CERTIFICATION
PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
(SUBSECTIONS (a) AND (b) OF SECTION 1350, CHAPTER 63 OF TITLE 18,
UNITED STATES CODE)
Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code), the undersigned officer of Magellan Health Services, Inc., a Delaware corporation (the "Company"), does hereby certify, that to his knowledge:
The Quarterly Report on Form 10-Q for the quarter ended June 30, 2002 (the "Form 10-Q") of the Company fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 and information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.
| Dated: August 14, 2002 | /s/ DANIEL S. MESSINA Daniel S. Messina President and Chief Executive Officer |
