Exhibit 10.24

 

ADDENDUM TO ADMINISTRATIVE SERVICES AGREEMENT

 

This Addendum (the “Addendum”) is entered into effective as of January 1, 2006,
by and between NEVADA RADIATION THERAPY MANAGEMENT SERVICES, INC., a Nevada
corporation (“MANAGEMENT SERVICES”) and MICHAEL J. KATIN, M.D., PROF. CORP, a
Nevada professional corporation (the “PA”). This Addendum amends Section 3.1 of
the Administrative Services Agreement dated January 1, 2002 between the parties
(the “Agreement”) to adjust the monthly Service Fee of $570,683.33 paid in 2005
to a monthly Service Fee of $595,683.33, and replaces the Addendum of that same
Section dated January 1, 2005. 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
$595,683.33. 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:    NEVADA RADIATION THERAPY MANAGEMENT
SERVICES, INC.      By:  

/s/ David Koeninger

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         David Koeninger          Vice President and CFO
                                       
                                Accepted:   

MICHAEL J. KATIN, M.D., PROF. CORP.

     By:  

/s/ Daniel E. Dosoretz, M.D.

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         Daniel E. Dosoretz, M.D.          Vice President