Document:

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                                                                   EXHIBIT 10.15

                        ADMINISTRATIVE SERVICES AGREEMENT

         This Administrative Services Agreement ("Agreement") is entered into as
of August 1, 1997 ("Effective Date") by and among NEW YORK RADIATION THERAPY
MANAGEMENT SERVICES, INCORPORATED, a New York corporation ("MANAGEMENT
SERVICES") and YONKERS RADIATION MEDICAL PRACTICE, P.C., a New York professional
corporation ("YRMP").

                                    RECITALS

         A.       YRMP is a New York professional corporation that engages in
the business of providing or arranging for the provision of health care services
(the "Practice"). YRMP has entered into and throughout the term of this
Agreement may (if MANAGEMENT SERVICES does not do so on behalf of YRMP and in
the name of YRMP as provided herein) continue to enter into arrangements with
insurers, HMOs and other third-party payors ("Payors") to provide or arrange for
the provision of health care services to persons covered by those Payors
("Enrollees").

         B.       YRMP has entered into written employment agreements with
physicians and other health care providers and health care professionals
("Employed Providers") licensed to practice in the State of New York. YRMP may
also enter into independent contractor agreements with various physicians and
other health care providers and healthcare professionals ("Contracting
Providers") to assist YRMP in providing or arranging for the provision of health
care services to Enrollees and other patients of YRMP (collectively,
"Patients").

         C.       MANAGEMENT SERVICES engages in the business of providing
certain administrative and support services concerning the day-to-day affairs of
radiation therapy centers (the "Centers"), both in their startup and established
phases, and in providing space in the Centers, equipment, furnishings, supplies,
inventory and non-medical personnel to Centers and facilities management in
connection therewith.

         D.       YRMP desires to secure certain administrative services from
MANAGEMENT SERVICES in connection with its operation of the Practice in the
Centers, and to lease from MANAGEMENT SERVICES certain space, equipment,
furnishings, supplies and inventory in connection therewith.

         E.       YRMP and MANAGEMENT SERVICES desire to enter into a written
agreement for the provision by MANAGEMENT SERVICES, on an exclusive basis, of
administrative services to YRMP with respect to the Practice, and for the
provision of space, furnishings, supplies, inventory, non-medical personnel and
management services to the Practice, so as to permit YRMP to devote its efforts
on a concentrated and continuous basis to the rendering of medical services to
its Patients.

         NOW, THEREFORE, in consideration of the mutual covenants and conditions
contained herein, the parties agree as follows:

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                           I. RESPONSIBILITIES OF YRMP

         1.1.     Sole Responsibility for All Medical and Professional Matters.
All medical and professional matters relating to the provision of radiation
therapy or oncology services to Patients at the Centers shall be the sole
responsibility of YRMP. YRMP shall use and occupy the facilities provided by
MANAGEMENT SERVICES hereunder exclusively for the practice of medicine. YRMP
expressly acknowledges that the medical practice or practices conducted at these
facilities shall be conducted solely by its Employed Providers and Contracting
Providers. YRMP shall be solely responsible for identifying appropriate YRMP
personnel, including Employed Providers and Contracting Providers, to treat the
Patients.

         1.2.     Employed Providers and Contracting Providers. YRMP shall have
complete control of and responsibility for the hiring, engagement, compensation,
supervision evaluation and termination of all Employed Providers and Contracting
Providers, including nurses, physician assistants and other licensed health care
professionals. With respect to physicians, YRMP shall only employ and contract
with licensed physicians meeting applicable credentialing guidelines established
by YRMP. YRMP shall be responsible for the payment of salaries and wages,
compensation, payroll taxes, employee benefits, and all other taxes and charges
now or hereafter applicable to Employed Providers and Contracting Providers, and
other licensed health care professional personnel. A list of all current
Employed Providers and Contracting Providers is attached as Exhibit B hereto.
Prior to making any changes with respect to any of the Employed Providers or
Contracting Providers, YRMP shall consult with MANAGEMENT SERVICES although
MANAGEMENT SERVICES shall provide input only and shall not conclude whether an
Employed Provider should be hired or terminated. YRMP shall also consult with
MANAGEMENT SERVICES for MANAGEMENT SERVICES' input with regard to the terms of
contracts entered into between YRMP and .Employed Providers and Contracting
Providers and the terms and conditions of their employment or engagement as
independent contractors, as applicable.

         1.3.     Fees, Charges and Payor Agreements. YRMP shall, after
consultation with MANAGEMENT SERVICES, determine the fees, charges, premiums, or
other amounts due in connection with its delivery of health care services to
Patients. Such fees, charges, premiums, or other amounts, regardless of whether
determined on a fee-for-service, capitated, prepaid, or other basis, shall be
reasonable and consistent with the fees, charges, premiums and other amounts due
to health care providers for similar services within the community under the
type of reimbursement program involved. MANAGEMENT SERVICES shall provide input
relating to the foregoing but shall not conclude the level of fees, charges,
premiums, or other amounts YRMP should establish.

         1.4.     Compliance with Law. YRMP shall be solely responsible for
requiring all of its Employed Providers and Contracting Providers to comply with
all laws, regulations and ethical and professional standards applicable to the
practice of medicine. Employed Providers and Contracting Providers who are
physicians shall at all times be licensed to practice medicine in the State of
New York and all other states in which a Center at which such physician provides
patients medical services is located.

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         1.5.     Centers; Hours of Operation; Staffing. YRMP shall conduct the
Practice from the current Centers set forth in Exhibit A as well as such
hospitals and other facilities as YRMP may determine from time to time in
consultation with MANAGEMENT SERVICES. Either party may recommend changes in or
additions to the Centers. Any additional or substitute Center which is agreed
upon by the mutual consent of the parties shall be deemed to be part of the
Practice for the purposes of this Agreement. The hours of operation and the
medical staffing of the Centers shall be established by the agreement of YRMP in
consultation with MANAGEMENT SERVICES from time to time hereafter.

         1.6.     Quality Assurance. YRMP shall rigorously monitor utilization
and quality of services provided by Employed Providers and Contracting
Providers, shall develop, maintain and administer quality assurance programs and
performance standards and shall take all steps necessary to remedy any and all
deficiencies in the efficiency or the quality of medical care provided.

         1.7.     Patient Referrals. The parties agree that the payments to
MANAGEMENT SERVICES for its services hereunder are not in any way contingent
upon the admission, referral or any other arrangements for the provision of any
item or service to YRMP's Patients. MANAGEMENT SERVICES shall neither make NOR
accept any referrals of Patients hereunder.

         1.8.     Professional Dues and Education Expenses. YRMP and its
Employed Providers shall be solely responsible for the cost of membership in
professional associations, and continuing professional education. YRMP shall
ensure that each of its Employed providers participates in such continuing
medical education as is necessary for such provider to remain current with
professional licensure and community standards.

         1.9.     Professional Insurance Eligibility. YRMP shall obtain and
retain professional liability insurance by assuring that either its Employed
Providers are insurable or instituting proceedings to terminate any Employed
Provider who is not insurable or loses his or her insurance eligibility.
Termination shall be effective no more than thirty (30) days from such
determination. YRMP shall require all Employed Providers to participate in an
on-going risk management program.

         1.10.    Fees for Professional Services. MANAGEMENT SERVICES shall be
solely responsible for legal, accounting and other non-medical professional
services incurred by YRMP in operating the Practice absent a violation by YRMP
of any provisions of this Agreement.

                   II. RESPONSIBILITIES OF MANAGEMENT SERVICES

         2.1.     General Responsibility. MANAGEMENT SERVICES shall have general
responsibility for providing fiscal services, administrative services, and other
strategic and tactical support services to YRMP with respect to the Practice as
provided hereunder or at the direction of YRMP, except as otherwise provided in
this Agreement. Notwithstanding MANAGEMENT SERVICES's general and specific
rights and responsibilities set forth in this Agreement, YRMP shall have full
authority and control

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with respect to all medical, professional and ethical determinations over YRMP's
Practice to the extent required by federal, state and local laws, rules and
regulations. MANAGEMENT SERVICES shall not engage in activities which constitute
the practice of medicine under applicable law. MANAGEMENT SERVICES shall neither
exercise control over nor interfere with the physician-patient relationship,
which shall be maintained strictly between the physicians of YRMP and their
Patients.

         2.2.     Responsibilities with Regard to Selected Patient- Related
Matters.

                  (a)      Patient Relations. Scheduling. Etc. MANAGEMENT
SERVICES shall assist YRMP in maintaining positive Patient relations by, among
other things, in conjunction with and at the direction of YRMP: scheduling
Patient appointments; responding to Patient grievances and complaints in matters
other than medical evaluation, diagnosis, and treatment; and establishing and
maintaining in YRMP's name and on YRMP's behalf Patient transfer arrangements to
expedite referrals where medically necessary, as determined and requested by the
attending physician.

                  (b)      Recordkeeping. Patient medical records shall be and
shall remain the property of YRMP, and the content thereof shall be solely the
responsibility of YRMP. MANAGEMENT SERVICES shall assist YRMP in maintaining
Patient medical records at the direction of YRMP and in accordance with
applicable laws concerning their confidentiality and retention, and promptly
making such records available to YRMP's Employed Providers, Contracting
Providers and other appropriate recipients.

                  (c)      Quality Assurance.

                           (i)      In General. In accordance with criteria
established by YRMP and at the direction of YRMP, MANAGEMENT SERVICES shall
assist YRMP in the development and implementation of appropriate quality
assurance programs, including development of performance and utilization
standards, sampling techniques for case review, and preparation of appropriately
documented studies. Notwithstanding the foregoing, MANAGEMENT SERVICES shall not
perform any duties that constitute the corporate practice of medicine.

                           (ii)     Periodic Independent Review. On behalf of
YRMP and at the direction of YRMP, MANAGEMENT SERVICES may periodically perform
quality assurance and utilization reviews through nurses employed by YRMP;
provided, however, that MANAGEMENT SERVICES shall not engage in activities which
constitute the practice of medicine under applicable law. Alternatively and in
consultation with YRMP, MANAGEMENT SERVICES may arrange for an independent
quality assurance and utilization review to be performed periodically by persons
who are unrelated to YRMP or MANAGEMENT SERVICES, or to any Affiliate of YRMP or
MANAGEMENT SERVICES, which has expertise in such areas and which has been
approved in advance by YRMP. Such review shall include a random sampling of
medical records (consistent with laws regarding the confidentiality of medical
records), an analysis of YRMP's quality assurance utilization review procedures,
and an analysis of the appropriateness of costs associated with operating YRMP's
medical practice at the Practice.

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         2.3.     Responsibilities with Regard to Selected Financial Matters.

                  (a)      Billing. MANAGEMENT SERVICES shall submit on a timely
basis all bills and necessary documentation required by Patients and Payers in
order to obtain payment in connection with YRMP's delivery of health care
services at the Practice or its arrangement for the delivery of such services.
In seeking such payment, MANAGEMENT SERVICES shall act as YRMP's exclusive agent
in billing and collecting professional fees, charges and other amounts owed to
YRMP. In this connection, YRMP hereby appoints MANAGEMENT SERVICES, during the
term of this Agreement, as YRMP's true and lawful attorney-in-fact, with power
of substitution, for the following purposes relating to the Practice:

                           (i)      To bill YRMP's Patients on YRMP's behalf and
in YRMP's name.

                           (ii)     To collect accounts receivable generated by
such billings on YRMP's behalf, including, where deemed appropriate by
MANAGEMENT SERVICES and approved in advance by YRMP, settling and compromising
claims, assigning such accounts receivable to a collection agency or the
bringing of legal action against a Patient or Payor on YRMP's behalf.

                           (iii)    To receive payments on behalf of YRMP from
Patients and Payors, to cause such payments to be deposited into appropriate
depository accounts (each such depository account, a "Collections Account") and
to write checks against or otherwise withdraw such payments to pay YRMP Expenses
(as hereinafter defined).

                  (b)      Accounting. MANAGEMENT SERVICES shall direct and
maintain the operation of an appropriate accounting system with respect to
YRMP's operation of the Practice which shall perform all bookkeeping and
accounting services required for the operation of the Practice, including the
maintenance, custody and supervision of business records, ledgers and reports;
the establishment, administration and implementation of accounting procedures,
controls and systems. Such accounting system shall allow MANAGEMENT SERVICES to
prepare the reports specified in Section 2.3(c).

                  (c)      Reporting. MANAGEMENT SERVICES shall present to YRMP
reports on the financial condition of YRMP on the basis set forth below in
clauses (i) and (ii) and such other reports that YRMP may reasonably request,
including daily activity reports, weekly analyses, alternative delivery system
reports, backlog reports and the like. MANAGEMENT SERVICES also shall provide
such reports as may be required by any regulatory agency having jurisdiction
over the operations of YRMP.

                  The reports initially required to be delivered to YRMP under
this Section 2.3(c) with respect to the Practice are as follows:

                           (i)      As soon as possible after the close of each
month, a balance sheet and a related statement of revenues and expenses showing
the results of YRMP's operations for the preceding month of the fiscal year and
the year to date.

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                           (ii)     As soon as possible after the close of each
fiscal year, a balance sheet and related statement of revenues and expenses
showing the results of YRMP's operations during that fiscal year.

         2.4.     Responsibilities with Respect to Facilities Management.

                  (a)      Office Management Services. MANAGEMENT SERVICES shall
provide, supervise and direct the development of appropriate and efficient
office management services with respect to YRMP's operation of the Practice.

                  (b)      Centers. MANAGEMENT SERVICES shall provide, manage
and maintain the real property comprising the Centers and reasonable
improvements during the term of this Agreement. In consultation with YRMP,
MANAGEMENT SERVICES shall oversee all management, maintenance and other
decisions pertaining to the Centers consistent with the terms of this Agreement.
MANAGEMENT SERVICES shall maintain the Centers in good condition and repair,
reasonable wear and tear excepted. MANAGEMENT SERVICES shall provide YRMP with
all utilities (including water, gas and electricity), heat, air conditioning,
telephone, janitorial services and disposal services (including the disposal of
medical wastes) required in connection with the operation of the Centers. YRMP
acknowledges that the space allocated for the provision of medical services is
adequate and not excessive for its needs at the commencement of this Agreement.
YRMP shall notify MANAGEMENT SERVICES if the space allocated to it hereunder
does not meet YRMP's needs at any point during the term of this Agreement. Upon
the request of YRMP and after consultation with MANAGEMENT SERVICES, MANAGEMENT
SERVICES will procure additional space for yrmp'S provision of medical services
hereunder.

                  (c)      Use of Assets.

