Attached files

file filename
EX-31.2 - EXHIBIT 31.2 - MCKESSON CORPmck_exhibit312x3312016.htm
EX-10.18 - EXHIBIT 10.18 - MCKESSON CORPmck_exhibit1018x3312016.htm
EX-10.14 - EXHIBIT 10.14 - MCKESSON CORPmck_exhibit1014x3312016.htm
EX-21 - EXHIBIT 21 - MCKESSON CORPmck_exhibit21x3312016.htm
EX-12 - EXHIBIT 12 - MCKESSON CORPmck_exhibit12x33116.htm
EX-10.19 - EXHIBIT 10.19 - MCKESSON CORPmck_exhibit1019x3312016.htm
EX-23 - EXHIBIT 23 - MCKESSON CORPmck_exhbit23x3312016.htm
10-K - 10-K - MCKESSON CORPmck_10kx3312016.htm
EX-31.1 - EXHIBIT 31.1 - MCKESSON CORPmck_exhibit311x3312016.htm
EX-32 - EXHIBIT 32 - MCKESSON CORPmck_exhibit32x3312016.htm



Exhibit 24

POWER OF ATTORNEY


KNOW ALL PERSONS BY THESE PRESENTS, that each of the undersigned directors and officers of McKesson Corporation, a Delaware corporation, does hereby constitute and appoint James A. Beer, Lori A. Schechter and John G. Saia such undersigned’s true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for such undersigned 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 fiscal year ended March 31, 2016, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as such undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or each of them, or their or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof. This Power of Attorney may be signed in several counterparts.

/s/ James A. Beer
 
/s/ Donald R. Knauss
James A. Beer, Executive Vice President and
Chief Financial Officer
(Principal Financial Officer)
 
Donald R. Knauss, Director


 
 
 
/s/ Andy D. Bryant
 
/s/ Marie L. Knowles
Andy D. Bryant, Director


 
Marie L. Knowles, Director


 
 
 
/s/ Wayne A. Budd
 
/s/ David M. Lawrence
Wayne A. Budd, Director
 
David M. Lawrence, M.D., Director


 
 
 
/s/ N. Anthony Coles
 
/s/ Edward A. Mueller
N. Anthony Coles, M.D., Director
 
Edward A. Mueller, Director


 
 
 
/s/ John H. Hammergren
 
/s/ Susan R. Salka
John H. Hammergren, Chairman of the Board,
President and Chief Executive Officer
(Principal Executive Officer)
 
Susan R. Salka, Director
 
 
 
/s/ Alton F. Irby
 
/s/ Nigel A. Rees
Alton F. Irby III, Director


 
Nigel A. Rees, Senior Vice President and Controller
(Principal Accounting Officer)
 
 
 
/s/ M. Christine Jacobs
 
 
M. Christine Jacobs, Director


 
 
 
 
 
Dated: April 27, 2016