EXHIBIT 32.1
CERTIFICATIONS PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
Certification of Principal Executive Officer
In connection with the Quarterly Report of UnitedHealth Group Incorporated (the “Company”) on Form 10-Q for the period ended June 30, 2010 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Stephen J. Hemsley, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that to 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. |
August 5, 2010 | /s/ STEPHEN J. HEMSLEY | |
Stephen J. Hemsley President and Chief Executive Officer |
Certification of Principal Financial Officer
In connection with the Quarterly Report of UnitedHealth Group Incorporated (the “Company”) on Form 10-Q for the period ended June 30, 2010 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, George L. Mikan III, certify pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that to 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. |
August 5, 2010 | /s/ GEORGE L. MIKAN III | |
George L. Mikan III Executive Vice President and Chief Financial Officer |
