the holders of its common Equity Interests on pro rata basis;

         (v) the declaration and payment of dividends to holders of any class or
series of Disqualified Stock of the Company issued after the date of this
Indenture in accordance with Section 4.09 hereof;

         (vi) the declaration and payment of regularly accruing dividends to
holders of any class or series of Designated Preferred Stock of the Company
issued on or after the date of this Indenture; provided that at the time of the
designation of such Preferred Stock as Designated Preferred Stock, and after
giving effect to such designation on a pro forma basis (for purposes of making
determinations on a pro forma basis pursuant to this clause (vi), treating all
dividends which will accrue on such Designated Preferred Stock during the four
full fiscal quarters immediately following such issuance, as well as all other
Designated Preferred Stock then outstanding, as if the same will in fact be, or
have in fact been, paid in cash), the Company would have been able to incur at
least $1.00 of additional Indebtedness (other than Permitted Debt) in accordance
with Section 4.09 hereof;

         (vii) the retirement of any shares of Disqualified Stock of the Company
by conversion into, or by exchange for, shares of Refinancing Disqualified Stock
of the Company, or out of the Net Proceeds of the substantially concurrent sale
(other than to a Subsidiary of the Company) of other shares of Refinancing
Disqualified Stock of the Company;

         (viii) payments to JLL Healthcare LLC in an amount not to exceed
$500,000 per annum to pay its operating and administrative expenses incurred in
the ordinary course of business;

         (ix) payments pursuant to the Tax Sharing Agreement; and

         (x) the repurchase, redemption or other acquisition or retirement for
value of any Equity Interests of the Company or any Restricted Subsidiary of the
Company held by any member of the Company's (or any of its Restricted
Subsidiaries') management pursuant to any management equity subscription
agreement or stock option agreement in effect as of the date of this Indenture;
provided that the aggregate price paid (excluding the cancellation of debt owing
by such management member) for all such repurchased, redeemed, acquired or
retired Equity Interests shall not exceed $2.0 million in any twelve-month
period.

         The amount of all Restricted Payments (other than cash) shall be the
fair market value on the date of the Restricted Payment of the asset(s) or
securities proposed to be

                                      A-7
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transferred or issued to or by the Company or such Restricted Subsidiary, as the
case may be, pursuant to the Restricted Payment. The fair market value of any
assets or securities that are required to be valued by this Section 4.07 shall
be determined by the Board of Directors.

         For purposes of determining compliance with this Section 4.07, in the
event that a Restricted Payment meets the criteria of more than one of the types
of Restricted Payments described in the above clauses, the Company, in its sole
discretion, may order and classify, and from time to time may reorder and
reclassify, such Restricted Payment if it would have been permitted at the time
such Restricted Payment was made and at the time of any such reclassification."

         is hereby deleted in its entirety and replaced by the following:
"Intentionally Omitted."

         7. The following Section 4.08: "Dividend and Other Payment Restrictions
Affecting Subsidiaries":

         "The Company shall not, and shall not permit any of its Restricted
Subsidiaries to, directly or indirectly, create or permit to exist or become
effective any consensual encumbrance or restriction on the ability of any
Restricted Subsidiary to:

         (i) pay dividends or make any other distributions on its Capital Stock
to the Company or any of its Restricted Subsidiaries, or with respect to any
other interest or participation in, or measured by, its profits, or pay any
indebtedness owed to the Company or any of its Restricted Subsidiaries;

         (ii) make loans or advances to the Company or any of its Restricted
Subsidiaries; or

         (iii) transfer any of its properties or assets to the Company or any of
its Restricted Subsidiaries.

         However, the preceding restrictions shall not apply to encumbrances or
restrictions existing under or by reasons of:

         (i) Existing Indebtedness as in effect on the date of this Indenture
and any amendments, modifications, restatements, renewals, increases,
supplements, refundings, replacements or refinancings thereof, provided that
such amendments, modifications, restatements, renewals, increases, supplements,
refundings, replacement or refinancings are no more restrictive, taken as a
whole, with respect to such dividend and other payment restrictions than those
contained in such Existing Indebtedness, as in effect on the date of this
Indenture;

         (ii) this Indenture, the Notes and the Subsidiary Guarantees;

         (iii) applicable law;

                                      A-8
<PAGE>

         (iv) any contract or Capital Stock of a Person acquired by the Company
or any of its Restricted Subsidiaries as in effect at the time of such
acquisition (except to the extent such contract was entered into in connection
with or in contemplation of such acquisition), which encumbrance or restriction
is not applicable to any Person, or the properties or assets of any Person,
other than the Person and its Subsidiaries, or the property or assets of the
Person and its Subsidiaries, so acquired, provided that, in the case of any such
contract evidencing Indebtedness, such Indebtedness was permitted by the terms
of this Indenture to be incurred;

         (v) customary non-assignment provisions in leases or other agreements
entered into in the ordinary course of business and consistent with past
practices;

         (vi) customary restrictions in Capital Lease Obligations, security
agreements or mortgages securing Indebtedness of the Company or a Restricted
Subsidiary to the extent such restrictions restrict the transfer of the property
subject to such Capital Lease Obligations, security agreements and mortgages;

         (vii) any agreement for the sale or other disposition of a Restricted
Subsidiary that restricts distributions by that Restricted Subsidiary pending
its sale or other disposition;

         (viii) Permitted Refinancing Indebtedness, provided that the
restrictions contained in the agreements governing such Permitted Refinancing
Indebtedness are no more restrictive, taken as a whole, than those contained in
the agreements governing the Indebtedness being refinanced;

         (ix) Liens securing Indebtedness that limit the right of the debtor to
dispose of the assets subject to such Lien;

         (x) provisions with respect to the disposition or distribution of
assets or property in joint venture agreements, asset sale agreements, stock
sale agreements and other similar agreements entered into in the ordinary course
of business;

         (xi) restrictions on cash or other deposits or net worth imposed by
customers under contracts entered into in the ordinary course of business;

         (xii) contracts entered into in the ordinary course of business, not
relating to any Indebtedness, and that do not, individually or in the aggregate,
detract from the value of property or assets of the Company or any Restricted
Subsidiary in any manner material to the Company or any Restricted Subsidiary;

         (xiii) customary provisions restricting dispositions of real property
interests set forth in any reciprocal easement agreements of the Company or any
Restricted Subsidiary;

         (xiv) Indebtedness or other contractual requirements of a Receivables
Subsidiary in connection with a Qualified Receivables Transaction, provided that
such restrictions apply only to such Receivables Subsidiary; and

                                      A-9
<PAGE>

         (xv) restrictions on the transfer of property or assets required by any
regulatory authority having jurisdiction over the Company or any Restricted
Subsidiary or any of their businesses."

         is hereby deleted in its entirety and replaced by the following:
"Intentionally Omitted."

