SecProbe.io

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                            [RADNET, INC. LETTERHEAD]

September 11, 2008

VIA EDGAR AND FEDEX

Mr. John Reynolds, Assistant Director
U.S. Securities and Exchange Commission
Mail Stop 3561
100 F. Street, N.E.
Washington, D.C. 20549

      Re:   RadNet, Inc. - Form 10-K for Fiscal Year Ended December 31, 2007,
            Filed on February 29, 2008 (File No. 001-10593)

Dear Mr. Reynolds:

      We are responding to the comments in your letter to RadNet, Inc., dated
September 8, 2008, concerning our Form 10-K referred to above.

      Set forth below are our responses to the Staff's comments. For your
convenience, we have included each of the Comments in italicized text before the
corresponding response.

RESPONSES:

SCHEDULE 14A
------------

COMPENSATION OF DIRECTORS AND EXECUTIVE OFFICERS, PAGE 29
---------------------------------------------------------

      1.    WE NOTE YOUR RESPONSE TO PRIOR COMMENT ONE AND THE STATEMENT THAT
            YOU DO NOT CURRENTLY USE PERFORMANCE TARGETS. WE NOTE, HOWEVER,
            DISCLOSURE ON PAGE 25 OF YOUR PROXY STATEMENT INDICATING THAT YOU
            AND THE CEO INTEND TO REVIEW "STRATEGIC OBJECTIVES AND PERFORMANCE
            TARGETS" AND THAT YOU WILL REVIEW THE APPROPRIATENESS OF THE
            FINANCIAL MEASURES USED IN INCENTIVE PLANS AND THE DEGREE OF
            DIFFICULTY IN ACHIEVING SPECIFIC PERFORMANCE TARGETS. YOU ALSO STATE
            ON PAGE 25 THAT CORPORATE PERFORMANCE OBJECTIVES "TYPICALLY ARE
            ESTABLISHED ON THE BASIS OF A TARGETED RETURN ON CAPITAL" USED FOR
            THE COMPANY OR A PARTICULAR BUSINESS UNIT. WITH A VIEW TO DISCLOSURE
            IN FUTURE FILINGS, PLEASE ADVISE US OF THE "STRATEGIC OBJECTIVES AND
            PERFORMANCE TARGETS" REFERENCED ON PAGE 25. IT IS UNCLEAR WHAT THOSE
            TARGETS RELATE TO AND WHY THEY ARE NOT RELEVANT TO PRIOR COMMENT
            ONE. FOR EXAMPLE, IT IS UNCLEAR IF THE COMPANY CONSIDERED USING
            PERFORMANCE TARGETS BUT LATER DECIDED OTHERWISE. ADVISE US OF WHAT
            DISCLOSURE THE COMPANY INTENDS TO PROVIDE IN FUTURE FILINGS
            REGARDING THESE TARGETS. WE MAY HAVE FURTHER COMMENT.

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Mr. Reynolds
September 11, 2008
Page 2

      We apologize for the confusion we have caused regarding our performance
      objectives. We do engage in an active dialogue with the Chief Executive
      Officer concerning strategic objectives and performance targets. However,
      as a result of those discussions, we did not set any performance targets
      for the fiscal year ended December 2007. We may establish performance
      objectives in the future and that may be done on the basis of a targeted
      return on capital, per our disclosure. Assuming our process does not
      change, we propose to include the following disclosure in future filings:

            "PERFORMANCE OBJECTIVES

            Our process begins with determining whether we will establish
            individual and corporate performance objectives for senior executive
            officers in each fiscal year. We engage in an active dialogue with
            the Chief Executive Officer concerning whether to use strategic
            objectives and performance targets. Corporate performance objectives
            may be established on the basis of a targeted return on capital
            employed for RadNet or a particular business unit."

      If you have any questions, please contact me at (310) 478-7808.

                                                Very truly yours,

                                                /s/ Dr. Howard G. Berger

                                                Dr. Howard G. Berger
                                                Chief Executive Officer

cc:      Mr. David Swartz, Audit Committee Chairman, RadNet, Inc.
         Mr. Jeffrey Linden, Executive Vice President and General Counsel,
         RadNet, Inc.
         Linda Michaelson, Esq.

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