Exhibit 32.01

        I, Robert D. Walter, Chairman and Chief Executive Officer, of Cardinal
Health, Inc. (the "Company"), certify, pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002, that:

(1)     the Quarterly report on Form 10-Q for the fiscal quarter ended March 31,
        2004 (the "Periodic Report") containing the financial statements of the
        Company, which this statement accompanies, fully complies with the
        requirements of Section 13(a) or 15(d) of the Securities Exchange Act of
        1934 (15 U.S.C. 78m or 78o(d)), and

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



Dated: May 14, 2004


                                    /s/ Robert D. Walter
                                    -----------------------------
                                    Robert D. Walter
                                    Chairman and
                                    Chief Executive Officer