         8. The following "Section 4.09: Incurrence of Indebtedness and Issuance
of Preferred Stock":

         "The Company shall not, and shall not permit any of its Restricted
Subsidiaries to, directly or indirectly, create, incur, issue, assume, guarantee
or otherwise become directly or indirectly liable, contingently or otherwise,
with respect to (collectively, "incur") any Indebtedness (including Acquired
Debt), and the Company shall not issue any Disqualified Stock and shall not
permit any of its Restricted Subsidiaries to issue any shares of preferred
stock; provided, however, that the Company may incur Indebtedness (including
Acquired Debt) or issue Disqualified Stock, and the Guarantors may incur
Indebtedness or issue preferred stock, if the Fixed Charge Coverage Ratio for
the Company's most recently ended four full fiscal quarters for which financial
statements are available immediately preceding the date on which such additional
Indebtedness is incurred or such Disqualified Stock or preferred stock is issued
would have been at least 2.0 to 1, if such additional Indebtedness is incurred
or such Disqualified Stock or preferred stock is issued on or prior to October
15, 2002, or 2.25 to 1, if such additional Indebtedness is incurred or such
Disqualified Stock or preferred stock is issued thereafter, determined on a pro
forma basis (including a pro forma application of the net proceeds therefrom),
as if the additional Indebtedness had been incurred or the preferred stock or
Disqualified Stock had been issued, as the case may be, at, the beginning of
such four-quarter period;

         The first paragraph of this Section 4.09 shall not prohibit any of the
following (collectively, "Permitted Debt"):

         (i) the incurrence by the Company and any Guarantor of additional
Indebtedness and letters of credit under Credit Facilities in an aggregate
principal amount at any one time outstanding under this clause (i) (with letters
of credit being deemed to have a principal amount equal to the face amount
thereof) not to exceed $330.0 million plus the greater of (x) $125.0 million and
(y) the amount equal to 85% of the net book value of receivables and 65% of the
net book value of inventory of the Company and its Restricted Subsidiaries on a
consolidated basis at the time such Indebtedness is incurred, as determined in
accordance with GAAP, less the aggregate amount of all scheduled repayments and
mandatory prepayments, of the principal amount of any term Indebtedness under a
Credit Facility (other than repayments that are concurrently reborrowed) that
have actually been made since the date of this Indenture and less the aggregate
amount of all Net Proceeds of Asset Sales that have actually been applied by the
Company or any of its Restricted Subsidiaries since the date of this Indenture
to repay revolving credit Indebtedness to the extent that the corresponding
revolving credit commitments have been permanently reduced under a Credit
Facility pursuant to Section 4.10 hereof (provided that such amount shall be
reduced to the extent of any reduction or elimination of any commitment under

                                      A-10
<PAGE>

any Credit Facility resulting from or relating to the consummation of any
Qualified Receivables Transaction; provided that such reduction shall apply only
for so long as such Qualified Receivables Transaction is in effect);

         (ii) the incurrence by the Company and its Restricted Subsidiaries of
the Existing Indebtedness;

         (iii) the incurrence by the Company and the Guarantors of Indebtedness
represented by the Notes and the related Subsidiary Guarantees to be issued on
the date of this Indenture and the Exchange Notes and the related Subsidiary
Guarantees to be issued pursuant to the Registration Rights Agreement;

         (iv) the incurrence by the Company or any of its Restricted
Subsidiaries of Indebtedness represented by Capital Lease Obligations, mortgage
financings or purchase money obligations, in each case, incurred for the purpose
of financing all or any part of the purchase price or cost of construction or
improvement of property, plant or equipment used in the business of the Company
or such Restricted Subsidiary, in an aggregate principal amount, including all
Permitted Refinancing Indebtedness incurred to refund, refinance or replace any
Indebtedness incurred pursuant to this clause (iv), not to exceed the greater of
$25.0 million and 3% of Total Assets at any time outstanding;

         (v) the incurrence by the Company or any of its Restricted Subsidiaries
of Permitted Refinancing Indebtedness in exchange for, or the net proceeds of
which are used to refund, refinance or replace Indebtedness (other than
intercompany Indebtedness) that was permitted by this Indenture to be incurred
under the first paragraph of this Section 4.09 or clauses (ii), (iii), (iv),
(v), (xiv) or (xviii) of this paragraph;

         (vi) the incurrence by the Company or any of its Restricted
Subsidiaries of intercompany Indebtedness between or among the Company and any
of its Restricted Subsidiaries; provided, however, that:

                  (A) if the Company or any Guarantor is the obligor on such
         Indebtedness, unless such Indebtedness is owing to the Company or
         another Guarantor, such Indebtedness must be expressly subordinated to
         the prior payment in full in cash of all Obligations with respect to
         the Notes, in the case of the Company, or the Subsidiary Guarantee, in
         the case of a Guarantor; and

                  (B) (x) any subsequent issuance or transfer of Equity
         Interests that results in any such Indebtedness being held by a Person
         other than the Company or a Restricted Subsidiary thereof and (y) any
         sale or other transfer of any such Indebtedness to a Person that is not
         either the Company or a Restricted Subsidiary thereof; shall be deemed,
         in each case, to constitute an incurrence of such Indebtedness by the
         Company or such Restricted Subsidiary, as the case may be, that was not
         permitted by this clause (vi);