                           (i)      MANAGEMENT SERVICES shall lease or purchase
and, when necessary, replace equipment and furnishings needed for the delivery
of health care services by YRMP at the Centers and for the delivery of services
provided by MANAGEMENT SERVICES pursuant to this Agreement. MANAGEMENT SERVICES
shall consult with YRMP with respect to the suppliers, prices and specifications
of such equipment and furnishings. MANAGEMENT SERVICES shall use its best
efforts to keep and maintain the equipment and furnishings used by YRMP at the
Centers in good working order and condition.

                           (ii)     All assets provided or purchased under this
Agreement by MANAGEMENT SERVICES, including any management information systems,
shall remain the property of MANAGEMENT SERVICES and YRMP shall have the right
to use such assets only during the term of this Agreement.

                           (iii)    Nothing in this Agreement shall be construed
to affect or limit in any way the professional discretion of YRMP to select and
use equipment, furnishings, inventory and supplies purchased by MANAGEMENT
SERVICES in accordance with the terms of this Agreement insofar as such
selection or use constitutes or might constitute the practice of medicine.

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                  (d)      Supplies and Inventory. MANAGEMENT SERVICES shall
provide and replenish, as necessary and as may be permitted by applicable law,
the inventory and supplies needed for the delivery of medical services by YRMP
and for the delivery of services by MANAGEMENT SERVICES pursuant to this
Agreement. MANAGEMENT SERVICES shall consult with YRMP with respect to the
suppliers, prices and specifications of such inventory and supplies.

                  (e)      No Warranties. YRMP ACKNOWLEDGES THAT MANAGEMENT
SERVICES MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED, AS TO THE
SUITABILITY OR ADEQUACY OF ANY FACILITIES, EQUIPMENT, FURNISHINGS, INVENTORY OR
SUPPLIES PROVIDED PURSUANT TO THIS AGREEMENT FOR THE CONDUCT OF A MEDICAL
PRACTICE OR FOR ANY OTHER PARTICULAR PURPOSE.

         2.6.     Other Responsibilities.

                  (a)      Public Relations. MANAGEMENT SERVICES shall propose,
directly or indirectly, public relations programs for YRMP's use to enhance its
public relations. All public relations materials and all signage shall be in the
name of YRMP. Such public relations shall comply with applicable laws and
regulations governing the use of promotional activities by the medical
profession and with applicable standards of medical ethics.

                  (b)      Insurance.

                           (i)      Property Insurance. MANAGEMENT SERVICES
shall obtain and maintain during the term of this Agreement, if available on
commercially reasonable terms, property damage insurance protecting the Practice
premises and the personal property located therein against such hazards and in
such amounts as MANAGEMENT SERVICES determines are reasonably prudent; general
liability insurance in such amounts as MANAGEMENT SERVICES determines are
reasonably prudent.

                           (ii)     General Liability Insurance. YRMP shall
obtain and maintain during the term of this Agreement general liability
insurance in such amounts as YRMP determines are reasonably prudent. YRMP shall
name MANAGEMENT SERVICES as an additional insured on such policies.

                           (iii)    Malpractice Insurance. It is understood that
YRMP and its Employed Providers shall, at YRMP's cost, at all times be covered
by malpractice insurance with coverage in usual and customary amounts for
practitioners of the same profession and specialties in New York and, if
applicable, other states. YRMP shall ensure that its written agreements with
Contracting Providers who are physicians require such Contracting Providers to
at all times be covered by malpractice insurance in amounts that are usual and
customary for practitioners of the same profession and specialty in New York
and, if applicable, other states. Such malpractice policies shall name
MANAGEMENT SERVICES as an additional insured.

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                           (iii)    Copies of Insurance Policies. MANAGEMENT
SERVICES or YRMP shall, upon request by YRMP or MANAGEMENT SERVICES, as the case
may be, promptly provide YRMP or MANAGEMENT SERVICES, as the case may be, with
copies of all policies of insurance that it procures under this Agreement. Each
such policy shall provide that it cannot be modified or terminated except after
thirty (30) days written notice to MANAGEMENT SERVICES.

                  (c)      Personnel. MANAGEMENT SERVICES shall furnish the
services of all personnel other than physicians, nurses, physician assistants or
other licensed health care professionals required for the operation of the
Practice. Except as specifically provided in this Section 2.6(c), MANAGEMENT
SERVICES has the power to recruit, hire, train, promote, assign, set the
compensation level for, and discharge all personnel. Any nonprofessional
personnel employed by MANAGEMENT SERVICES who perform patient care services
shall perform such services under the exclusive direction, supervision and
control of YRMP, while all other services of MANAGEMENT SERVICES personnel shall
be performed under the exclusive direction, supervision and control of
MANAGEMENT SERVICES. If YRMP is dissatisfied with the services of any personnel
employed by MANAGEMENT SERVICES, YRMP shall consult with MANAGEMENT SERVICES.
MANAGEMENT SERVICES shall in good faith determine whether the performance of
that employee could be brought to acceptable levels through counsel and
assistance, or whether, if requested by YRMP (provided that such employee is not
an officer or senior manager of MANAGEMENT SERVICES), such employee should be
removed from providing services for YRMP. Employee assignments shall be made
with the intention of assuring consistent and continued rendering of high
quality medical support services and to ensure prompt availability and
accessibility of individual medical support personnel to physicians in order to
develop constant, familiar and routine working relationships between individual
physicians and individual members of the medical support personnel.

                  (d)      Employed Providers. MANAGEMENT SERVICES shall
assist YRMP in the administration of any employee benefit plans established by
YRMP as directed by YRMP.

                  (e)      Managed Care Agreements. MANAGEMENT SERVICES shall
negotiate, enter into (to the extent deemed advisable by YRMP) and administer
all managed care agreements on behalf and at the direction of YRMP and shall
consult with YRMP on all professional and clinical matters relating thereto.

                           III. FINANCIAL ARRANGEMENTS

         3.1.     Service Fee. For the services to be provided hereunder by
MANAGEMENT SERVICES and subject to the provisions of this Section 3.1, YRMP
shall pay to MANAGEMENT SERVICES a Management Fee of Thirty Thousand Dollars
$30,000.00. Such fee shall be payable on a monthly basis. The parties agree that
the Management Fee represents the fair market value of the services provided by
MANAGEMENT SERVICES hereunder and that such fee shall be recalculated annually
and the new fee shall go into effect as of January 1 of each calendar year.

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         3.2.     Security Agreement; YRMP Expenses. To secure YRMP's payment
obligations hereunder, YRMP is concurrently herewith entering into a security
agreement, in form acceptable to MANAGEMENT SERVICES, to grant to MANAGEMENT
SERVICES a security interest in the accounts receivable of YRMP and all of
YRMP's rights to receive payments under managed care contracts. YRMP shall
cooperate with MANAGEMENT SERVICES and execute all reasonably necessary
documents in connection with the granting of such security interest.

         All payments on behalf of YRMP from Patients and Payors shall be
deposited into one or more Collection Accounts. To the extent YRMP receives any
such payments, YRMP shall direct such payments to MANAGEMENT SERVICES for
deposit in one or more Collection Accounts.

         3.4.     Arbitration. Any controversy or claim arising out of or
relating to this Agreement or the transactions contemplated hereby, including
any controversy or claim arising out of or relating to the parties' decision to
enter into this Agreement or the transactions contemplated hereby, shall be
settled by binding arbitration. Each party shall select an arbitrator who has at
least three (3) years experience in health care or medical practice management
or in health care or medical practice dispute resolution. The arbitration
proceedings shall be confidential and the arbitrators may issue appropriate
protective orders to safeguard each party's confidential information. Such
protective orders shall be enforceable by any court of competent jurisdiction.
Except as specifically provided in this section, the arbitration shall be
conducted in accordance with the rules of conciliation and arbitration of the
American Arbitration Association. The two arbitrators shall agree upon any issue
no later than thirty (30) days after the date the second arbitrator has been
engaged, and shall take into account the principles and objectives set forth in
paragraph (b) below. If the two arbitrators cannot agree on a determination,
then within five (5) days thereafter the two arbitrators shall select a third
arbitrator, who shall have the same qualifications required for the first two
arbitrators. No later than thirty (30) days after the date the third arbitrator
is engaged, he or she shall determine which of the two positions best satisfies
the provisions of the contract and the intent of the parties, taking into
account the principles and objectives set forth in paragraph (b) below. The
third arbitrator shall have no right to propose a middle ground between the two
or to make any modification of the proposals of either party. The third
arbitrator's determination shall be final and binding on all parties. The cost
and expense of the third arbitrator shall be shared equally between the parties.
If either party fails to engage an arbitrator as required hereunder, the
arbitrator selected by the other party shall conduct the arbitration and make
the final decision in accordance with this Section 3.4.

                  (b)      The arbitration shall be conducted at the offices of
MANAGEMENT SERVICES or such other mutually acceptable site. In conducting the
arbitration, the arbitrator(s) shall consider the following principles and
objectives of the parties in entering into this Agreement:

                           (i)      The parties contemplate that YRMP shall pay
MANAGEMENT SERVICES a flat fee for the fair market value of MANAGEMENT SERVICES'
services hereunder.

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                           (ii)     The parties that MANAGEMENT SERVICES shall
in no way provide medical services to Patients.

                           (iii)    The parties contemplate an expansion of the
Practice by acquisition or purchase of other Centers and by expansion of the
variety of specialty medical services provided and/or ancillary services
provided.

                  IV. REPRESENTATIONS AND WARRANTIES; COVENANTS

         4.1.     Representations and Warranties and Covenants of YRMP. YRMP
hereby represents and warrants to MANAGEMENT SERVICES as follows:

                  (a)      YRMP is and shall remain during the term of this
Agreement a professional corporation duly organized, validly existing and in
good standing under the laws of the State of New York, actively engaged in the
practice of medicine, and possessing full corporate power and authority to own
its properties and to conduct the business in which it engages.

                  (b)      YRMP has full corporate power and authority to
execute and deliver this Agreement and to engage in the transactions and
obligations contemplated by this Agreement. Upon its execution, this Agreement
shall constitute a valid and binding obligation of YRMP, enforceable in
accordance with its terms, except as limited by applicable bankruptcy,
insolvency, moratorium, or other similar laws affecting generally the rights of
creditors and by principles of equity. The party executing this Agreement on
behalf of YRMP is duly authorized to do so.

                  (c)      The consummation of the transactions contemplated by
this Agreement will not: result in a breach of the terms, provisions, or
conditions of or constitute a default under the Articles of Incorporation,
By-Laws or other enabling or governing instruments of YRMP or any agreement to
which YRMP is a party or by which it is bound; or, to the best knowledge of
YRMP, constitute a violation of any applicable law or regulation.

         4.2.     Covenants and Warranties of MANAGEMENT SERVICES. MANAGEMENT
SERVICES hereby represents and warrants to YRMP as follows:

                  (a)      MANAGEMENT SERVICES is and shall remain during the
term of this Agreement a corporation which is duly organized, validly existing
and in good standing under the laws of the State of New York, possessing full
corporate power and authority to own its properties and to conduct the business
in which it engages.

                  (b)      MANAGEMENT SERVICES has full corporate power and
authority to execute and deliver this Agreement and to engage in the
transactions and obligations contemplated by this Agreement. Upon its execution,
this Agreement shall constitute a valid and binding obligation of MANAGEMENT
SERVICES, enforceable in accordance with its terms, except as limited by
applicable bankruptcy, insolvency, moratorium, or other similar laws affecting
generally the rights of creditors and by

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principles of equity. The party executing this Agreement on behalf of MANAGEMENT
SERVICES is duly authorized to do so.

                  (c)      The consummation of the transactions contemplated by
this Agreement will not: result in any breach of the terms, provisions or
conditions of or constitute a default under the Certificate of Incorporation,
Bylaws or other enabling or governing instruments of MANAGEMENT SERVICES or any
agreement to which MANAGEMENT SERVICES is a party or by which it is bound; or,
to the best knowledge of MANAGEMENT SERVICES, constitute a violation of any
applicable law or regulation.

                             V. TERM AND TERMINATION

         5.1.     Term. This Agreement shall commence on the Effective Date and
shall continue in effect until August 1, 2007 (the "Initial Term"), unless
sooner terminated pursuant to this Article V. Thereafter, this Agreement shall
automatically continue in effect for additional terms of five (5) years each
(each such additional term, a "Renewal Term"), unless MANAGEMENT SERVICES
notifies YRMP in writing not less than twelve (12) months or more than fifteen
(15) months prior to the expiration of the Initial Term or any then current
Renewal Term of its intent to terminate this Agreement at the end of such term,
or unless this Agreement is terminated pursuant to Section 5.2, Section 5.3,
Section 5.4 or Section 8.11 hereof.

         5.2.     Events of Default. Each of the following shall constitute an
"Event of Default" (the party causing such default is referred to as the
"Breaching Party" and the other party is referred to as the "Non-Breaching
Party"):

                  (a)      The Breaching Party fails to make any payment
required under this Agreement.

                  (b)      The Breaching Party admits in writing its inability
to pay its debts as they mature, makes any general assignment for the benefit of
creditors, or seeks to avail itself of any law for the release of insolvent
debtors.

                  (c)      Insolvency, bankruptcy, dissolution, liquidation, or
receivership proceedings are commenced by or with the consent of the Breaching
Party, or are pending for more than sixty (60) days against the Breaching Party.

                  (d)      The Breaching Party fails to observe or otherwise
breaches any material term, condition, covenant, or warranty of this Agreement.

         5.3.     Termination. Subject to the provisions of this Article V, the
Non-Breaching Party may terminate this Agreement upon the occurrence of an
Event of Default in accordance with the following:

                  (a)      In the event of the occurrence of an Event of Default
referred to in Section 5.2(a) above, upon the expiration of thirty (30) days
after written notice, which

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notice shall specify the amount of such payment and when it was due, unless the
amount due is paid within such thirty (30) days.

                  (b)      In the event of the occurrence of any other Event of
Default, upon the expiration of ninety (90) days after written notice, which
notice shall specify the nature and extent of such Event of Default to the
Breaching Party, unless such Event of Default is remedied within such ninety
(90) days or, in the case of an Event of Default which cannot reasonably be
remedied within ninety (90) days, unless the Breaching Party has made a good
faith effort to begin to cure such Event of Default within such ninety (90)
days.

         5.4.     Termination Without Cause. Either party shall have the
absolute right to terminate this Agreement without any further liability to the
other (except as provided in Section 5.5 below), upon at least ninety (90) days
notice.

