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 Yearly Report of American Medical Security
Group, Inc. (the "Company") on Form 10-K for the period ended December 31, 2002
as filed with the Securities and Exchange Commission on the date hereof (the
"Report"), I, Samuel V. Miller, Chief Executive Officer of the Company, certify,
pursuant to 18 U.S.C. ss.1350, as adopted pursuant to ss.906 of the
Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

         (1) The Report fully complies with the requirements of section 13(a) or
15(d) of the Securities Exchange Act of 1934; and

         (2) The information contained in the Report fairly presents, in all
material respects, the financial condition and results of operations of the
Company.

/s/ Samuel V. Miller
-----------------------------------------
Samuel V. Miller, Chief Executive Officer
March 14, 2003

This certification accompanies this Report pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002 and shall not be deemed filed by the Company for
purposes of Section 18 of the Securities Exchange Act of 1934, as amended.