         (vii) the issuance by any Restricted Subsidiary of preferred stock to
the Company and any of its Restricted Subsidiaries; provided, however, that (a)
any subsequent

                                      A-11
<PAGE>

issuance or transfer of Equity Interests that results in any such preferred
stock being held by a Person other than the Company or a Restricted Subsidiary
thereof and (b) any sale or other transfer of any such preferred stock to a
Person that is not either the Company or a Restricted Subsidiary thereof; shall
be deemed, in each case, to constitute an issuance of such preferred stock by
such Restricted Subsidiary that was not permitted by this clause (vii);

         (viii) the issuance of Refinancing Disqualified Stock, Refinancing
Preferred Stock and Refinancing Subsidiary Preferred Stock;

         (ix) the incurrence by the Company or any of its Restricted
Subsidiaries of Hedging Obligations that are incurred for the purpose of fixing
or hedging (x) interest rate risk with respect to any floating or fixed rate
Indebtedness that is permitted by the terms of this Indenture to be outstanding
or (y) fluctuations in foreign currency exchange rates or commodity prices, with
respect to currencies or commodities used by the Company or its Restricted
Subsidiaries in the ordinary course of business;

         (x) the guarantee by the Company or any of the Guarantors of
Indebtedness of the Company or a Restricted Subsidiary of the Company that was
permitted to be incurred by another provision of this Section 4.09;

         (xi) the accrual of interest, the accretion or amortization of original
issue discount, the payment of interest on any Indebtedness in the form of
additional Indebtedness with the same terms, and the payment of dividends on
Disqualified Stock in the form of additional shares of the same class of
Disqualified Stock shall not be deemed to be an incurrence of Indebtedness or an
issuance of Disqualified Stock for purposes of this Section 4.09; provided, in
each such case, that the amount thereof is included in Fixed Charges of the
Company as accrued;

         (xii) Indebtedness of the Company or any Restricted Subsidiary arising
from the honoring by a bank or other financial institution of a check, draft or
similar instrument inadvertently (except in the case of daylight overdrafts)
drawn against insufficient funds in the ordinary course of business; provided,
that such Indebtedness is extinguished within five business days of incurrence;

         (xiii) Indebtedness of the Company or any of its Restricted
Subsidiaries represented by letters of credit for the account of the Company or
such Restricted Subsidiary, as the case may be, including, without limitation,
in order to provide security for workers' compensation claims or payment
obligations in connection with self-insurance and other Indebtedness with
respect to workers' compensation claims, self-insurance and similar obligations
of the Company or any Restricted Subsidiary;

         (xiv) the incurrence by the Company of additional Indebtedness in an
aggregate principal amount (or accreted value, as applicable) (which amount may,
but need not be, incurred in whole or in part under the Credit Facilities) at
any time outstanding, including all Permitted Refinancing Indebtedness incurred
to refund, refinance or replace any Indebtedness incurred pursuant to this
clause (xiv), not to exceed $65.0 million;

                                      A-12
<PAGE>

         (xv) Indebtedness arising from any agreement entered into by the
Company or any of its Restricted Subsidiaries providing for indemnification,
purchase price adjustment, holdback, contingency payment obligations based on
the performance of the acquired or disposed assets or similar obligations (other
than Guarantees of Indebtedness) incurred by any Person in connection with the
acquisition or disposition of assets permitted by this Indenture;

         (xvi) trade letters of credit, performance and surety bonds, completion
guarantees or similar arrangements of the Company or any of its Restricted
Subsidiaries in the ordinary course of business;

         (xvii) Physician Support Obligations incurred by the Company or any of
its Restricted Subsidiaries;

         (xviii) Acquired Debt of Restricted Subsidiaries acquired or assumed by
the Company or another Restricted Subsidiary of the Company, or resulting from
the merger or consolidation of one or more Persons into or with one or more
Restricted Subsidiaries of the Company; provided, that (a) such Acquired Debt is
not incurred in contemplation of the respective acquisition, merger or
consolidation, and (b) after giving effect to any Acquired Debt acquired or
assumed pursuant to this clause (xviii), the Company would be permitted to incur
at least $1.00 of additional Indebtedness pursuant to the Fixed Charge Coverage
Ratio test set forth in the first paragraph of this Section 4.09; and

         (xix) the incurrence by a Receivables Subsidiary of Indebtedness in a
Qualified Receivables Transaction.

         For purposes of determining compliance with this Section 4.09, in the
event that an item of proposed Indebtedness meets the criteria of more than one
of the categories of Permitted Debt described in clauses (i) through (xix)
above, or is entitled to be incurred pursuant to the first paragraph of this
Section 4.09, the Company shall be permitted to classify such item of
Indebtedness on the date of its incurrence, or from time to time reclassify all
or a portion of such item of Indebtedness, in any manner that complies with this
Section 4.09. Indebtedness under Credit Facilities outstanding on the date on
which Notes are first issued and authenticated under this Indenture shall be
deemed to have been incurred on such date in reliance on the exception provided
by clause (i) of the definition of Permitted Debt."

         is hereby deleted in its entirety and replaced by the following:
"Intentionally Omitted."