         5.5.     Duties upon Termination or Expiration of This Agreement.

                  (a)      If this Agreement is terminated upon expiration of
its term, or earlier as provided in Sections 5.3, 5.4 or 8.11:

                           (i)      Neither party shall be released or
discharged from any obligation, debt or liability which has previously accrued
or been incurred and remains to be performed upon the date of termination or
expiration;

                           (ii)     Any sums of money owing by one party to the
other shall be paid immediately;

                           (iii)    YRMP shall return to MANAGEMENT SERVICES all
originals and copies of the Proprietary Information of any of the Protected
Parties (as those terms are defined in Article VI) which are in the possession
of YRMP or any other person or entity to whom it has delivered such originals
and copies; and

                           (iv)     MANAGEMENT SERVICES shall return to YRMP all
originals and copies of all Patient Medical Records and records which will
remain the property of YRMP pursuant to Section 7.2(b) hereof.

                           (v)      Damages and any other remedies available at
law or in equity may be sought and collected by the Non-Breaching Party from the
Breaching Party in the event of a termination pursuant to Section 5.3 hereof.

                            VI. RESTRICTIVE COVENANTS

         6.1.     Covenant Regarding Proprietary Information. In the course of
the relationship created pursuant to this Agreement, YRMP will have access to
certain methods, trade secrets, processes, ideas, systems, procedures,
inventions, discoveries, concepts, software in various stages of development,
designs, drawings, specifications, models, data, documents, diagrams, flow
charts, research, economic and financial analysis, developments, procedures,
know-how, policy manuals, financial data, form contracts,

                                     - 12 -
<PAGE>

marketing ad other techniques, plans, materials, forms, copyrightable materials
and trade information regarding the operations of MANAGEMENT SERVICES and/or of
its Affiliates (collectively, the "Protected Parties"). The foregoing, together
with the existence and terms of this Agreement, are referred to in this
Agreement as "Proprietary Information". YRMP shall maintain all such Proprietary
Information in strict secrecy and shall not divulge such information to any
third parties, except as may be necessary for the discharge of its obligations
under this Agreement. YRMP shall take all necessary and proper precautions
against disclosure of any Proprietary Information to unauthorized persons by any
of its officers, directors, employees or agents. All officers, directors,
employees and agents of YRMP who will have access to all or any part of the
Proprietary Information may be required to execute an agreement, at the
reasonable request of MANAGEMENT SERVICES, valid under the law of the
jurisdiction in which such agreement is executed, and in a form acceptable to
MANAGEMENT SERVICES and its counsel, committing themselves to maintain the
Proprietary Information in strict confidence and not to disclose it to any
unauthorized person or entity. The Protected Parties not party to this Agreement
are hereby specifically made third party beneficiaries of this Section 6.1, with
the power to enforce the provisions hereof. Upon termination of this Agreement
for any reason, YRMP and each of its Employed Providers and Contracting
Providers shall cease all use of any of the Proprietary Information and, at the
request of MANAGEMENT SERVICES, shall execute such documents as may be necessary
to evidence YRMP's abandonment of any claim thereto. The parties recognize that
a breach of this Section 6.1 cannot be adequately compensated in money damages
and therefore agree that injunctive relief shall be available to the Protected
Parties as their respective interests may appear.

         The obligations of YRMP under this Section 6.1 shall not apply to
information: (i) which is a matter of public knowledge on or becomes a matter of
public knowledge after the Effective Date of this Agreement, other than as a
breach of the confidentiality terms of this Agreement or as a breach of the
confidentiality terms of any other agreement between YRMP and MANAGEMENT
SERVICES or its Affiliates; or (ii) was lawfully obtained by YRMP on a
nonconfidential basis other than in the course of performance under this
Agreement and from some entity other than MANAGEMENT SERVICES or its Affiliates
or from some person other than one employed or engaged by MANAGEMENT SERVICES or
its Affiliates, which entity or person has no obligation of confidentiality to
MANAGEMENT SERVICES or its Affiliates.

         6.2.     Covenants Not to Compete During the Term. The parties
recognize that the services to be provided by MANAGEMENT SERVICES shall be
feasible only if YRMP operates an active medical practice to which YRMP and
Employed Providers devote full time and attention. To that end:

                  (a)      Restrictive Covenants by YRMP. During the term of
this Agreement, YRMP shall not establish, operate or provide physician or other
health care services at any medical office, clinic or other health care facility
providing services substantially similar to those provided by YRMP pursuant to
this Agreement anywhere other than at the Centers and as may be approved in
writing by MANAGEMENT SERVICES. YRMP shall also not enter into any management or
administrative services

                                     - 13 -
<PAGE>

agreement or arrangement with any person or entity other than MANAGEMENT
SERVICES without MANAGEMENT SERVICES's prior written approval.

                  (b)      Restrictive Covenants by Employed Physicians. All
employment contracts between YRMP and its Employed Providers shall name
MANAGEMENT SERVICES as a third-party beneficiary to the contract. The contracts
shall include noncompetition agreements with its Employed Providers who are
physicians, the substance and form of which is set forth as Exhibit C hereto,
and which YRMP will enforce.

         6.3.     Covenant Not to Compete Following Termination. For one (1)
year following the termination of this Agreement by MANAGEMENT SERVICES pursuant
to Section 5.3 or by either party pursuant to Section 8.11, YRMP shall not enter
into any management or administrative services agreement or any similar
arrangement with any person or entity for the provision of the same or similar
services as MANAGEMENT SERVICES provides to YRMP under this Agreement.

         6.4.     Covenant Not to Solicit. During the term of this Agreement and
for one (1) year following the termination of this Agreement, YRMP shall not:

                  (a)      Directly or indirectly solicit, recruit or hire, or
induce any party to solicit, recruit or hire any person who is an employee of,
or who has entered into an independent contractor arrangement with, MANAGEMENT
SERVICES or any Affiliate of MANAGEMENT SERVICES (excluding any person who
performs patient services);

                  (b)      Directly or indirectly, whether for itself or for any
other person or entity, call upon, solicit, divert or take away, or attempt to
solicit, call upon, divert or take away any of MANAGEMENT SERVICES's customers,
business, or clients; or

                  (c)      Disrupt, damage, impair or interfere with the
business of MANAGEMENT SERVICES.

         6.5.     Enforcement. MANAGEMENT SERVICES and YRMP acknowledge and
agree that since a remedy at law for any breach or attempted breach of the
provisions of this Article VI or of Article VII shall be inadequate, either
party shall be entitled to specific performance and injunctive or other
equitable relief in case of any such breach or attempted breach, in addition to
whatever other remedies may exist by law. All parties hereto also waive any
requirement for the securing or posting of any bond in connection with the
obtaining of any such injunctive or other equitable relief. If any provision of
Article VI or Article VII relating to the restrictive period, scope of activity
restricted and/or other provisions described therein shall be declared by a
court of competent jurisdiction to exceed the maximum time period, scope of
activity restricted or geographical area such court deems reasonable and
enforceable under applicable law, the time period, scope of activity restricted
and/or area of restriction held reasonable and enforceable by the court shall
thereafter be the restrictive period, scope of activity restricted and/or the
territory applicable to the restrictive covenant provisions in this Article VI
or Article VII. The invalidity or non-enforceability of this Article VI or

                                     - 14 -
<PAGE>

Article VII in any respect shall not affect the validity or enforceability of
the remainder of this Article VI or Article VII or of any other provisions of
this Agreement.

                          VII. INFORMATION AND RECORDS

         7.1.     Ownership of Records. At all times during and after the term
of this Agreement, including any extensions or renewals hereof, all business
records, including but not limited to, business agreements, books of account,
general administrative records and all information generated under or contained
in the management information system pertaining to MANAGEMENT SERVICES's
obligations hereunder, and other business information of any kind or nature,
except for Patient medical records and YRMP's Records (as defined in Section 7.2
below), shall be and remain the sole property of MANAGEMENT SERVICES; provided
that after termination of this Agreement YRMP shall be entitled to reasonable
access to such records and information, including the right to obtain copies
thereof, for any purpose related to patient care or the defense of any claim
relating to patient care or the business of MANAGEMENT SERVICES or YRMP.

         7.2.     YRMP's Business and Financial Records. At all times during and
after the term of this Agreement, the financial, corporate and personnel records
and information relating exclusively to the business and activities of YRMP, as
distinguished from the business and activity of MANAGEMENT SERVICES, hereinafter
referred to as "YRMP's Records," shall be and remain the sole property of YRMP.

         7.3.     Access to Records. Each party shall be entitled, upon request
and with reasonable advance notice, to obtain access to all records of the other
party directly related to the performance of such party's obligations pursuant
to this Agreement; provided, however, that such right shall not allow for access
to records that must necessarily be kept confidential. Either party, at its
expense, shall have the right to make copies of any records to which it has
access pursuant to this Section.

         7.4.     Confidentiality of Records. MANAGEMENT SERVICES and YRMP shall
adopt procedures for maintaining the confidentiality of the records relating to
the operations of MANAGEMENT SERVICES and YRMP which do not constitute
Proprietary Information, which information is not otherwise available to third
parties publicly or by law, and shall comply with all applicable federal and
state statutes and regulations relating to such records. Patient medical records
and other privileged Patient information shall not be disclosed or utilized by
YRMP or MANAGEMENT SERVICES or their agents or employees except as required or
permitted by applicable laws and regulations.

                               VIII. MISCELLANEOUS

         8.1.     Independent Contractor Status of Parties. In the performance
of the work, duties and obligations under this Agreement, it is mutually
understood and agreed that each party is at all times acting and performing as
an independent contractor with respect to the other and that no relationship of
partnership joint venture or employment is created by this Agreement. Neither
party, nor any other person performing services on behalf of such party pursuant
to this Agreement, shall have any right or claim against

                                     - 15 -
<PAGE>

the other party for Social Security benefits, workers' compensation benefits,
disability benefits, unemployment insurance benefits, health benefits, vacation
pay, sick leave or any other employee benefits of any kind.

         8.2.     No Waiver. The waiver by any party to this Agreement of any
breach of any term or condition of this Agreement shall not constitute a waiver
of subsequent breaches. No waiver by any party of any provision of this
Agreement shall be deemed to constitute a waiver of any other provision.

         8.3.     Notices. If, at any time after the execution of this
Agreement, it shall become necessary or convenient for one of the parties to
serve any notice, demand or communication upon the other party, such notice,
demand, or communication shall be in writing and shall be served personally, by
nationally recognized overnight courier which provides confirmation of delivery,
or by depositing the same in the United States mail, registered or certified,
return receipt requested, postage prepaid and,

                  (a)      If intended for YRMP, then the notice shall be
addressed to:

                  (b)      If intended for MANAGEMENT SERVICES, then the notice
shall be addressed to:

or to such other address as either party may have furnished to the other party
in writing as the place for the service of notice. Any notice so mailed shall be
deemed to have been given three (3) days after the same has been deposited in
the United States mall; when delivered if the same has been given personally; or
the next business day if the same has been delivered to a nationally recognized
overnight courier service.

         8.4.     Assignment. Neither party may sell, transfer, assign, or
otherwise convey its rights or obligations under this Agreement without the
prior written consent of the other, which consent shall not be unreasonably
withheld. Notwithstanding the foregoing, MANAGEMENT SERVICES shall have the
right to (a) assign its rights and/or delegate all or any of its obligations to
any of its Affiliates; and/or (b) subcontract some portion of its obligations
hereunder to a third party which is not an Affiliate of MANAGEMENT SERVICES.

         8.5.     Successors and Assigns. Subject to the provisions of this
Agreement respecting assignment, the terms, covenants and conditions contained
herein shall be binding upon and inure to the benefit of the successors and
permitted assigns of the parties hereto.

                                     - 16 -
<PAGE>

         8.6.     Severability. Nothing contained in this Agreement shall be
construed to require the commission of an act contrary to law, and whenever
there is any conflict between any provision of this Agreement and any statute,
law, ordinance or regulation, the latter shall prevail. In such event, and in
any case in which any provision of this Agreement is determined to be in
violation of a statute, law, ordinance or regulation, the affected provision(s)
shall be limited only to the extent necessary to bring it within the
requirements of the law and, insofar as possible under the circumstances, to
carry out the purposes of this Agreement. The other provisions of this Agreement
shall remain in full force and effect, and the invalidity or unenforceability of
any provision hereof shall not affect the validity and enforceability of the
other provisions of this Agreement, nor the availability of all remedies in law
or equity to the parties with respect to such other provisions.

         8.7.     Third Parties. Except as provided in Article VII, nothing in
this Agreement shall be construed to create any duty to, any standard of care
with reference to or any liability to anyone not a party to this Agreement.

         8.8.     Headings. The headings used in this Agreement are for
convenience of reference only and shall have no force or effect in the
construction or interpretation of the provisions of this Agreement.

         8.9.     Time of the Essence. Time is of the very essence of each and
all of the agreements, covenants and conditions of this Agreement.

         8.10.    Governing Law. This Agreement shall be interpreted in
accordance with and governed by the laws of the State of New York, to the
jurisdiction of which each of the parties hereby submits.

         8.11.    Contract Modifications for Prospective Legal Events. In the
event any state or federal laws or regulations, now existing or enacted or
promulgated after the Effective Date of this Agreement, are interpreted by
judicial decision, a regulatory agency or legal counsel of both parties in such
a manner as to indicate that the structure of this Agreement may be in violation
of such laws or regulations (a "Structural Issue"), and if the basis of such
violation relates to the management fee payable to MANAGEMENT SERVICES
hereunder, MANAGEMENT SERVICES may elect either to terminate this Agreement, on
not less than ninety (90) days written notice to YRMP, or negotiate and enter
into an amendment of the management fee provisions of this Agreement in such
manner as to alleviate such violation. In the event that MANAGEMENT SERVICES
elects to negotiate an amendment of the management fee provisions of this
Agreement, the parties shall be obligated to use their best efforts to negotiate
such amendment based upon the principles set forth in Section 3.5(b)(v) hereof.
In the event that the parties are unable to agree upon such amendment within
thirty (30) days after the determination that such amendment is necessary,
either party may elect either to terminate this Agreement, on not less than
ninety (90) days written notice to the other, or submit the amendment of the
provisions of this Agreement relating to the management fee to arbitration in
accordance with the provisions of Section 3.5 hereof.

                                     - 17 -
<PAGE>

         In the event the basis of such violation relates to a matter other than
the management fee, YRMP and MANAGEMENT SERVICES shall amend this Agreement, to
the maximum extent possible, to preserve the underlying economic and financial
arrangements between YRMP and MANAGEMENT SERVICES.

