1 EXHIBIT 23 ACCOUNTANTS' CONSENT The Board of Directors Response Oncology, Inc.: We consent to incorporation by reference in the Registration Statement (No. 33-45616) on Form S-8, the Registration Statement (NO. 33-21333) on Form S-8 and the Registration Statement (No. 333-14371) on Form S-8 of Response Oncology, Inc. of our report dated March 10, 2000, except as to the fourth Paragraph of Note E, which is as of March 30, 2000, relating to the consolidated balance sheets of Response Oncology, Inc. and subsidiaries as of December 31, 1999 and 1998, and the related consolidated statements of operations, stockholders' equity, and cash flows for each of the years in the three-year period ended December 31, 1999, and the related schedule, which report appears in the December 31, 1999, annual report on Form 10-K of Response Oncology, Inc. KPMG LLP Memphis, Tennessee March 30, 2000