         9. The following Section 4.10: "Asset Sales":

         "The Company shall not, and shall not permit any of its Restricted
Subsidiaries to, consummate an Asset Sale unless:

                                      A-13
<PAGE>

         (i) the Company (or the Restricted Subsidiary, as the case may be)
receives consideration at the time of such Asset Sale at least equal to the fair
market value of the assets or Equity Interests issued or sold or otherwise
disposed of;

         (ii) such fair market value is determined by the Company's Board of
Directors and evidenced by a resolution of the Board of Directors; and

         (iii) at least 75% of the consideration therefor received by the
Company or such Restricted Subsidiary is in the form of cash or Cash Equivalents
other than in the case where the Company or such Restricted Subsidiary is
undertaking a Hospital Swap. For purposes of this provision, each of the
following shall be deemed to be cash:

                  (A) any liabilities (as shown on the Company's or such
         Restricted Subsidiary's most recent balance sheet), of the Company or
         any Restricted Subsidiary (other than contingent liabilities and
         liabilities that are by their terms subordinated to the Notes or any
         Subsidiary Guarantee) that are assumed by the transferee of any such
         assets pursuant to a novation agreement that releases the Company or
         such Restricted Subsidiary from further liability; and

                  (B) any securities, notes or other obligations received by the
         Company or any such Restricted Subsidiary from such transferee that are
         (subject to ordinary settlement periods) converted by the Company or
         such Restricted Subsidiary into cash (to the extent of the cash
         received in that conversion) within 180 days of the applicable Asset
         Sale.

         Notwithstanding the foregoing, the 75% limitation referred to in clause
(iii) shall not apply to any Asset Sale in which the cash or Cash Equivalents
portion of the consideration received therefrom, determined in accordance with
the foregoing provision, is equal to or greater than what the after-tax proceeds
would have been had such Asset Sale complied with the aforementioned 75%
limitation.

         Within 365 days after the receipt of any Net Proceeds from an Asset
Sale, the Company may apply such Net Proceeds at its option:

         (i) to repay Senior Debt and, if the Senior Debt repaid is revolving
credit Indebtedness, to correspondingly reduce commitments with respect thereto;

         (ii) to acquire all or substantially all of the assets of, or the
Voting Stock of, another Permitted Business;

         (iii) to make capital expenditures; or

         (iv) to acquire other assets that are used or useful in a Permitted
Business;

provided that the requirements of clauses (ii)-(iv) above shall be deemed to be
satisfied if an agreement (including a lease, whether a capital lease or an
operating lease) committing to make the acquisitions or expenditures referred to
therein is entered into by the Company or its

                                      A-14
<PAGE>

Restricted Subsidiary within 365 days after the receipt of such Net Proceeds and
such Net Proceeds are applied in accordance with such agreement.

         Notwithstanding the foregoing, in the event that a Restricted
Subsidiary dividends or distributes to all of its stockholders on a pro rata
basis any proceeds of an Asset Sale to the Company or another Restricted
Subsidiary, the Company or such Restricted Subsidiary need only apply its share
of such proceeds in accordance with the preceding clauses (i) through (iv).

         Pending the final application of any such Net Proceeds, the Company may
temporarily reduce revolving credit borrowings or otherwise invest such Net
Proceeds in any manner that is not prohibited by this Indenture.

         Any Net Proceeds from Asset Sales that are not applied or invested as
provided in the preceding paragraph will constitute "Excess Proceeds." When the
aggregate amount of Excess Proceeds exceeds $10.0 million, the Company shall
make an Asset Sale Offer to all Holders of Notes and all holders of other
Indebtedness that is pari passu with the Notes containing provisions similar to
those set forth in this Indenture with respect to offers to purchase or redeem
with the proceeds of sales of assets to purchase the maximum principal amount of
Notes and such other pari passu Indebtedness that may be purchased out of the
Excess Proceeds. The offer price in any Asset Sale Offer will be equal to 100%
of principal amount plus accrued and unpaid interest and Liquidated Damages, if
any, to the date of purchase, and will be payable in cash. If any Excess
Proceeds remain after consummation of an Asset Sale Offer, the Company may use
such Excess Proceeds for any purpose not otherwise prohibited by this Indenture.
If the aggregate principal amount of Notes and such other pari passu
Indebtedness tendered into such Asset Sale Offer exceeds the amount of Excess
Proceeds, the Trustee shall select the Notes and such other pari passu
Indebtedness to be purchased on a pro rata basis based on the principal amount
of Notes and such other pari passu Indebtedness tendered. Upon completion of
each Asset Sale Offer, the amount of Excess Proceeds shall be reset at zero.

         The Company shall comply with the requirements of Rule 14e-l under the
Exchange Act and any other securities laws and regulations thereunder to the
extent such laws and regulations are applicable in connection with each
repurchase of Notes pursuant to an Asset Sale Offer. To the extent that the
provisions of any securities laws or regulations conflict with the Asset Sales
provisions of this Indenture, the Company shall comply with the applicable
securities laws and regulations and shall not be deemed to have breached its
obligations under the Asset Sale provisions of this Indenture by virtue of such
conflict.

         The agreements governing the Company's outstanding Senior Debt
currently prohibit the Company from purchasing any Notes, and also provides that
certain change of control or asset sale events with respect to the Company would
constitute a default under these agreements. Any future credit agreements or
other agreements relating to Senior Debt to which the Company becomes a party
may contain similar restrictions and provisions. In the event a Change of
Control or Asset Sale occurs at a time when the Company is prohibited from
purchasing Notes, the Company could seek the consent of its senior lenders to
the purchase of Notes or could attempt to refinance the borrowings that contain
such prohibition. If the Company does not obtain such a consent or repay such
borrowings, the Company shall remain

                                      A-15
<PAGE>

prohibited from purchasing Notes. In such case, the Company's failure to
purchase tendered Notes would constitute an Event of Default under this
Indenture which would, in turn, constitute a default under such Senior Debt. In
such circumstances, the subordination provisions in this Indenture would likely
restrict payments to the Holders of Notes."

         is hereby deleted in its entirety and replaced by the following:
"Intentionally Omitted."