         The parties agree that an amendment to accomplish the purposes set
forth in this Section 8.11 may require reorganization of YRMP or MANAGEMENT
SERVICES, or both, and may require either or both parties to obtain appropriate
regulatory licenses and approvals. If (a) such reorganization or obtaining such
regulatory licenses and approvals is not reasonably possible, either party shall
have the right to terminate this Agreement on not less than ninety (90) days
written notice to the other party; or (b) such reorganization or obtaining such
regulatory licenses and approvals would require MANAGEMENT SERVICES or YRMP to
incur a material economic detriment or would result in a material economic
detriment for MANAGEMENT SERVICES or YRMP, MANAGEMENT SERVICES or YRMP, as the
case may be, shall have the right to terminate this Agreement on not less than
ninety (90) days written notice to YRMP or MANAGEMENT SERVICES, as the case may
be.

         MANAGEMENT SERVICES shall have no claim against YRMP, and YRMP shall
have no claim against MANAGEMENT SERVICES, pursuant to the provisions of Section
4.1(c) hereof or Section 4.2(c) hereof, respectively, which is based upon or
arises out of a Structural Issue.

         8.12.    Language Construction. The language in all parts of this
Agreement shall be construed, in all cases, according to its fair meaning, and
not for or against either party hereto. The parties acknowledge that each party
and its counsel have reviewed and revised this Agreement and that the normal
rule of construction to the effect that any ambiguities are to be resolved
against the drafting party shall not be employed in the interpretation of this
Agreement.

         8.13.    Indemnification. YRMP shall indemnify, hold harmless and
defend MANAGEMENT SERVICES, its officers, directors, shareholders, employees,
agents and independent contractors (the "MANAGEMENT SERVICES Group") from and
against any and all liabilities, losses, damages, claims, causes of action, and
expenses (including reasonable attorneys' fees and disbursements (a "MANAGEMENT
SERVICES Loss")), caused or asserted to have been caused, directly or
indirectly, by or as a result of the performance of medical services or any
other acts or omissions by MANAGEMENT SERVICES and/or its partners, agents,
employees and/or subcontractors (other than MANAGEMENT SERVICES) during the term
hereof except with respect to any MANAGEMENT SERVICES Loss which is the result
of any gross negligence or willful misconduct by a member of the MANAGEMENT
SERVICES Group. MANAGEMENT SERVICES shall indemnify, hold harmless and defend
YRMP, its officers, directors, partners employees, agents and independent
contractors (the "YRMP Group") from and against any and all liabilities, losses,
damages, claims, causes of action, and expenses (including reasonable judgment
attorneys' fees and disbursements) (a "YRMP Loss"), caused or asserted to have
been caused, directly or indirectly, by or as a result of the performance of any
acts of omissions by MANAGEMENT SERVICES and/or its shareholders, agents,
employees and/or subcontractors during the term hereof

                                     - 18 -
<PAGE>

except with respect to any YRMP Loss which is the result of any gross negligence
or willful misconduct by a member of the YRMP Group.

         8.14.    Entire Agreement. This Agreement constitutes the entire
agreement between the parties with respect to the subject matter hereof and
supersedes all prior and contemporaneous agreements, understandings,
negotiations and discussions, whether written or oral, between or among parties
regarding the subject matter of this Agreement.

         8.15.    Incorporation by Reference. All exhibits and other attachments
to this Agreement are incorporated by reference into this Agreement by such
reference.

         8.16.    Amendments Only in Writing. This Agreement may not be amended
or modified in any respect whatsoever, except by an instrument in writing signed
by the parties hereto.

         8.17.    Counterparts. This Agreement may be executed in one or more
counterparts, each of which shall be considered an original and all of which
shall constitute one and the same agreement. This Agreement shall not become
effective until it has been executed by all of the parties hereto.

         8.18.    Commercial Impracticability. No party to this Agreement shall
be liable for any failure to perform its obligations hereunder where such
failure results from any cause beyond that party's reasonable control,
including, for example, an act of God, labor disturbance such as a strike or
walkout, war, riot, fire, storm, accident, government regulation or
interference, or mechanical, electronic or communications failure.

         8.19.    Election of Remedies. The respective rights of the parties to
this Agreement shall be cumulative. Each party shall have all other rights and
remedies consistent with this Agreement as law and equity may provide. No
exercise by any party of one right or remedy shall be deemed to be an exclusive
election of rights or remedies.

         8.20.    Survival. The provisions of Articles III, IV, V, VI, VII and
VIII shall survive any termination of this Agreement.

         8.21.    Third Party Beneficiaries. Except with respect to Affiliates
of MANAGEMENT SERVICES, nothing in this Agreement shall be construed to create
any duty to, any standard of care with reference to, or any liability to any
Person not a party to this Agreement. The Affiliates of MANAGEMENT SERVICES are
intended third party beneficiaries of this Agreement.

         8.22.    Affiliate. An "Affiliate" of an entity means (i) any person or
entity directly or indirectly controlled by such entity; (ii) any person or
entity directly or indirectly controlling such entity; (iii) any subsidiary of
such entity if the entity has a fifty percent (50%) or greater ownership
interest in the subsidiary; or (iv) such entity's parent entity if the parent
has a fifty percent (50%) or greater ownership interest in the entity. For
purposes of this Article III, YRMP is not an Affiliate of MANAGEMENT SERVICES.

                                     - 19 -
<PAGE>

         IN WITNESS WHEREOF, MANAGEMENT SERVICES and YRMP have caused this
Agreement to be executed by their duly authorized respective officers as of the
Effective Date.

                                 NEW YORK RADIATION THERAPY
                                 MANAGEMENT SERVICES, INCORPORATED

                                 By: /s/ Daniel E. Dosoretz
                                     -------------------------------------
                                     Daniel E. Dosoretz, M.D.
                                     President

                                 YONKERS RADIATION MEDICAL PRACTICE,
                                 P.C.

                                 By: /s/ Daniel E. Dosoretz
                                     -------------------------------------
                                     Daniel E. Dosoretz, M.D.
                                     President

                                     - 20 -
<PAGE>

                  ADDENDUM TO ADMINISTRATIVE SERVICES AGREEMENT
                                    "Yonkers"

         This Addendum (the "Addendum") is entered into as of January 1, 2000,
by and among NEW YORK RADIATION THERAPY MANAGEMENT SERVICES, INCORPORATED, a New
York corporation ("MANAGEMENT SERVICES") and YONKERS RADIATION MEDICAL PRACTICE,
P.C., a New York professional corporation (the "PC"). This Addendum amends
Section 3.1 of the Administrative Services Agreement, dated January 1, 1999,
between the parties (the "Agreement").

         From and after the date hereof, Section 3.1 shall read as follows:

                        3.1. Service Fee. For the services to be provided
                hereunder by MANAGEMENT SERVICES, the PC shall pay to MANAGEMENT
                SERVICES a monthly Service Fee of $81,250. The parties agree
                that the Service Fee represents the fair market value of the
                services provided by MANAGEMENT SERVICES hereunder and that the
                parties shall meet annually to reevaluate the value of services
                provided by MANAGEMENT SERVICES and shall establish the fair
                market value thereof for purposes of this Section 3.1.

Accepted:                                    NEW YORK RADIATION THERAPY
                                             MANAGEMENT SERVICES, INCORPORATED

                                             By: /s/ David Koeninger
                                                 ------------------------------
                                                 Chief Financial Officer

Accepted:                                    YONKERS RADIATION MEDICAL PRACTICE,
                                             P.C.

                                             By: /s/ Daniel E. Dosoretz
                                                 ------------------------------
                                                 Daniel E. Dosoretz, M.D.
                                                 President

<PAGE>

                 ADDENDUM TO ADMINISTRATIVE SERVICES AGREEMENT
                                   "Yonkers"

         This Addendum (the "Addendum") is entered into as of January 1, 2001,
by and among NEW YORK RADIATION THERAPY MANAGEMENT SERVICES, INC., a New York
corporation ("MANAGEMENT SERVICES") and YONKERS RADIATION MEDICAL PRACTICE,
P.C., a New York professional corporation (the "PC"). This Addendum amends
Section 3.1 of the Administrative Services Agreement dated January 1, 1999,
between the parties (the "Agreement") and replaces the Addendum of that same
Section dated January 1, 2000.

         From and after the date hereof, Section 3.1 shall read as follows:

                        3.1. Service Fee. For the services to be provided
                hereunder by MANAGEMENT SERVICES, the PC shall pay to MANAGEMENT
                SERVICES a monthly Service Fee of $79,166.67. The parties agree
                that the Service Fee represents the fair market value of the
                services provided by MANAGEMENT SERVICES hereunder and that the
                parties shall meet annually to reevaluate the value of services
                provided by MANAGEMENT SERVICES and shall establish the fair
                market value thereof for purposes of this Section 3.1.

Accepted:                                     NEW YORK RADIATION THERAPY
                                              MANAGEMENT SERVICES, INC.

                                              By: /s/ David Koeninger
                                                  ------------------------------
                                                  Chief Financial Officer

Accepted:                                      YONKERS RADIATION MEDICAL
                                               PRACTICE, P.C.

                                              By: /s/ Daniel E. Dosoretz
                                                  ------------------------------
                                                  Daniel E. Dosoretz, M.D.
                                                  President

<PAGE>

                  ADDENDUM TO ADMINISTRATIVE SERVICES AGREEMENT
                                    "Yonkers"

         This Addendum (the "Addendum") is entered into as of January 1, 2002,
by and among NEW YORK RADIATION THERAPY MANAGEMENT SERVICES, INC., a New York
corporation ("MANAGEMENT SERVICES") and YONKERS RADIATION MEDICAL PRACTICE,
P.C., a New York professional corporation (the "PC"). This Addendum amends
Section 3.1 of the Administrative Services Agreement dated January 1, 1999,
between the parties (the "Agreement") and replaces the Addendum of that same
Section dated January 1, 2001.

         From and after the date hereof, Section 3.1 shall read as follows:

                        3.1. Service Fee. For the services to be provided
                hereunder by MANAGEMENT SERVICES, the PC shall pay to MANAGEMENT
                SERVICES a monthly Service Fee of $86,666.67. The parties agree
                that the Service Fee represents the fair market value of the
                services provided by MANAGEMENT SERVICES hereunder and that the
                parties shall meet annually to reevaluate the value of services
                provided by MANAGEMENT SERVICES and shall establish the fair
                market value thereof for purposes of this Section 3.1.

Accepted:                                     NEW YORK RADIATION THERAPY
                                              MANAGEMENT SERVICES, INC.

                                              By: /s/ David Koeninger
                                                  ------------------------------
                                                  David Koeninger
                                                  Chief Financial Officer

Accepted:                                     YONKERS RADIATION MEDICAL
                                              PRACTICE, P.C.

                                              By: /s/ Daniel E. Dosoretz
                                                  ------------------------------
                                                  Daniel E. Dosoretz, M.D.
                                                  President

<PAGE>

                 ADDENDUM TO ADMINISTRATIVE SERVICES AGREEMENT
                                   "Yonkers"

         This Addendum (the "Addendum") is entered into as of January 1, 2003,
by and among NEW YORK RADIATION THERAPY MANAGEMENT SERVICES, INC. a New York
corporation ("MANAGEMENT SERVICES") and YONKERS RADIATION MEDICAL PRACTICE, P.C.
a New York professional corporation (the "PC"). This Addendum amends Section 3.1
of the Administrative Services Agreement dated January 1, 1999, between the
parties (the "Agreement") and replaces the Addendum of that same Section dated
January 1, 2002.

         From and after the date hereof, Section 3.1 shall read as follows:

                        3.1. Service Fee. For the services to be provided
                hereunder by MANAGEMENT SERVICES, the PC shall pay to MANAGEMENT
                SERVICES a monthly Service Fee of $635,833.33. The parties agree
                that the Service Fee represents the fair market value of the
                services provided by MANAGEMENT SERVICES hereunder and that the
                parties shall meet annually to reevaluate the value of services
                provided by MANAGEMENT SERVICES and shall establish the fair
                market value thereof for purposes of this Section 3.1.

Accepted:                                     NEW YORK RADIATION THERAPY
                                              MANAGEMENT SERVICES, INC.

                                              By: /s/ David Koeninger
                                                  ------------------------------
                                                  David Koeninger
                                                  Chief Financial Officer

Accepted:                                     YONKERS RADIATION MEDICAL
                                              PRACTICE, P.C.

                                              By: /s/ Daniel E. Dosoretz
                                                  ------------------------------
                                                  Daniel E. Dosoretz, M.D.
                                                  President

<PAGE>

                  ADDENDUM TO ADMINISTRATIVE SERVICES AGREEMENT

         This Addendum (the "Addendum") is entered into as of January 1, 2004,
by and among NEW YORK RADIATION THERAPY MANAGEMENT SERVICES, INC., a New York
corporation ("MANAGEMENT SERVICES") and YONKERS RADIATION MEDICAL PRACTICE,
P.C., a New York professional corporation (the "PC"). This Addendum amends
Section 3.1 of the Administrative Services Agreement dated January 1, 1999
between the parties (the "Agreement") and replaces the Addendum of that same
Section dated January 1, 2003.

         From and after the date hereof, Section 3.1 shall read as follows:

                        3.1. Service Fee. For the services to be provided
                hereunder by MANAGEMENT SERVICES, the PC shall pay to MANAGEMENT
                SERVICES a monthly Service Fee of $562,500.00. The parties agree
                that the Service Fee represents the fair market value of the
                services provided by MANAGEMENT SERVICES hereunder and that the
                parties shall meet annually to reevaluate the value of services
                provided by MANAGEMENT SERVICES and shall establish the fair
                market value thereof for purposes of this Section 3.1.

                Accepted:                     NEW YORK RADIATION THERAPY
                                              MANAGEMENT SERVICES, INC.

                                              By: /s/ David Koeninger
                                                  ------------------------------
                                                  David Koeninger
                                                  Vice President and CFO

                Accepted:                     YONKERS RADIATION MEDICAL
                                              PRACTICE, P.C.

                                              By: /s/ Daniel E. Dosoretz
                                                  ------------------------------
                                                  Daniel E. Dosoretz, M.D.
                                                  President<PAGE>

                                                                   EXHIBIT 10.16

                        ADMINISTRATIVE SERVICES AGREEMENT
                                "North Carolina"

         This Administrative Services Agreement ("Agreement") is entered into as
of January 1, 2002 ("Effective Date") by and among NORTH CAROLINA RADIATION
THERAPY MANAGEMENT SERVICES, INC., a North Carolina corporation ("MANAGEMENT
SERVICES") and RADIATION THERAPY ASSOCIATES OF WESTERN NORTH CAROLINA, P.A., a
North Carolina professional corporation (the "PC").

