EXHIBIT 99.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report of Rx Medical Services Corp. (the "Company") on Form 10-Q for the period ended June 30, 2002 as filed with the Securities and Exchange on the date hereof (the "Report"), I Michael L. Goldberg, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that: (1) The Report fully complies with the requirements of Section 13 (a) or 15(d) of the Securities and Exchange Act of 1934; and (2) The financial information contained in the report fairly presents, in all material respects, the financial condition and results of operations of the Company. By: /s/ Michael L. Goldberg --------------------------------- Michael L. Goldberg Chief Executive Officer Date: August 14, 2002