         10. The following Section 4.11: "Transactions with Affiliates":

         "The Company shall not, and shall not permit any of its Restricted
Subsidiaries to, make any payment to, or sell, lease, transfer or otherwise
dispose of any of its properties or assets to, or purchase any property or
assets from, or enter into or make or amend any transaction, contract,
agreement, understanding, loan, advance or guarantee with, or for the benefit
of, any Affiliate (each, an "Affiliate Transaction"), unless:

         (i) such Affiliate Transaction is on terms that are no less favorable
to the Company or the relevant Restricted Subsidiary than those that would have
been obtained in a comparable transaction by the Company or such Restricted
Subsidiary with an unrelated Person; and

         (ii) the Company delivers to the Trustee:

                  (A) with respect to any Affiliate Transaction or series of
         related Affiliate Transactions involving aggregate consideration in
         excess of $5.0 million, a resolution of the Board of Directors set
         forth in an Officers' Certificate certifying that such Affiliate
         Transaction complies with this Section 4.11 and that such Affiliate
         Transaction has been approved by a majority of the disinterested
         members of the Board of Directors; and

                  (B) with respect to any Affiliate Transaction or series of
         related Affiliate Transactions involving aggregate consideration in
         excess of $10.0 million, an opinion as to the fairness to the Holders
         of such Affiliate Transaction from a financial point of view issued by
         an accounting, appraisal or investment banking firm of national
         standing.

         The following items shall not be deemed to be Affiliate Transactions
and, therefore, will not be subject to the provisions of the prior paragraph:

         (i) reasonable fees and compensation paid to, and indemnity and similar
arrangements provided on behalf of, officers, directors or employees of the
Company or any Restricted Subsidiary of the Company as determined in good faith
by the Company's Board of Directors or senior management;

         (ii) transactions between or among the Company and/or its Restricted
Subsidiaries;

                                      A-16
<PAGE>

         (iii) the payment of management fees to any Affiliate of the Company
not to exceed in the aggregate to all Affiliates, in any twelve-month period,
the greater of (a) $1.0 million and (b) an amount equal to 1% of Consolidated
Cash Flow and the reimbursement of expenses incurred by Affiliates from time to
time in the course of providing management, investment banking, commercial
banking, or financial advisory services to, or monitoring their investments in,
the Company;

         (iv) Restricted Payments that are permitted by the provisions of
Section 4.07;

         (v) loans and advances to officers and employees of the Company or any
of its Restricted Subsidiaries for bona fide business purposes in the ordinary
course of business;

         (vi) transactions between the Company and any of its Affiliates
involving investment banking, commercial banking, financial advisory and related
activities;

         (vii) issuances of securities or payments or distributions in
connection with employment incentive plans, employee stock plans, employees
stock option plans and similar plans and arrangements approved by the Board of
Directors of the Company;

         (viii) sales and issuances of the Capital Stock of the Company (other
than Disqualified Stock) to the extent otherwise permitted under this Indenture;

         (ix) any agreements or arrangements in effect on, or entered into on or
prior to, the date of this Indenture (including the Tax Sharing Agreement), or
any amendment, modification, or supplement thereto or any replacement thereof,
so long as any such amendment, modification, supplement or replacement agreement
is not materially more disadvantageous to the Holders of the Notes than the
original agreements as in effect on the date of this Indenture, and any
transactions contemplated by any of the foregoing agreements or arrangements;

         (x) the existence of, or the performance by the Company or any of its
Restricted Subsidiaries of its obligations under the terms of, any stockholders
agreement, partnership agreement or limited liability company members agreement
(including any registration rights agreement or purchase agreement related
thereto) to which it is a party as of the date of this Indenture and any similar
agreements which it may enter into thereafter, in each case subject to
compliance with the other provisions of this Indenture; provided, however, that
the existence, or the performance by the Company or any of its Restricted
Subsidiaries of obligations under any future amendment to any such existing
agreement or under any similar agreement entered into after the date of this
Indenture shall only be permitted by this clause (x) to the extent that the
terms (taken as a whole) of any such amendment or new agreement are not
otherwise materially disadvantageous to the holders of the Notes;

         (xi) payments in respect of fees, costs and expenses incurred in
connection with the Transactions; and

                                      A-17
<PAGE>

         (xii) transactions between or among the Company and/or its Subsidiaries
or transactions between a Receivables Subsidiary and any Person in which the
Receivables Subsidiary has an Investment."

         is hereby deleted in its entirety and replaced by the following:
"Intentionally Omitted."

         11. The following Section 4.12: "Liens":

         "The Company shall not, and shall not permit any of its Restricted
Subsidiaries to, directly or indirectly, create, incur, assume or suffer to
exist any Lien of any kind securing Indebtedness or trade payables on any asset
now owned or hereafter acquired, except Permitted Liens, unless:

         (i) if such Lien secures Indebtedness which is subordinated to the
Notes, any such Lien shall be subordinated to the Lien granted to the holders of
the Notes to the same extent as such Indebtedness is subordinated to the Notes;
and

         (ii) in all other cases, the Notes are equally and ratably secured."

         is hereby deleted in its entirety and replaced by the following:
"Intentionally Omitted."

         12. The following Section 4.14: "Offer to Repurchase Upon Change of
Control":

         (a) If a Change of Control occurs, each Holder of Notes shall have the
right to require the Company to repurchase all or any part (equal to $1,000 or
an integral multiple thereof) of that Holder's Notes pursuant to the offer
described below (the "Change of Control Offer") on the terms set forth in this
Section 4.14. In the Change of Control Offer, the Company shall offer payment in
cash equal to 101% of the aggregate principal amount of Notes repurchased plus
accrued and unpaid interest and Liquidated Damages, if any, thereon, to the date
of purchase (the "Change of Control Payment"). Within 30 days following any
Change of Control, the company shall mail a notice to each Holder describing the
transaction or transactions that constitute the Change of Control and offering
to repurchase Notes on the Change of Control Payment Date specified in such
notice (the "Change of Control Payment Date"), which date shall be no earlier
than 30 days and no later than 60 days from the date such notice is mailed,
pursuant to the procedures required by this Indenture and described in such
notice. The Company shall comply with the requirements of Rule 14e-1 under the
Exchange Act and any other securities laws and regulations thereunder to the
extent such laws and regulations are applicable in connection with the
repurchase of the Notes as a result of a Change of Control. To the extent that
the provisions of any securities laws or regulations conflict with the
provisions of this Section 4.14, the Company shall comply with the applicable
securities laws and regulations and shall not be deemed to have breached its
obligations under the provisions of this Section 4.14 by virtue of such
conflict.

