United Healthcare 2010 Annual Report Download - page 154

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Exhibit 24.1
POWER OF ATTORNEY
KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below hereby constitutes and
appoints Christopher J. Walsh and Dannette L. Smith, and each of them, his or her true and lawful attorneys-in-fact and agents, each
acting alone, with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all
capacities, to sign an Annual Report on Form 10-K for the year ended December 31, 2010 for UnitedHealth Group Incorporated, and
any and all amendments thereto, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the
Securities and Exchange Commission, granting authority to do and perform each and every act and thing requisite or necessary to be
done in and about the premises, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, each acting alone, or his or her substitute or substitutes, may lawfully do or cause
to be done by virtue hereof.
IN WITNESS WHEREOF, the undersigned have executed this Power of Attorney as of the date set forth below.
/s/ William C. Ballard, Jr.
/s/ Douglas W. Leatherdale
William C. Ballard, Jr.
Dou
g
las W. Leatherdale
Director
Director
Dated: Februar
y
9, 2011
Dated: Februar
y
9, 2011
/s/ Richard T. Burke
/s/ Glenn M. Renwic
k
Richard T. Burke
Glenn M. Renwic
k
Director
Director
Dated: Februar
y
9, 2011
Dated: Februar
y
9, 2011
/s/ Robert J. Darretta
/s/ Kenneth I. Shine, M.D.
Robert J. Darretta
Kenneth I. Shine, M.D.
Director
Director
Dated: Februar
y
9, 2011
Dated: Februar
y
9, 2011
/s/ Michele J. Hooper
/s/ Gail R. Wilensky, Ph.D.
Michele J. Hoo
p
er
Gail R. Wilensk
y
, Ph.D.
Director
Director
Dated: Februar
y
9, 2011
Dated: Februar
y
9, 2011
/s/ Rodger A. Lawson
Rod
g
er A. Lawson
Director
Dated: Februar
y
9, 2011