                                    RECITALS

         A.       The PC is a North Carolina professional corporation that
engages in the business of providing or arranging for the provision of health
care services (the "Practice"). The PC has entered into and throughout the term
of this Agreement may (if MANAGEMENT SERVICES does not do so itself as provided
herein) continue to enter into arrangements with insurers, HMOs and other
third-party payors ("Payors") to provide or arrange for the provision of health
care services to persons covered by those Payors ("Enrollees").

         B.       The PC has entered into written employment agreements with
physicians and other health care providers and health care professionals
("Employed Providers") licensed to practice in the State of North Carolina. The
PC may also enter into independent contractor agreements with various physicians
and other health care providers and health care professionals ("Contracting
Providers") to assist the PC in providing or arranging for the provision of
health care services to Enrollees and other patients of the PC (collectively,
"Patients").

         C.       MANAGEMENT SERVICES engages in the business of providing
certain administrative and support services concerning the day-to-day affairs of
radiation therapy office (the "Offices"), both in their startup and established
phases, and in providing space in the Offices, equipment, furnishings, supplies,
inventory, personnel and working capital to Offices and facilities management in
connection therewith.

         D.       The PC desires to secure certain administrative services from
MANAGEMENT SERVICES in connection with its operation of the Practice in the
Offices, and to lease from MANAGEMENT SERVICES certain space, equipment,
furnishings, supplies and inventory in connection therewith.

         E.       The PC and MANAGEMENT SERVICES desire to enter into a written
agreement for the provision by MANAGEMENT SERVICES, on an exclusive basis, of
administrative services to the PC with respect to the Practice, and for the
provision of space, furnishings, supplies, inventory, non-medical personnel and
management services to the Practice, so as to permit the PC to devote its
efforts on a concentrated and continuous basis to the rendering of medical
services to its Patients.

         NOW, THEREFORE, in consideration of the mutual covenants and conditions
contained herein, the parties agree as follows:

<PAGE>

                          I. RESPONSIBILITIES OF THE PC

         1.1.     Sole Responsibility for All Medical and Professional Matters.
All medical and professional matters relating to the provision of radiation
therapy or oncology services at the Offices shall be the sole responsibility of
the PC. The PC shall use and occupy the facilities provided by MANAGEMENT
SERVICES hereunder exclusively for the practice of medicine. The PC expressly
acknowledges that the medical practice or practices conducted at these
facilities shall be conducted solely by Employed Providers and Contracting
Providers.

         1.2.     Employed Providers and Contracting Providers. The PC shall
have complete control of and responsibility for the hiring, engagement,
compensation, supervision evaluation, and termination of all Employed Providers
and Contracting Providers, including nurses, physician assistants and other
licensed healthcare professionals. With respect to physicians, the PC shall only
employ and contract with licensed physicians meeting applicable credentialing
guidelines established by the PC. The PC shall be responsible for the payment of
salaries and wages, compensation, payroll taxes, employee benefits, and all
other taxes and charges now or hereafter applicable to Employed Providers and
Contracting Providers. Prior to making any changes with respect to any of the
Employed Providers or Contracting Providers, the PC shall consult with
MANAGEMENT SERVICES, although MANAGEMENT SERVICES shall provide input only and
shall not conclude whether an Employed Provider should be hired or terminated.
The PC shall also consult with MANAGEMENT SERVICES with regard to the terms of
contracts entered into between the PC and Employed Providers and Contracting
Providers and the terms and conditions of their employment or engagement as
independent contractors, as applicable.

         1.3.     Fees, Charges and Payor Agreements. The PC shall, after
consultation with MANAGEMENT SERVICES, determine the fees, charges, premiums, or
other amounts due in connection with its delivery of health care services to
Patients. Such fees, charges, premiums, or other amounts, regardless of whether
determined on a fee-for-service, capitated, prepaid, or other basis, shall be
reasonable and consistent with the fees, charges, premiums and other amounts due
to health care providers for similar services within the community under the
type of reimbursement program involved. MANAGEMENT SERVICES shall provide input
relating to the foregoing but shall not conclude the level of fees, charges,
premiums, or other amounts the PC should establish.

         1.4.     Compliance with Law. The PC shall require all of its Employed
Providers and Contracting Providers to comply with all laws, regulations, and
ethical and professional standards applicable to the practice of medicine.
Employed Providers and Contracting Providers who are physicians shall at all
times be licensed to practice medicine in the State of North Carolina and all
other states in which an Office at which such physician provides patients
medical services is located.

                                     - 2 -
<PAGE>

         1.5.     Offices; Hours of Operation; Staffing. The PC shall conduct
the Practice from the current Office located in North Carolina at 21 East Forest
Drive, Asheville, North Carolina, as well as such hospitals and other facilities
as may be agreed upon by MANAGEMENT SERVICES and the PC from time to time. Any
additional or substitute Office shall be deemed to be part of the Practice for
the purposes of this Agreement. The hours of operation and the medical staffing
of the Offices shall be established by the agreement of the PC and MANAGEMENT
SERVICES from time to time hereafter.

         1.6.     Quality Assurance. The PC shall rigorously monitor utilization
and quality of services provided by Employed Providers and Contracting
Providers, shall develop, maintain and administer quality assurance programs and
performance standards and shall take all steps necessary to remedy any and all
deficiencies in the efficiency or the quality of medical care provided.

         1.7.     Patient Referrals. The parties agree that the benefits to the
PC hereunder do not require, are not payment for, and are not in any way
contingent upon the admission, referral or any other arrangements for the
provision of any item or service offered by MANAGEMENT SERVICES or any
Affiliate, as defined in Section 8.21 of this Agreement, of MANAGEMENT SERVICES
to any of the PC's Patients in any facility or laboratory controlled, managed or
operated by MANAGEMENT SERVICES or any Affiliate of MANAGEMENT SERVICES.

         1.8.     Professional Dues and Education Expenses. The PC and its
Employed Providers and Contracting Providers shall be solely responsible for the
cost of membership in professional associations, and continuing professional
education. The PC shall ensure that each of its Employed Providers and
Contracting Providers participates in such continuing medical education as is
necessary for such provider to remain current with professional licensure and
community standards.

         1.9.     Professional Insurance Eligibility. The PC shall cooperate
with MANAGEMENT SERVICES in the obtaining and retaining of professional
liability insurance by assuring that either its Employed Providers and
Contracting Providers are insurable or instituting proceedings to terminate any
Employed Provider of Contracting Provider who is not insurable or loses his or
her insurance eligibility. Termination shall be effective no more than thirty
(30) days from such determination. The PC shall require all Employed Providers
and Contracting Providers to participate in an on-going risk management program.

         1.10.    Fees for Professional Services. MANAGEMENT SERVICES shall be
solely responsible for legal, accounting and other professional services
incurred by the PC in operating the Practice absent a violation by the PC of any
provisions of this Agreement.

                                     - 3 -
<PAGE>

                   II. RESPONSIBILITIES OF MANAGEMENT SERVICES

         2.1.     General Responsibility. MANAGEMENT SERVICES shall have general
responsibility for providing fiscal services, administrative services, and other
strategic and tactical support services to the PC with respect to the Practice,
except as otherwise provided in this Agreement. MANAGEMENT SERVICES shall
perform all required functions in accordance with sound management techniques.
Notwithstanding MANAGEMENT SERVICES's general and specific rights and
responsibilities set forth in this Agreement, the PC shall have full authority
and control with respect to all medical, professional and ethical determinations
over the PC's Practice to the extent required by federal, state and local laws,
rules and regulations. MANAGEMENT SERVICES shall not engage in activities which
constitute the practice of medicine under applicable laws. MANAGEMENT SERVICES
shall neither exercise control over nor interfere with the physician-patient
relationship, which shall be maintained strictly between the physicians employed
by or contracting with the PC and the PC's Patients.

         2.2.     Responsibilities with Regard to Selected Patient- Related
Matters.

                  (a)      Patient Relations, Scheduling, Etc. MANAGEMENT
SERVICES shall assist the PC in maintaining positive Patient relations by, among
other things, in conjunction with and at the direction of the PC: scheduling
Patient appointments; responding to Patient grievances and complaints in matters
other than medical evaluation, diagnosis, and treatment; and establishing and
maintaining in the PC's name and on its behalf Patient transfer arrangements to
expedite referrals where medically necessary, as determined and requested by the
attending physician.

                  (b)      Recordkeeping. MANAGEMENT SERVICES shall assist the
PC in maintaining Patient medical records in accordance with applicable laws
concerning their confidentiality and retention, and promptly making such records
available to the PC's Employed Providers, Contracting Providers and other
appropriate recipients. Notwithstanding the foregoing sentence, Patient medical
records shall be and shall remain the property of the PC, and the content
thereof shall be solely the responsibility of the PC.

                  (c)      Quality Assurance.

                           (i)      In General. MANAGEMENT SERVICES shall assist
the PC, in accordance with criteria established by the PC, in the development
and implementation of appropriate quality assurance programs, including
development of performance and utilization standards, sampling techniques for
case review, and preparation of appropriately documented studies.
Notwithstanding the foregoing, MANAGEMENT SERVICES shall not perform any duties
that constitute the corporate practice of medicine in North Carolina and all
other states in which an Office at which the PC provides patient medical
services is located.

                           (ii)     Periodic Independent Review. On behalf of
the PC,

                                     - 4 -
<PAGE>

MANAGEMENT SERVICES may periodically perform quality assurance and utilization
reviews through nurses employed by it; provided, however, that MANAGEMENT
SERVICES shall not engage in activities which constitute the practice of
medicine under applicable law. Alternatively, MANAGEMENT SERVICES may
periodically arrange for an independent quality assurance and utilization review
to be performed by persons who are unrelated to the PC or MANAGEMENT SERVICES,
or to any Affiliate of the PC or MANAGEMENT SERVICES, which has expertise in
such areas, and which has been approved in advance by the PC. Such review shall
include a random sampling of medical records (consistent with laws regarding the
confidentiality of medical records), an analysis of the PC's quality assurance
utilization review procedures, and an analysis of the appropriateness of costs
associated with operating the PC's medical practice at the Practice.

         2.3.     Responsibilities with Regard to Selected Financial Matters.

                  (a)      Billing. MANAGEMENT SERVICES shall submit on a timely
basis all bills and necessary documentation required by Patients and Payors in
order to obtain payment in connection with the PC's delivery of health care
services at the Practice or its arrangement for the delivery of such services.
In seeking such payment, MANAGEMENT SERVICES shall act as the PC's exclusive
agent in billing and collecting professional fees, charges and other amounts
owed to the PC. In this connection, the PC hereby appoints MANAGEMENT SERVICES,
during the term of this Agreement, as the PC's true and lawful attorney-in-fact,
with power of substitution, for the following purposes relating to the Practice:

                           (i)      To bill the PC's Patients on the PC's
behalf.

                           (ii)     To collect accounts receivable generated by
such billings on the PC's behalf, including, where deemed appropriate by
MANAGEMENT SERVICES and approved in advance by the PC, settling and compromising
claims, assigning such accounts receivable to a collection agency or the
bringing of legal action against a Patient or Payor on the PC's behalf.

                           (iii)    To receive payments on behalf of the PC from
Patients and Payors, to cause such payments to be deposited into appropriate
depository accounts (each such depository account, a "Collections Account") and
to write checks against or otherwise withdraw such payments to pay the PC
Expenses (as hereinafter defined).

                  (b)      Accounting. MANAGEMENT SERVICES shall direct and
maintain the operation of an appropriate accounting system with respect to the
PC's operation of the Practice which shall perform all bookkeeping and
accounting services required for the operation of the Practice, including the
maintenance, custody and supervision of business records, ledgers and reports;
the establishment, administration and implementation of accounting procedures,
controls and systems. Such accounting system shall allow MANAGEMENT SERVICES to
prepare the reports specified in Section 2.3(c).

                                     - 5 -
<PAGE>

                  (c)      Reporting. MANAGEMENT SERVICES shall present to the
PC reports on the financial condition of the PC on the basis set forth below in
clauses (i) and (ii) and such other reports that the PC may reasonably request,
including daily activity reports, weekly analyses, alternative delivery system
reports, backlog reports and the like. MANAGEMENT SERVICES also shall provide
such reports as may be required by any regulatory agency having jurisdiction
over the operations of the PC.

                  The reports initially required to be delivered to the PC under
this Section 2.3(c) with respect to the Practice are as follows:

                           (i)      As soon as possible after the close of each
month, a balance sheet and a related statement of revenues and expenses showing
the results of the PC's operations for the preceding month of the fiscal year
and the year to date.

                           (ii)     As soon as possible after the close of each
fiscal year, a balance sheet and related statement of revenues and expenses
showing the results of the PC's operations during that fiscal year.

         2.4.     Responsibilities with Respect to Facilities Management.

                  (a)      Office Management Services. MANAGEMENT SERVICES shall
provide, supervise and direct the development of appropriate and efficient
office management services with respect to the PC's operation of the Practice.

                  (b)      Offices. MANAGEMENT SERVICES shall provide, manage
and maintain the real property comprising the Offices and reasonable
improvements during the term of this Agreement. In consultation with the PC,
MANAGEMENT SERVICES shall oversee all management, maintenance and other
decisions pertaining to the Offices consistent with the terms of this Agreement.
MANAGEMENT SERVICES shall maintain the Offices in good condition and repair,
reasonable wear and tear excepted. MANAGEMENT SERVICES shall provide such
additional and/or replacement facilities as the PC and MANAGEMENT SERVICES
agree, from time to time. MANAGEMENT SERVICES shall provide the PC with all
utilities (including water, gas and electricity), heat, air conditioning,
telephone, janitorial services and disposal services (including the disposal of
medical wastes) required in connection with the operation of the Offices.

                  (c)      Use of Assets.

                           (i)      MANAGEMENT SERVICES shall lease or purchase
and, when necessary, replace equipment and furnishings needed for the delivery
of health care services by the PC at the Offices and for the delivery of
services provided by MANAGEMENT SERVICES pursuant to this Agreement. MANAGEMENT
SERVICES shall consult with the PC with respect to the suppliers, prices and
specifications of such equipment and furnishings. MANAGEMENT SERVICES shall use
its best efforts to keep and maintain the equipment and

                                     - 6 -
<PAGE>

furnishings used by the PC at the Offices in good working order and condition.

                           (ii)     All assets provided or purchased under this
Agreement by MANAGEMENT SERVICES, including any management information systems,
shall remain the property of MANAGEMENT SERVICES and the PC shall have the right
to use such assets only during the term of this Agreement.

                           (iii)    Nothing in this Agreement shall be construed
to affect or limit in any way the professional discretion of the PC to select
and use equipment, furnishings, inventory and supplies purchased by MANAGEMENT
SERVICES in accordance with the terms of this Agreement insofar as such
selection or use constitutes or might constitute the practice of medicine.