                                      A-18
<PAGE>

         On the Change of Control Payment Date, the Company shall, to the extent
lawful:

         (i) accept for payment all Notes or portions thereof properly tendered
pursuant to the Change of Control Offer;

         (ii) deposit with the Paying Agent an amount equal to the Change of
Control Payment in respect of all Notes or portions thereof so tendered; and

         (iii) deliver or cause to be delivered to the Trustee the Notes so
accepted together with an Officers' Certificate stating the aggregate principal
amount of Notes or portions thereof being purchased by the Company.

         (b) The Paying Agent shall promptly mail to each Holder of Notes so
tendered the Change of Control Payment for such Notes, and the Trustee will
promptly authenticate and mail (or cause to be transferred by book entry) to
each Holder a new Note equal in principal amount to any unpurchased portion of
the Notes surrendered, if any; provided that each such new Note shall be in a
principal amount of $1,000 or an integral multiple thereof.

         (c) Prior to complying with any of the provisions of this Section 4.14,
but in any event within 90 days following a, Change of Control, the Company
shall either repay all outstanding Senior Debt or obtain the requisite consents,
if any, under all agreements governing outstanding Senior Debt to permit the
repurchase of Notes required by this Section 4.14. The Company shall publicly
announce the results of the Change of Control Offer on or as soon as practicable
after the Change of Control Payment Date.

         (d) The Company shall first comply with the covenant in the first
sentence in the immediately preceding paragraph before it shall be required to
repurchase Notes pursuant to the provisions described above. The Company's
failure to comply with the covenant described in the immediately preceding
sentence may (with notice and lapse of time) constitute an Event of Default
described under clause (ii) under Section 6.01.

         (e) The provisions described above that require the Company to make a
Change of Control Offer following a Change of Control will be applicable
regardless of whether any other provisions of this Indenture are applicable.
Except as described above with respect to a Change of Control, this Indenture
does not contain provisions that permit the Holders of the Notes to require that
the Company repurchase or redeem the Notes in the event of a takeover,
recapitalization or similar transaction.

         (f) Notwithstanding anything to the contrary in this Section 4.14, the
Company shall not be required to make a Change of Control Offer upon a Change of
Control if a third party makes the Change of Control Offer in the manner, at the
times and otherwise in compliance with the requirements set forth in this
Section 4.14 and Section 3.09 hereof and all other provisions of this Indenture
applicable to a Change of Control Offer made by the Company and purchases all
Notes validly tendered and not withdrawn under such Change of Control Offer."

                                      A-19
<PAGE>

         is hereby deleted in its entirety and replaced by the following:
"Intentionally Omitted."

         13. The following Section 4.15: "No Senior Subordinated Debt":

         "The Company shall not incur, create, issue, assume, guarantee or
otherwise become liable for any Indebtedness that is subordinate or junior in
right of payment to any Senior Debt of the Company and senior in any respect in
right of payment to the Notes. No Guarantor shall incur, create, issue, assume,
guarantee or otherwise become liable for any Indebtedness that is subordinate or
junior in right of payment to the Senior Debt of such Guarantor and senior in
any respect in right of payment to such Guarantor's Subsidiary Guarantee."

         is hereby deleted in its entirety and replaced by the following:
"Intentionally Omitted."

         14. The following Section 4.16: "Additional Subsidiary Guarantees":

         "If the Company or any of its Restricted Subsidiaries acquires or
creates another Domestic Subsidiary or if any Restricted Subsidiary becomes a
Domestic Subsidiary of the Company after the date of this Indenture, then that
newly acquired or created Domestic Subsidiary must become a Guarantor and
execute a supplemental indenture and deliver an Opinion of Counsel to the
Trustee; provided, that no such Domestic Subsidiary shall be required to become
a Guarantor, execute a supplemental indenture and deliver an Opinion of Counsel
(a) for so long as a Credit Agreement shall be in effect, if it is not an
obligor thereunder and is not required to deliver a Guarantee under such Credit
Agreement of the obligations of the Company thereunder or (b) if such Domestic
Subsidiary is a Receivables Subsidiary."

         is hereby deleted in its entirety and replaced by the following:
"Intentionally Omitted."

         15. The following Section 4.17: "Business Activities":

         "The Company shall not, and shall not permit any Restricted Subsidiary
to, engage in any business other than Permitted Businesses, except to such
extent as would not be material to the Company and its Restricted Subsidiaries
taken as a whole. Any Receivables Subsidiary and any Subsidiary thereof may
engage in a business related or ancillary to a Qualified Receivables
Transaction."

         is hereby deleted in its entirety and replaced by the following:
"Intentionally Omitted."

         16. The following Section 4.18: "Designation of Restricted and
Unrestricted Subsidiaries" is hereby modified by deletion of the italicized
language:

         "The Board of Directors may designate any Restricted Subsidiary to be
an Unrestricted Subsidiary if that designation would not cause a Default. If a
Restricted Subsidiary

                                      A-20
<PAGE>

is designated as an Unrestricted Subsidiary, the aggregate fair market value of
all outstanding Investments owned by the Company and its Restricted Subsidiaries
in the Subsidiary so designated shall be deemed to be an Investment made as of
the time of such designation and shall either reduce the amount available for
Restricted Payments under the first paragraph of Section 4.07 hereof or reduce
the amount available for future Investments under one or more clauses of the
definition of Permitted Investments, as the Company shall determine. That
designation shall only be permitted if such Investment would be permitted at
that time and if such Restricted Subsidiary otherwise meets the definition of an
Unrestricted Subsidiary. The Board of Directors may redesignate any Unrestricted
Subsidiary to be a Restricted Subsidiary if the redesignation would not cause a
Default."

