10-Q: Quarterly report pursuant to Section 13 or 15(d)

Published on April 30, 2003


EXHIBIT 99.1


CERTIFICATE 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 on Form 10-Q of Centene
Corporation (the Company) for the period ended March 31, 2003, as filed with the
Securities and Exchange Commission on the date hereof (the Report), the
undersigned, Michael F. Neidorff, President and Chief Executive Officer of the
Company, hereby certifies, pursuant to 18 U.S.C. Section 1350, 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 information contained in the Report fairly presents, in all
material respects, the financial condition and results of
operations of the Company.

A signed original of this written statement required by Section 906 has
been provided to the Company and will be retained by the Company and furnished
to the Securities and Exchange Commission or its staff upon request.


/s/ Michael F. Neidorff
----------------------------------
Michael F. Neidorff
President and Chief Executive Officer
(principal executive officer)

Dated: April 30, 2003

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 on Form 10-Q of Centene Corporation
(the Company) for the period ended March 31, 2003, as filed with the
Securities and Exchange Commission of the date hereof (the Report), the
undersigned, Karey L. Witty, Senior Vice President, Chief Financial Officer and
Treasurer of the Company, hereby certifies, pursuant to 18 U.S.C. Section 1350,
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 information contained in the Report fairly presents, in all
material respects, the financial condition and results of operations
of the Company.

A signed original of this written statement required by Section 906 has
been provided to the Company and will be retained by the Company and furnished
to the Securities and Exchange Commission or its staff upon request.


/s/ Karey L. Witty
--------------------------------------
Karey L. Witty
Senior Vice President, Chief Financial
Officer and Treasurer
(principal financial and accounting
officer)

Dated: April 30. 2003