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 report of UnitedHealth Group Incorporated (the “Company”) on Form 10-K for the period ended December 31, 2015 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. |
| February 9, 2016 | /s/ STEPHEN J. HEMSLEY |
Stephen J. Hemsley Chief Executive Officer | |
Certification of Principal Financial Officer
In connection with the report of UnitedHealth Group Incorporated (the “Company”) on Form 10-K for the period ended December 31, 2015 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, David S. Wichmann, 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. |
| February 9, 2016 | /s/ DAVID S. WICHMANN |
David S. Wichmann President and Chief Financial Officer | |