         17. Section 5.01: "Merger, Consolidation or Sale of Assets" is hereby
modified by addition of the bolded language:

         "(i) either: (A) the Company is the surviving corporation; or (B) the
Person formed by or surviving any such consolidation or merger (if other than
the Company) or to which such sale, assignment, transfer, conveyance or other
disposition shall have been made is a corporation OR A LIMITED LIABILITY COMPANY
organized or existing under the laws of the United States, any state thereof or
the District of Columbia;";

         deletion of the following:

         "(iv) the Company or the Person formed by or surviving any such
consolidation or merger (if other than the Company), or to which such sale,
assignment, transfer, conveyance or other disposition shall have been made,
shall, on the date of such transaction after giving pro forma effect thereto and
any related financing transactions as if the same had occurred at the beginning
of the applicable four-quarter period, be permitted to incur at least $1.00 of
additional Indebtedness pursuant to the Fixed Charge Coverage Ratio test set
forth in the first paragraph of Section 4.09 hereof.";

         deletion of the italicized language:

         "In addition, the Company shall not, directly or indirectly, lease all
or substantially all of its properties or assets, in one or more related
transactions, to any other Person. This Section 5.01 shall not apply to (x) a
merger, consolidation, sale, assignment, transfer, conveyance or other
disposition of assets between or among the Company and any Guarantor or (y)
transfers of accounts receivable and related assets of the type specified in the
definition of "Qualified Receivables Transaction" (or a fractional undivided
interest therein) by a Receivables Subsidiary in a Qualified Receivables
Transaction."; and

         deletion of the following:

         "Notwithstanding the foregoing clause (iv), the Company may merge with
an Affiliate incorporated or organized solely either (A) for the purpose of
reincorporating or reorganizing the Company in another jurisdiction or (B) to
realize tax benefits without complying with the foregoing clause (iv) provided,
that, immediately after giving effect to such

                                      A-21
<PAGE>

transaction on a pro forma basis, either (x) the surviving entity could incur at
least $1.00 of additional Indebtedness (other than Permitted Indebtedness) under
Section 4.09 hereof and (y) the Fixed Charge Coverage Ratio of the surviving
entity is not less than the Fixed Charge Coverage Ratio of the Company
immediately prior to such transaction and the surviving entity conducts no
business other than a Permitted Business except to such extent as would not be
material to such surviving entity and its Restricted Subsidiaries taken as a
whole."

         18. Section 6.01: "Events of Default" is hereby modified by deletion of
the following:

         "(v) default under any mortgage, indenture or instrument under which
there is issued or outstanding any Indebtedness for money borrowed by the
Company or any of its Restricted Subsidiaries (or the payment of which is
guaranteed by the Company or any of its Restricted Subsidiaries) whether such
Indebtedness or guarantee now exists, or is created after the date of this
Indenture, if that default:

                  (A) is caused by a failure to pay principal at the final
         stated maturity of such Indebtedness (a "Payment Default"); or

                  (B) results in the acceleration of such Indebtedness prior to
         its express maturity,

in the case of both clauses (A) and (B), only if the principal amount of any
such Indebtedness, together with the principal amount of any other such
Indebtedness under which there has been a Payment Default or the maturity of
which has been so accelerated, aggregates $10.0 million or more;

         (vi) failure by the Company or any of its Subsidiaries to pay final
judgments aggregating in excess of $10.0 million (net of any amounts covered by
insurance or indemnity arrangements provided by a reputable and creditworthy
insurance company or other Person), which judgments are not paid, discharged or
stayed for a period of 60 consecutive days after such judgments become final and
non-appealable;

         (vii) the Company or any of its Significant Subsidiaries or any group
of Subsidiaries that, taken as a whole, would constitute a Significant
Subsidiary pursuant to or within the meaning of Bankruptcy Law:

                  (A) commences a voluntary case,

                  (B) consents to the entry of an order for relief against it in
         an involuntary case,

                  (C) consents to the appointment of a custodian of it or for
         all or substantially all of its property,

                  (D) makes a general assignment for the benefit of its
         creditors, or

                                      A-22
<PAGE>

                  (E) generally is not paying its debts as they become due; or"

                                      A-23<PAGE>
                                                                    EXHIBIT 4.16

                             SUPPLEMENTAL INDENTURE

SUPPLEMENTAL INDENTURE (this "Supplemental Indenture"), dated as of June 30,
2004, among IASIS Finance Texas Holdings, LLC (the "Guaranteeing Subsidiary"), a
subsidiary of IASIS Healthcare LLC (or its permitted successor), (the
"Company"), the Company, IASIS Capital Corporation (or its permitted successor),
("IASIS Capital," and together with the Company, the "Issuers"), the other
Guarantors (as defined in the Indenture referred to herein) and The Bank of New
York Trust Company, N.A., as trustee under the Indenture referred to below (the
"Trustee").

                              W I T N E S S E T H

         WHEREAS, the Issuers have heretofore executed and delivered to the
Trustee an indenture (the "Indenture"), dated as of June 22, 2004 providing for
the issuance of 8-3/4% Senior Subordinated Notes due 2014 (the "Notes");

         WHEREAS, the Indenture provides that under certain circumstances the
Guaranteeing Subsidiary shall execute and deliver to the Trustee a supplemental
indenture pursuant to which the Guaranteeing Subsidiary shall unconditionally
guarantee all of the Company's Obligations under the Notes and the Indenture on
the terms and conditions set forth herein (the "Subsidiary Guarantee"); and

         WHEREAS, pursuant to Section 9.01 of the Indenture, the Trustee is
authorized to execute and deliver this Supplemental Indenture.

         NOW THEREFORE, in consideration of the foregoing and for other good and
valuable consideration, the receipt of which is hereby acknowledged, the Parties
mutually covenant and agree for the equal and ratable benefit of the Holders of
the Notes as follows:

         1. CAPITALIZED TERMS. Capitalized terms used herein without definition
shall have the meanings assigned to them in the Indenture.

         2. AGREEMENT TO GUARANTEE. The Guaranteeing Subsidiary hereby agrees to
provide an unconditional Guarantee on the terms and subject to the conditions
set forth in the Subsidiary Guarantee and in this Indenture including but not
limited to Article 11 thereof.

