EXHIBIT 23 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in the previously filed Registration Statement (Form S-8, No. 333-61876) of our report dated February 5, 2007, relating to the consolidated financial statements and financial statement schedule of RadNet, Inc. and affiliates included in this Annual Report on Form 10-K for the year ended October 31, 2006. /s/ Moss Adams LLP - ----------------------------- Los Angeles, California February 5, 2007