                  (d)      Supplies and Inventory. MANAGEMENT SERVICES shall
provide and replenish, as necessary and as may be permitted by applicable law,
the inventory and supplies needed for the delivery of medical services by the
PC, and for the delivery of services by MANAGEMENT SERVICES pursuant to this
Agreement. MANAGEMENT SERVICES shall consult with the PC with respect to the
suppliers, prices and specifications of such inventory and supplies.

                  (e)      No Warranties. THE PC ACKNOWLEDGES THAT MANAGEMENT
SERVICES MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED, AS TO THE
SUITABILITY OR ADEQUACY OF ANY FACILITIES, EQUIPMENT, FURNISHINGS, INVENTORY OR
SUPPLIES PROVIDED PURSUANT TO THIS AGREEMENT FOR THE CONDUCT OF A MEDICAL
PRACTICE OR FOR ANY OTHER PARTICULAR PURPOSE.

         2.5.     Other Responsibilities.

                  (a)      Public Relations. MANAGEMENT SERVICES shall provide
services reasonably necessary for enhancing public relations for the PC's health
care services and shall submit any public relations programs for prior review
and revision, if necessary, and approval by the PC. Such public relations shall
comply with applicable laws and regulations governing the use of promotional
activities by the medical profession and with applicable standards of medical
ethics.

                  (b)      Insurance.

                           (i)      Property and Liability Insurance. MANAGEMENT
SERVICES shall obtain and maintain during the term of this Agreement, if
available on commercially reasonable terms, (a) property damage insurance
protecting the Practice premises and the personal property located therein
against such hazards and in such amounts as MANAGEMENT SERVICES determines are
reasonably prudent; and (b) general liability insurance in such amounts as
MANAGEMENT SERVICES determines are reasonably prudent.

                                     - 7 -
<PAGE>

                           (ii)     General Liability Insurance. The PC shall
obtain and maintain during the term of this Agreement general liability
insurance in such amounts as the PC determines are reasonably prudent. The PC
shall name MANAGEMENT SERVICES as an additional insured on such policies.

                           (iii)    Malpractice Insurance. It is understood that
the PC and its Employed Providers shall, at the PC's cost, at all times be
covered by malpractice insurance with coverage in usual and customary amounts
for practitioners of the same profession and specialties in North Carolina and,
if applicable, other states. The PC shall ensure that its written agreements
with Contracting Providers who are physicians require such Contracting Providers
to at all times be covered by malpractice insurance in amounts that are usual
and customary for practitioners of the same profession and specialty in North
Carolina and, if applicable, other states. Such malpractice policies shall name
MANAGEMENT SERVICES as an additional insured.

                           (iv)     Copies of Insurance Policies. MANAGEMENT
SERVICES or the PC shall, upon request by the PC or MANAGEMENT SERVICES, as the
case may be, promptly provide the PC or MANAGEMENT SERVICES, as the case may be,
with copies of all policies of insurance that it procures under this Agreement.
Each such policy shall provide that it cannot be modified or terminated except
after thirty (30) days written notice to MANAGEMENT SERVICES.

                  (c)      Personnel. MANAGEMENT SERVICES shall furnish the
services of all personnel other than physicians, nurses, physician assistants or
other licensed healthcare professionals required for the operation of the
Practice. Except as specifically provided in this Section 2.5(c), MANAGEMENT
SERVICES has the power to recruit, hire, train, promote, assign, set the
compensation level for, and discharge all personnel other than physicians,
nurses, physician assistants or other licensed healthcare professionals. Any
personnel employed by MANAGEMENT SERVICES who perform patient care services
shall perform such services under the exclusive direction, supervision and
control of the PC, while all other services of MANAGEMENT SERVICES personnel
shall be performed under the exclusive direction, supervision and control of
MANAGEMENT SERVICES. If the PC is dissatisfied with the services of any
personnel employed by MANAGEMENT SERVICES, the PC shall consult with MANAGEMENT
SERVICES. MANAGEMENT SERVICES shall in good faith determine whether the
performance of that employee could be brought to acceptable levels through
counsel and assistance, or whether, if requested by the PC (provided that such
employee is not an officer or senior manager of MANAGEMENT SERVICES), such
employee should be removed from providing services for the PC. Employee
assignments shall be made with the intention of assuring consistent and
continued rendering of quality services and to ensure prompt availability and
accessibility of personnel to physicians in order to develop constant, familiar
and routine working relationships between the Employed Providers, Contracting
Providers and MANAGEMENT SERVICES personnel.

                  (d)      Employed Providers. MANAGEMENT SERVICES shall assist
the PC

                                     - 8 -
<PAGE>

in the administration of any employee benefit plans established by the PC in
compliance with the provisions of Section 1.10 hereof.

                  (e)      Managed Care Agreements. MANAGEMENT SERVICES shall
negotiate and administer all managed care agreements on behalf of the PC and
shall consult with the PC on all professional and clinical matters relating
thereto.

                           III. FINANCIAL ARRANGEMENTS

         3.1.     Service Fee. For the services to be provided hereunder by
MANAGEMENT SERVICES, the PC shall pay to MANAGEMENT SERVICES a Service Fee of
Five Hundred Thousand Dollars ($500,000.00) per month payable by the 15th day of
the month following the month for which the Service Fee is being paid. The
parties agree that the Service Fee represents the fair market value of the
services provided by MANAGEMENT SERVICES hereunder and that the parties shall
meet annually to reevaluate the value of services provided by MANAGEMENT
SERVICES and shall establish the fair market value thereof for purposes of this
Section 3.1.

         3.2.     Security Agreement; the PC Expenses. To secure the PC's
payment obligations hereunder, MANAGEMENT SERVICES may require the PC to enter
into a security agreement, in form acceptable to MANAGEMENT SERVICES, to grant
to MANAGEMENT SERVICES a security interest in the accounts receivable of the PC
and all of the PC's rights to receive payments under managed care contracts. The
PC shall cooperate with MANAGEMENT SERVICES and execute all reasonably necessary
documents in connection with the granting of such security interest.

         All payments on behalf of the PC from Patients and Payors shall be
deposited into one or more Collection Accounts. To the extent the PC receives
any such payments, the PC shall direct such payments to MANAGEMENT SERVICES for
deposit in one or more Collection Accounts.

         3.3.     Arbitration. Any controversy or claim arising out of or
relating to this Agreement or the transactions contemplated hereby, including
any controversy or claim arising out of or relating to the parties' decision to
enter into this Agreement or the transactions contemplated hereby, shall be
settled by binding arbitration. Each party shall select an arbitrator who has at
least three (3) years experience in health care or medical practice management
or in health care or medical practice dispute resolution. The arbitration
proceedings shall be confidential and the arbitrators may issue appropriate
protective orders to safeguard each party's confidential information. Such
protective orders shall be enforceable by any court of competent jurisdiction.
Except as specifically provided in this section, the arbitration shall be
conducted in accordance with the rules of conciliation and arbitration of the
American Arbitration Association. The two arbitrators shall agree upon any issue
no later than thirty (30) days after the date the second arbitrator has been
engaged, and shall take into account the principles and objectives set forth in
paragraph (b) below. If the two arbitrators cannot agree on a determination,
then within five (5) days thereafter the two arbitrators shall select a third
arbitrator, who shall have the same

                                     - 9 -
<PAGE>

qualifications required for the first two arbitrators. No later than thirty (30)
days after the date the third arbitrator is engaged, he or she shall determine
which of the two positions best satisfies the provisions of the contract and the
intent of the parties, taking into account the principles and objectives set
forth in paragraph (b) below. The third arbitrator shall have no right to
propose a middle ground between the two or to make any modification of the
proposals of either party. The third arbitrator's determination shall be final
and binding on all parties. The cost and expense of the third arbitrator shall
be shared equally between the parties. If either party fails to engage an
arbitrator as required hereunder, the arbitrator selected by the other party
shall conduct the arbitration and make the final decision in accordance with
this Section 3.4.

                  IV. REPRESENTATIONS AND WARRANTIES; COVENANTS

         4.1.     Representations and Warranties and Covenants of the PC.

                  (a)      The PC hereby represents and warrants to MANAGEMENT
SERVICES as follows:

                           (i)      The PC is and shall remain during the term
of this Agreement a professional corporation duly organized, validly existing
and in good standing under the laws of the State of North Carolina, actively
engaged in the practice of medicine, and possessing full corporate power and
authority to own its properties and to conduct the business in which it engages.

                           (ii)     The PC has full corporate power and
authority to execute and deliver this Agreement and to engage in the
transactions and obligations contemplated by this Agreement. Upon its execution,
this Agreement shall constitute a valid and binding obligation of the PC,
enforceable in accordance with its terms, except as limited by applicable
bankruptcy, insolvency, moratorium, or other similar laws affecting generally
the rights of creditors and by principles of equity. The party executing this
Agreement on behalf of the PC is duly authorized to do so.

                           (iii)    The consummation of the transactions
contemplated by this Agreement will not: result in a breach of the terms,
provisions, or conditions of or constitute a default under the Articles of
Incorporation, By-Laws or other enabling or governing instruments of the PC or
any agreement to which the PC is a party or by which it is bound; or, to the
best knowledge of the PC, constitute a violation of any applicable law or
regulation.

                  (b)      The PC hereby covenants to MANAGEMENT SERVICES that
it shall not, without the prior written consent of MANAGEMENT SERVICES, take any
action to terminate or nullify, or release any Employed Provider from, the terms
of any noncompetition covenant set forth in any employment agreement between the
PC and such Employed Provider.

         4.2.     Covenants and Warranties of MANAGEMENT SERVICES. MANAGEMENT
SERVICES hereby represents and warrants to the PC as follows:

                                     - 10 -
<PAGE>

                  (a)      MANAGEMENT SERVICES is and shall remain during the
term of this Agreement a corporation which is duly organized, validly existing
and in good standing under the laws of the State of North Carolina, possessing
full corporate power and authority to own its properties and to conduct the
business in which it engages.

                  (b)      MANAGEMENT SERVICES has full corporate power and
authority to execute and deliver this Agreement and to engage in the
transactions and obligations contemplated by this Agreement. Upon its execution,
this Agreement shall constitute a valid and binding obligation of MANAGEMENT
SERVICES, enforceable in accordance with its terms, except as limited by
applicable bankruptcy, insolvency, moratorium, or other similar laws affecting
generally the rights of creditors and by principles of equity. The party
executing this Agreement on behalf of MANAGEMENT SERVICES is duly authorized to
do so.

                  (c)      The consummation of the transactions contemplated by
this Agreement will not: result in any breach of the terms, provisions or
conditions of or constitute a default under the Certificate of Incorporation,
Bylaws or other enabling or governing instruments of MANAGEMENT SERVICES or any
agreement to which MANAGEMENT SERVICES is a party or by which it is bound; or,
to the best knowledge of MANAGEMENT SERVICES, constitute a violation of any
applicable law or regulation.

                             V. TERM AND TERMINATION

         5.1      Initial and Renewal Term. The term of this Agreement will be
for an initial period of twenty-five (25) years after the Effective Date, and
shall be automatically renewed for successive five (5) year periods thereafter
(collectively, the "Term"), provided that neither MANAGEMENT SERVICES nor the PC
shall have given notice of termination of this Agreement at least one hundred
twenty (120) days before the end of the initial term or any renewal term, or
unless otherwise terminated as provided in Section 5.2 of this Agreement.

         5.2      Termination.

                  (a)      Termination by the PC. The PC may immediately
terminate this Agreement at its discretion, upon written notice as follows:

                           (i)      If MANAGEMENT SERVICES becomes insolvent by
reason of its inability to pay its debts as they mature; is adjudicated bankrupt
or insolvent; files a petition in bankruptcy, reorganization or similar
proceeding under the bankruptcy laws of the United States or shall have such a
petition filed against it which is not discharged within thirty (30) days; has a
receiver or other custodian, permanent or temporary, appointed for its business,
assets or property; makes a general assignment for the benefit of creditors; has
its bank accounts, property or accounts attached; has execution levied against
its business or property; or voluntarily dissolved or liquidates or has a
petition filed for corporate dissolution and such petition is not dismissed with
thirty (30) days;

                                     - 11 -
<PAGE>

                           (ii)     If the MANAGEMENT SERVICES fails to comply
with any material provision of this Agreement, or any other agreement with the
PC, and does not correct such failure within sixty (60) days after written
notice of such failure to comply is delivered by the PC specifying the nature of
the breach in reasonable detail.

                  (b)      Termination by MANAGEMENT SERVICES. MANAGEMENT
SERVICES may immediately terminate this Agreement at its discretion, upon
written notice as follows:

                           (i)      If the PC becomes insolvent by reason of its
inability to pay its debts as they mature; is adjudicated bankrupt or insolvent;
files a petition in bankruptcy, reorganization or similar proceeding under the
bankruptcy laws of the United States or shall have such a petition filed against
it which is not discharged within thirty (30) days; has a receiver or other
custodian, permanent or temporary, appointed for its business, assets or
property; makes a general assignment for the benefit of creditors; has its bank
accounts, property or accounts attached; has execution levied against its
business or property; or voluntarily dissolves or liquidates or has a petition
filed for corporate dissolution and such petition is not dismissed with thirty
(30) days; or

                           (ii)     If the PC fails to comply with any material
provision of this Agreement with MANAGEMENT SERVICES, and does not correct such
failure within sixty (60) days after written notice of such failure to comply is
delivered by MANAGEMENT SERVICES specifying the nature of the breach in
reasonable detail.

                  (c)      Termination by Agreement. In the event the PC and
MANAGEMENT SERVICES shall mutually agree in writing, this Agreement may be
terminated on the date specified in such written agreement.

                  (d)      Legislative. Regulatory or Administrative Change. In
the event there shall be a change in the Medicare or Medicaid statutes, federal
statutes, state statutes, case laws, administrative interpretations, regulations
or general instructions, the adoption of new federal or state legislation, or a
change in any third-party reimbursement system, any of which are reasonably
likely to materially and adversely affect the manner in which either party may
perform or be compensated for its services under this Agreement or which shall
make this Agreement or any related agreements unlawful or unenforceable, or
which would be reasonably likely to subject either party to this Agreement, or
any member, shareholder, officer, director, employee, agent or affiliated
organization to any civil or criminal penalties or administrative sanctions, the
parties shall immediately use their best efforts to enter into a new service
arrangement or basis for compensation for the services furnished pursuant to
this Agreement that complies with the law, regulation, or policy, or which
minimizes the possibility of such penalties, sanctions or unenforceability, and
that approximates as closely as possible the economic position of the parties
prior to the change. If the parties are unable to reach a new agreement within a
reasonable time, then either party may submit the issue to arbitration pursuant
to Section 3.3 for

                                     - 12 -
<PAGE>

the purpose of reaching an alternative arrangement that is equitable under the
circumstances.