         3. NO RECOURSE AGAINST OTHERS. No past, present or future director,
officer, employee, incorporator, stockholder or agent of the Guaranteeing
Subsidiary, as such, shall have any liability for any obligations of the Issuers
or any Guaranteeing Subsidiary under the Notes, any Subsidiary Guarantees, the
Indenture or this Supplemental Indenture or for any claim based on, in respect
of, or by reason of, such obligations or their creation. Each Holder of the
Notes by accepting a Note waives and releases all such liability. The waiver and
release are part of the consideration for issuance of the Notes. Such waiver may
not be effective to waive liabilities under the federal securities laws and it
is the view of the SEC that such a waiver is against public policy.

         4. NEW YORK LAW TO GOVERN. THE INTERNAL LAW OF THE STATE OF NEW YORK
SHALL GOVERN AND BE USED TO CONSTRUE THIS SUPPLEMENTAL INDENTURE BUT WITHOUT
GIVING EFFECT TO APPLICABLE PRINCIPLES OF

<PAGE>

CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER
JURISDICTION WOULD BE REQUIRED THEREBY.

     5. COUNTERPARTS. The parties may sign any number of copies of this
Supplemental Indenture. Each signed copy shall be an original, but all of them
together represent the same agreement.

     6. EFFECT OF HEADINGS. The Section headings herein are for convenience only
and shall not affect the construction hereof.

     7. THE TRUSTEE. The Trustee shall not be responsible in any manner
whatsoever for or in respect of the validity or sufficiency of this Supplemental
Indenture or for or in respect of the recitals contained herein, all of which
recitals are made solely by the Guaranteeing Subsidiary and the Issuers.

                            [Signature Pages Follow]

                                       2
<PAGE>

IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture
to be duly executed, all as of the date first above written.

                                     IASIS FINANCE TEXAS HOLDINGS, LLC

                                     By:  /s/ Frank A. Coyle
                                         -------------------------------------
                                     Name:  Frank A. Coyle
                                     Title: Secretary

                                     IASIS HEALTHCARE LLC

                                     By:  /s/ W. Carl Whitmer
                                         -------------------------------------
                                     Name:  W. Carl Whitmer
                                     Title: Chief Financial Officer

                                     IASIS CAPITAL CORPORATION

                                     By:  /s/ W. Carl Whitmer
                                         -------------------------------------
                                     Name:  W. Carl Whitmer
                                     Title: Chief Financial Officer

                                     ARIZONA DIAGNOSTIC & SURGICAL CENTER, INC.
                                     BAPTIST JOINT VENTURE HOLDINGS, INC.
                                     BEAUMONT HOSPITAL HOLDINGS, INC.
                                     BILTMORE SURGERY CENTER, INC.
                                     BILTMORE SURGERY CENTER HOLDINGS, INC.
                                     BROOKWOOD DIAGNOSTIC CENTER OF TAMPA, INC.
                                     IASIS PHYSICIAN SERVICES, INC.
                                     CLINICARE OF TEXAS, INC.
                                     CLINICARE OF UTAH, INC.
                                     DAVIS HOSPITAL HOLDINGS, INC.
                                     DAVIS SURGICAL CENTER HOLDINGS, INC.
                                     FIRST CHOICE PHYSICIANS NETWORK HOLDINGS,
                                       INC.
                                     IASIS FINANCE, INC.
                                     IASIS HEALTHCARE HOLDINGS, INC.
                                     IASIS HOME INFUSION AND MEDICAL EQUIPMENT,
                                       INC.
                                     IASIS MANAGEMENT COMPANY
                                     IASIS TRANSCO, INC.
                                     JORDAN VALLEY HOSPITAL HOLDINGS, INC.
                                     MCS/AZ, INC.

<PAGE>

                                     METRO AMBULATORY SURGERY CENTER, INC.
                                     NORTH VISTA HOSPITAL, INC.
                                     PALMS OF PASADENA HOMECARE, INC.
                                     PIONEER VALLEY HEALTH PLAN, INC.
                                     PIONEER VALLEY HOSPITAL, INC.
                                     ROCKY MOUNTAIN MEDICAL CENTER, INC.
                                     SALT LAKE REGIONAL MEDICAL CENTER, INC.
                                     IASIS HOSPITAL NURSE STAFFING COMPANY
                                     SOUTHRIDGE PLAZA HOLDINGS, INC.
                                     SSJ ST. PETERSBURG HOLDINGS, INC.
                                     TAMPA BAY STAFFING SOLUTIONS, INC.

                                     By:  /s/ Frank A. Coyle
                                         -------------------------------------
                                         Name:  Frank A. Coyle
                                         Title: Secretary

                                     SEABOARD DEVELOPMENT LLC

                                     By:  /s/ Frank A. Coyle
                                         -------------------------------------
                                         Name:  Frank A. Coyle
                                         Title: Secretary

                                     ST. LUKE'S BEHAVIORAL HOSPITAL, LP
                                     MEMORIAL HOSPITAL OF TAMPA, LP
                                     MESA GENERAL HOSPITAL, LP
                                     PALMS OF PASADENA HOSPITAL, LP
                                     SOUTHWEST GENERAL HOSPITAL, LP
                                     ST. LUKE'S MEDICAL CENTER, LP
                                     TEMPE ST. LUKE'S HOSPITAL, LP
                                     TOWN & COUNTRY HOSPITAL, LP

                                     By:  IASIS HEALTHCARE HOLDINGS, INC.,
                                            as General Partner

                                     By:  /s/ Frank A. Coyle
                                         -------------------------------------
                                         Name: Frank A. Coyle
                                         Title: Secretary

                                     THE BANK OF NEW YORK TRUST
                                     COMPANY, N.A., as Trustee

                                     By:  /s/ Elizabeth T. Wagner
                                         -------------------------------------
                                         Authorized Signature
                                         Elizabeth T. Wagner
                                         Vice President

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