         5.3      Effects of Termination. Upon termination of this Agreement, as
provided in this Article V, neither party shall have any further obligations
hereunder except for (i) obligations accruing prior to the date of termination,
including, without limitation, payment of the Service Fee relating to services
provided prior to the termination of this Agreement, (ii) obligations, promises,
or covenants set forth herein that are expressly made to extend beyond the Term,
including, without limitation, insurance, indemnities and non-competition
provisions, which provisions shall survive the expiration or termination of this
Agreement. In effectuating the provisions of this Section 5.3, the PC
specifically acknowledges and agrees that if this Agreement terminates pursuant
to Sections 5.2(b) or (d), MANAGEMENT SERVICES shall continue for a period not
to exceed ninety (90) days to collect and receive on behalf of the PC on an
exclusive basis all cash collections from accounts receivable in existence at
the time this Agreement is terminated, it being understood that (a) such cash
collections may be used to compensate MANAGEMENT SERVICES for services rendered
prior to the termination of this Agreement, (b) MANAGEMENT SERVICES shall not be
entitled to collect accounts receivable after the termination date of this
Agreement is terminated pursuant to Section 5.2(a), and (c) the MANAGEMENT
SERVICES shall deduct for such cash collections any other amounts owed to
MANAGEMENT SERVICES under this Agreement, including, without limitation, any
reasonable costs incurred by MANAGEMENT SERVICES in carrying out the
post-termination procedures and transactions contemplated herein. MANAGEMENT
SERVICES shall remit remaining amounts from such collection activities, if any,
to the PC. Upon the expiration or termination of this Agreement for any reason
or cause whatsoever, MANAGEMENT SERVICES shall surrender to the PC all books and
records pertaining to the PC's Patient medical records and PC Records (as
defined in Section 7.2).

                                     - 13 -
<PAGE>

                            VI. RESTRICTIVE COVENANTS

         6.1.     Covenant Regarding Proprietary Information. In the course of
the relationship created pursuant to this Agreement, the PC will have access to
certain methods, trade secrets, processes, ideas, systems, procedures,
inventions, discoveries, concepts, software in various stages of development,
designs, drawings, specifications, models, data, documents, diagrams, flow
charts, research, economic and financial analysis, developments, procedures,
know-how, policy manuals, financial data, form contracts, marketing ad other
techniques, plans, materials, forms, copyrightable materials and trade
information regarding the operations of MANAGEMENT SERVICES and/or of its
Affiliates (collectively, the "Protected Parties"). The foregoing, together with
the existence and terms of this Agreement, are referred to in this Agreement as
"Proprietary Information". The PC shall maintain all such Proprietary
Information in strict secrecy and shall not divulge such information to any
third parties, except as may be necessary for the discharge of its obligations
under this Agreement. The PC shall take all necessary and proper precautions
against disclosure of any Proprietary Information to unauthorized persons by any
of its officers, directors, employees or agents. All officers, directors,
employees and agents of the PC who will have access to all or any part of the
Proprietary Information may be required to execute an agreement, at the
reasonable request of MANAGEMENT SERVICES, valid under the law of the
jurisdiction in which such agreement is executed, and in a form acceptable to
MANAGEMENT SERVICES and its counsel, committing themselves to maintain the
Proprietary Information in strict confidence and not to disclose it to any
unauthorized person or entity. The Protected Parties not party to this Agreement
are hereby specifically made third party beneficiaries of this Section 6.1, with
the power to enforce the provisions hereof. Upon termination of this Agreement
for any reason, the PC and each of its Employed Providers and Contracting
Providers shall cease all use of any of the Proprietary Information and, at the
request of MANAGEMENT SERVICES, shall execute such documents as may be necessary
to evidence the PC's abandonment of any claim thereto. The parties recognize
that a breach of this Section 6.1 cannot be adequately compensated in money
damages and therefore agree that injunctive relief shall be available to the
Protected Parties as their respective interests may appear.

         The obligations of the PC under this Section 6.1 shall not apply to
information: (i) which is a matter of public knowledge on or becomes a matter of
public knowledge after the Effective Date of this Agreement, other than as a
breach of the confidentiality terms of this Agreement or as a breach of the
confidentiality terms of any other agreement between the PC and MANAGEMENT
SERVICES or its Affiliates; or (ii) was lawfully obtained by the PC on a
nonconfidential basis other than in the course of performance under this
Agreement and from some entity other than MANAGEMENT SERVICES or its Affiliates
or from some person other than one employed or engaged by MANAGEMENT SERVICES or
its Affiliates, which entity or person has no obligation of confidentiality to
MANAGEMENT SERVICES or its Affiliates.

         6.2.     Covenants Not to Compete During the Term. The parties
recognize that the services to be provided by MANAGEMENT SERVICES shall be
feasible only if the PC operates an active medical practice to which the PC and
Employed Providers devote full time

                                     - 14 -
<PAGE>

and attention. To that end:

                  (a)      Restrictive Covenants by the PC. During the term of
this Agreement, the PC shall not establish, operate or provide physician or
other health care services at any medical office, clinic or other health care
facility providing services substantially similar to those provided by the PC
pursuant to this Agreement anywhere other than at the Offices and as may be
approved in writing by MANAGEMENT SERVICES. The PC shall also not enter into any
management or administrative services agreement or arrangement with any person
or entity other than MANAGEMENT SERVICES without MANAGEMENT SERVICES's prior
written approval.

                  (b)      Restrictive Covenants by Employed Providers. All
employment contracts between the PC and its Employed Providers shall name
MANAGEMENT SERVICES as a third-party beneficiary to the contract and shall not
be revised without the prior written consent of MANAGEMENT SERVICES. The
contracts shall include noncompetition agreements with its Employed Providers
who are physicians, the substance and form of which is set forth as Exhibit A
hereto, and which the PC will enforce.

         6.3.     Covenant Not to Compete Following Termination. For three (3)
years following the termination of this Agreement by MANAGEMENT SERVICES
pursuant to Section 5.2, the PC shall not enter into any management or
administrative services agreement or any similar arrangement with any person or
entity for the provision of the same or similar services as MANAGEMENT SERVICES
provides to the PC under this Agreement.

         6.4.     Covenant Not to Solicit. During the term of this Agreement
and for three (3) years following the termination of this Agreement, the PC
shall not:

                  (a)      Directly or indirectly solicit, recruit or hire, or
induce any party to solicit, recruit or hire any person who is an employee of,
or who has entered into an independent contractor arrangement with, MANAGEMENT
SERVICES or any Affiliate of MANAGEMENT SERVICES (excluding any person who
performs patient services);

                  (b)      Directly or indirectly, whether for itself or for any
other person or entity, call upon, solicit, divert or take away, or attempt to
solicit, call upon, divert or take away any of MANAGEMENT SERVICES's customers,
business, or clients; or

                  (c)      Disrupt, damage, impair or interfere with the
business of MANAGEMENT SERVICES.

         6.5.     Enforcement. MANAGEMENT SERVICES and the PC acknowledge and
agree that since a remedy at law for any breach or attempted breach of the
provisions of this Article VI or of Article VII shall be inadequate, either
party shall be entitled to specific performance and injunctive or other
equitable relief in case of any such breach or attempted breach, in addition to
whatever other remedies may exist by law. All parties hereto also waive

                                     - 15 -
<PAGE>

any requirement for the securing or posting of any bond in connection with the
obtaining of any such injunctive or other equitable relief. If any provision of
Article VI or Article VII relating to the restrictive period, scope of activity
restricted and/or other provisions described therein shall be declared by a
court of competent jurisdiction to exceed the maximum time period, scope of
activity restricted or geographical area such court deems reasonable and
enforceable under applicable law, the time period, scope of activity restricted
and/or area of restriction held reasonable and enforceable by the court shall
thereafter be the restrictive period, scope of activity restricted and/or the
territory applicable to the restrictive covenant provisions in this Article VI
or Article VII. The invalidity or non-enforceability of this Article VI or
Article VII in any respect shall not affect the validity or enforceability of
the remainder of this Article VI or Article VII or of any other provisions of
this Agreement.

                          VII. INFORMATION AND RECORDS

         7.1.     Ownership of Records. At all times during and after the term
of this Agreement, including any extensions or renewals hereof, all business
records, including but not limited to, business agreements, books of account,
general administrative records and all information generated under or contained
in the management information system pertaining to MANAGEMENT SERVICES's
obligations hereunder, and other business information of any kind or nature,
except for Patient medical records and the PC's Records (as defined in Section
7.2), shall be and remain the sole property of MANAGEMENT SERVICES; provided
that after termination of this Agreement the PC shall be entitled to reasonable
access to such records and information, including the right to obtain copies
thereof, for any purpose related to patient care or the defense of any claim
relating to patient care or the business of MANAGEMENT SERVICES or the PC.

         7.2.     The PC's Business and Financial Records. At all times during
and after the term of this Agreement, the financial, corporate and personnel
records and information relating exclusively to the business and activities of
the PC, as distinguished from the business and activity of MANAGEMENT SERVICES,
hereinafter referred to as "the PC's Records," shall be and remain the sole
property of the PC.

         7.3.     Access to Records. Each party shall be entitled, upon request
and with reasonable advance notice, to obtain access to all records of the other
party directly related to the performance of such party's obligations pursuant
to this Agreement; provided, however, that such right shall not allow for access
to records that must necessarily be kept confidential. Either party, at its
expense, shall have the right to make copies of any records to which it has
access pursuant to this Section.

         7.4.     Confidentiality of Records. MANAGEMENT SERVICES and the PC
shall adopt procedures for maintaining the confidentiality of the records
relating to the operations of MANAGEMENT SERVICES and the PC which do not
constitute Proprietary Information, which information is not otherwise available
to third parties publicly or by law, and shall comply with all applicable
federal and state statutes and regulations relating to such records. Patient

                                     - 16 -
<PAGE>

medical records and other privileged Patient information shall not be disclosed
or utilized by the PC or MANAGEMENT SERVICES or their agents or employees except
as required or permitted by applicable laws and regulations.

                               VIII. MISCELLANEOUS

         8.1.     Independent Contractor Status of Parties. In the performance
of the work, duties and obligations under this Agreement, it is mutually
understood and agreed that each party is at all times acting and performing as
an independent contractor with respect to the other and that no relationship of
partnership joint venture or employment is created by this Agreement. Neither
party, nor any other person performing services on behalf of such party pursuant
to this Agreement, shall have any right or claim against the other party for
Social Security benefits, workers' compensation benefits, disability benefits,
unemployment insurance benefits, health benefits, vacation pay, sick leave or
any other employee benefits of any kind.

         8.2.     No Waiver. The waiver by any party to this Agreement of any
breach of any term or condition of this Agreement shall not constitute a waiver
of subsequent breaches. No waiver by any party of any provision of this
Agreement shall be deemed to constitute a waiver of any other provision.

         8.3.     Notices. If, at any time after the execution of this
Agreement, it shall become necessary or convenient for one of the parties to
serve any notice, demand or communication upon the other party, such notice,
demand, or communication shall be in writing and shall be served personally, by
nationally recognized overnight courier which provides confirmation of delivery,
or by depositing the same in the United States mail, registered or certified,
return receipt requested, postage prepaid and to such address as either party
may have furnished to the other party in writing as the place for the service of
notice. Any notice so mailed shall be deemed to have been given three (3) days
after the same has been deposited in the United States mall; when delivered if
the same has been given personally; or the next business day if the same has
been delivered to a nationally recognized overnight courier service.

         8.4.     Assignment. Neither party may sell, transfer, assign, or
otherwise convey its rights or obligations under this Agreement without the
prior written consent of the other, which consent shall not be unreasonably
withheld. Notwithstanding the foregoing, MANAGEMENT SERVICES shall have the
right to (a) assign its rights and/or delegate all or any of its obligations to
any of its Affiliates; and/or (b) subcontract some portion of its obligations
hereunder to a third party which is not an Affiliate of MANAGEMENT SERVICES, in
each case without the consent of the PC.

         8.5.     Successors and Assigns. Subject to the provisions of this
Agreement respecting assignment, the terms, covenants and conditions contained
herein shall be binding upon and inure to the benefit of the successors and
permitted assigns of the parties hereto.

         8.6.     Severability. Nothing contained in this Agreement shall be
construed to require

                                     - 17 -
<PAGE>

the commission of an act contrary to law, and whenever there is any conflict
between any provision of this Agreement and any statute, law, ordinance or
regulation, the latter shall prevail. In such event, and in any case in which
any provision of this Agreement is determined to be in violation of a statute,
law, ordinance or regulation, the affected provision(s) shall be limited only to
the extent necessary to bring it within the requirements of the law and, insofar
as possible under the circumstances, to carry out the purposes of this
Agreement. The other provisions of this Agreement shall remain in full force and
effect, and the invalidity or unenforceability of any provision hereof shall not
affect the validity and enforceability of the other provisions of this
Agreement, nor the availability of all remedies in law or equity to the parties
with respect to such other provisions.

         8.7.     Third Parties. Except as provided in Article VII, nothing in
this Agreement shall be construed to create any duty to, any standard of care
with reference to or any liability to anyone not a party to this Agreement.

         8.8.     Headings. The headings used in this Agreement are for
convenience of reference only and shall have no force or effect in the
construction or interpretation of the provisions of this Agreement.

         8.9.     Time of the Essence. Time is of the very essence of each and
all of the agreements, covenants and conditions of this Agreement.

         8.10.    Governing Law. This Agreement shall be deemed made, executed
and entered into and shall be governed by and construed in accordance with the
internal laws of the State of Florida.

         8.11.    Language Construction. The language in all parts of this
Agreement shall be construed, in all cases, according to its fair meaning, and
not for or against either party hereto. The parties acknowledge that each party
and its counsel have reviewed and revised this Agreement and that the normal
rule of construction to the effect that any ambiguities are to be resolved
against the drafting party shall not be employed in the interpretation of this
Agreement.

         8.12.    Indemnification. The PC shall indemnify, hold harmless and
defend MANAGEMENT SERVICES, its officers, directors, shareholders, employees,
agents and independent contractors (the "MANAGEMENT SERVICES Group") from and
against any and all liabilities, losses, damages, claims, causes of action, and
expenses (including reasonable attorneys' fees and disbursements (a "MANAGEMENT
SERVICES Loss")), caused or asserted to have been caused, directly or
indirectly, by or as a result of the performance of medical services or any
other acts or omissions by MANAGEMENT SERVICES and/or its partners, agents,
employees and/or subcontractors (other than MANAGEMENT SERVICES) during the term
hereof except with respect to any MANAGEMENT SERVICES Loss which is the result
of any gross negligence or willful misconduct by a member of the MANAGEMENT
SERVICES Group. MANAGEMENT SERVICES shall indemnify, hold harmless and defend
the PC, its

                                     - 18 -
<PAGE>

officers, directors, partners employees, agents and independent contractors (the
"the PC Group") from and against any and all liabilities, losses, damages,
claims, causes of action, and expenses (including reasonable judgment attorneys'
fees and disbursements) (a "the PC Loss"), caused or asserted to have been
caused, directly or indirectly, by or as a result of the performance of any acts
of omissions by MANAGEMENT SERVICES and/or its shareholders, agents, employees
and/or subcontractors during the term hereof except with respect to any the PC
Loss which is the result of any gross negligence or willful misconduct by a
member of the PC Group.

         8.13.    Entire Agreement. This Agreement constitutes the entire
agreement between the parties with respect to the subject matter hereof and
supersedes all prior and contemporaneous agreements, understandings,
negotiations and discussions, whether written or oral, between or among parties
regarding the subject matter of this Agreement.

         8.14.    Incorporation by Reference. All exhibits and other attachments
to this Agreement are incorporated by reference into this Agreement by such
reference.

         8.15.    Amendments Only in Writing. This Agreement may not be amended
or modified in any respect whatsoever, except by an instrument in writing signed
by the parties hereto.

         8.16.    Counterparts. This Agreement may be executed in one or more
counterparts, each of which shall be considered an original and all of which
shall constitute one and the same agreement. This Agreement shall not become
effective until it has been executed by all of the parties hereto.

         8.17.    Commercial Impracticability. No party to this Agreement shall
be liable for any failure to perform its obligations hereunder where such
failure results from any cause beyond that party's reasonable control,
including, for example, an act of God, labor disturbance such as a strike or
walkout, war, riot, fire, storm, accident, government regulation or
interference, or mechanical, electronic or communications failure.

         8.18.    Election of Remedies. The respective rights of the parties to
this Agreement shall be cumulative. Each party shall have all other rights and
remedies consistent with this Agreement as law and equity may provide. No
exercise by any party of one right or remedy shall be deemed to be an exclusive
election of rights or remedies.

         8.19.    Survival. The provisions of Articles III, IV, V, VI, VII and
VIII shall survive any termination of this Agreement.

         8.20.    Third Party Beneficiaries. Except with respect to Affiliates
of MANAGEMENT SERVICES, nothing in this Agreement shall be construed to create
any duty to, any standard of care with reference to, or any liability to any
Person not a party to this Agreement. The Affiliates of MANAGEMENT SERVICES are
intended third party beneficiaries of this Agreement.

                                     - 19 -
<PAGE>

         8.21     Affiliate. An "Affiliate" of an entity means (i) any person or
entity directly or indirectly controlled by such entity; (ii) any person or
entity directly or indirectly controlling such entity; (iii) any subsidiary of
such entity if the entity has a fifty percent (50%) or greater ownership
interest in the subsidiary; or (iv) such entity's parent entity if the parent
has a fifty percent (50%) or greater ownership interest in the entity. For
purposes of this Agreement, the PC is not an Affiliate of MANAGEMENT SERVICES.

         IN WITNESS WHEREOF, MANAGEMENT SERVICES and the PC have caused this
Agreement to be executed by their duly authorized respective officers as of the
Effective Date.

Signed and sealed in the
  presence of:

/s/ MARIA M. SUAREZ                            NORTH CAROLINA RADIATION THERAPY
-------------------------------                MANAGEMENT SERVICES, INC.
Printed name: MARIA M. SUAREZ
(witness 1)

                                               By: /s/ Daniel E. Dosoretz
                                                   -----------------------------
/s/ Deanna Heminger                                Daniel E. Dosoretz, M.D.
-------------------------------                    President
Printed name: Deanna Heminger
(witness 2)

                                               RADIATION THERAPY ASSOCIATES OF
/s/ MARIA M. SUAREZ                            WESTERN NORTH CAROLINA, P.A.
-------------------------------
Printed name: MARIA M. SUAREZ
(witness 1)

                                               By: MICHAEL J. KATIN

                                                   President

/s/ Deanna Heminger
-------------------------------
Printed name: Deanna Heminger
(witness 2)

                                     - 20 -
<PAGE>

STATE OF FLORIDA   )
                              )
COUNTY OF LEE                 )

         The foregoing instrument was acknowledged before me this 18th day of
January, 2002, by Daniel E. Dosoretz, M.D., the President of North Carolina
Radiation Therapy Management Services, Inc., a North Carolina corporation
organized under the laws of the State of North Carolina, on behalf of the
corporation.

    [SEAL]                                Signature: /s/ MARIA M. SUAREZ
  MARIA MARGARITA SUAREZ                  ________________________________
  MY COMMISSION # CC 883146                 Printed name: MARIA M. SUAREZ
  EXPIRES: February 26, 2004                Notary Public
  Bonded Thru Notary Public Underwriters

AdministrativeServicesAgreementNorthCarolina
GDS 12/17/01

STATE OF FLORIDA   )
                              )
COUNTY OF LEE                 )

         The foregoing instrument was acknowledged before me this 19 (th) day of
December, 2002, by M. Katin, M.D., the President of Radiation Therapy Associates
of Western North Carolina, P.A., a North Carolina professional corporation
organized under the laws of the State of North Carolina, on behalf of the
corporation.

    [SEAL]                                Signature: /s/ MARIA M. SUAREZ
                                                     ---------------------------
MARIA MARGARITA SUAREZ                    Printed name: MARIA M. SUAREZ
MY COMMISSION # CC 883146                 Notary Public
EXPIRES: February 26, 2004
Bonded Thru Notary Public Underwriters

AdministrativeServicesAgreementNorthCarolina
GDS 12/17/01

                                     - 21 -

<PAGE>

                                    EXHIBIT A

                            NONCOMPETITION AGREEMENT

                   NON-COMPETITIVE AND RESTRICTIVE AGREEMENTS.

                           A.       During the term of this Agreement and any
renewal period, Physician shall not undertake any professional service except as
directed and authorized by [Employer] and shall not engage in any profession
other than the rendition of the professional services as directed by [Employer].

                           B.       In the event of the termination of this
Agreement for any reason, Physician agrees not to directly or indirectly engage
in the practice of radiation therapy or oncology, or otherwise compete with
[Employer], or any of its physician providers, by practicing as a radiation
therapist or oncologist (i) at any hospital in which physician providers of
[Employer] regularly admit patients, or (ii) within any county in which
[Employer] or any of its Affiliates operate an Office for a period of two (2)
years after the date of such actual termination of this Agreement. The purpose
of this covenant is to protect [Employer] from the irreparable harm it will
suffer if Physician competes with [Employer] after having been introduced to
[Employer]'s personnel and patients and after learning special medical
procedures used by [Employer]'s physician providers, [Employer]'s business
procedures, office and practice policies, and the special and confidential
professional procedures developed by [Employer].

                           C.       The parties agree that in the event of any
breach or attempted breach of any of the covenants set out in section B (the
"Covenant Not to Compete"), [Employer] will be entitled to equitable relief by
way of injunction or otherwise, in addition to any remedy at law which may be
available. The parties agree that any violation or threatened violation by
Physician of the Covenant Not to Compete will cause [Employer] to suffer
irreparable harm. The parties agree that [Employer]'s remedy of an injunction is
not the exclusive remedy for breach of the Covenant Not to Compete and that a
court may grant such additional relief as is reasonable.

                           D.       In the event Physician breaches the Covenant
Not to Compete, in addition to the injunctive relief to which [Employer] shall
be entitled under the law, Physician shall immediately repay to [Employer] any
amounts paid by [Employer] pursuant to section 3.B hereof after the termination
of this Agreement, and all severance or termination pay, if any, paid pursuant
to this Agreement. [Employer] may offset against any amounts owed Physician
pursuant to this Agreement any amounts Physician owes [Employer] pursuant to
paragraph E below for breach of the Covenant Not to Compete.

                           E.       In addition to the injunctive relief to
which [Employer] is entitled under the law and in addition to the payments
provided for in paragraph D above and in order to compensate [Employer] for the
damages it will incur in recruiting and compensating a

                                     - 22 -
<PAGE>

replacement radiation oncologist and for the lost business it will suffer, in
the event of a breach by Physician of the Covenant Not to Compete, Physician
shall also pay to [Employer], as liquidated damages, a sum equal to a percentage
of the gross billings of [Employer] for the twelve month period immediately
preceding the termination of this Agreement. The percentage shall be that formed
by dividing the number one by the number equal to the total number of physician
providers of [Employer], including Physician, on the date of termination of this
Agreement. The parties agree that, in the event of the breach by Physician of
the Covenant Not to Compete, the actual amount of damages which would be
incurred by [Employer] would be difficult to ascertain and prove, and that
therefore the liquidated damages sum set forth herein would be reasonable and
appropriate.

                           F.       In the event the Covenant Not to Compete
shall be determined by a court of competent jurisdiction to be unenforceable by
reason of its geographic or temporal restrictions being too great, or by reason
that the range of activities covered is too great, or for any other reason,
section B shall be interpreted to extend over the maximum geographic area,
period of time, range of activities or other restrictions as to which it may be
enforceable.

AdministrativeServicesAgreementNorthCarolina
GDS 12/17/01

                                     - 23 -
<PAGE>

                  ADDENDUM TO ADMINISTRATIVE SERVICES AGREEMENT
                                "North Carolina"

         This Addendum (the "Addendum") is effective as of January 1, 2002, by
and among NORTH CAROLINA RADIATION THERAPY MANAGEMENT SERVICES, INC., a North
Carolina corporation ("MANAGEMENT SERVICES") and RADIATION THERAPY ASSOCIATES OF
WESTERN NORTH CAROLINA, P.A., a North Carolina professional corporation (the
"PC"). This Addendum amends Section 3.1 of the Administrative Services Agreement
dated January 1, 2002 between the parties (the "Agreement").

         From and after the date hereof, Section 3.1 shall read as follows:

                        3.1. Service Fee. For the services to be provided
                hereunder by MANAGEMENT SERVICES, the PC shall pay to MANAGEMENT
                SERVICES a monthly Service Fee of $567,500.00. The parties agree
                that the Service Fee represents the fair market value of the
                services provided by MANAGEMENT SERVICES hereunder and that the
                parties shall meet annually to reevaluate the value of services
                provided by MANAGEMENT SERVICES and shall establish the fair
                market value thereof for purposes of this Section 3.1.

Accepted:                                      NORTH CAROLINA RADIATION
                                               THERAPY MANAGEMENT SERVICES,
                                               INC.

                                               By: /s/ David Koeninger
                                                   -----------------------------
                                                   David Koeninger
                                                   Chief Financial Officer

Accepted:                                      RADIATION THERAPY ASSOCIATES
                                               OF WESTERN NORTH CAROLINA, P.A.

                                               By: /s/ Michael J. Katin
                                                   -----------------------------
                                                   Michael J. Katin, M.D.
                                                   President

<PAGE>

                  ADDENDUM TO ADMINISTRATIVE SERVICES AGREEMENT
                                "North Carolina"

         This Addendum (the "Addendum") is effective as of January 1, 2003, by
and among NORTH CAROLINA RADIATION THERAPY MANAGEMENT SERVICES, INC., a North
Carolina corporation ("MANAGEMENT SERVICES") and RADIATION THERAPY ASSOCIATES OF
WESTERN NORTH CAROLINA, P.A., a North Carolina professional corporation (the
"PC"). This Addendum amends Section 3.1 of the Administrative Services Agreement
dated January 1, 2002 between the parties (the "Agreement").

         From and after the date hereof, Section 3.1 shall read as follows:

                        3.1. Service Fee. For the services to be provided
                hereunder by MANAGEMENT SERVICES, the PC shall pay to MANAGEMENT
                SERVICES a monthly Service Fee of $628,333.33. The parties agree
                that the Service Fee represents the fair market value of the
                services provided by MANAGEMENT SERVICES hereunder and that the
                parties shall meet annually to reevaluate the value of services
                provided by MANAGEMENT SERVICES and shall establish the fair
                market value thereof for purposes of this Section 3.1.

Accepted:                                      NORTH CAROLINA RADIATION
                                               THERAPY MANAGEMENT SERVICES, INC.

                                               By: /s/ David Koeninger
                                                   -----------------------------
                                                   David Koeninger
                                                   Chief Financial Officer

Accepted:                                      RADIATION THERAPY ASSOCIATES
                                               OF WESTERN NORTH CAROLINA, P.A.

                                               By: /s/ Michael J. Katin
                                                   -----------------------------
                                                   Michael J. Katin, M.D.
                                                   President

<PAGE>

                  ADDENDUM TO ADMINISTRATIVE SERVICES AGREEMENT

         This Addendum (the "Addendum") is entered into as of January 1, 2004,
by and between NORTH CAROLINA RADIATION THERAPY MANAGEMENT SERVICES, INC., a
North Carolina corporation ("MANAGEMENT SERVICES") and RADIATION THERAPY
ASSOCIATES OF WESTERN NORTH CAROLINA, P.A., a North Carolina professional
corporation (the "PA"). This Addendum amends Section 3.1 of the Administrative
Services Agreement dated January 1, 2002 between the parties (the "Agreement")
and replaces the Addendum of that same Section dated January 1, 2003.

         From and after the date hereof, Section 3.1 shall read as follows:

                        3.1. Service Fee. For the services to be provided
                hereunder by MANAGEMENT SERVICES, the PC shall pay to MANAGEMENT
                SERVICES a monthly Service Fee of $646,667.00. The parties agree
                that the Service Fee represents the fair market value of the
                services provided by MANAGEMENT SERVICES hereunder and that the
                parties shall meet annually to reevaluate the value of services
                provided by MANAGEMENT SERVICES and shall establish the fair
                market value thereof for purposes of this Section 3.1.

                        Accepted:              NORTH CAROLINA RADIATION
                                               THERAPY MANAGEMENT SERVICES,
                                               INC.

                                               By: /s/ David Koeninger
                                                   -----------------------------
                                                       David Koeninger
                                                       Vice President and CFO

                        Accepted:              RADIATION THERAPY ASSOCIATES
                                               OF WESTERN NORTH CAROLINA, P.A.

                                               By: /s/ Daniel E. Dosoretz
                                                   -----------------------------
                                                   Daniel E. Dosoretz, M.D.
                                                   Vice President

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