Investor Relations

For investment community questions and requests for information on upcoming meetings or conference calls, recent presentations, financial information, and similar matters, please contact:

Investor Relations
investors@mckesson.com

Corporate Secretary

For general shareholder questions please contact:
Corporate Secretary’s Office
corporatesecretary@mckesson.com

Transfer Agent

EQ Shareowner Services
1110 Centre Pointe Curve, Suite 101
Mendota Heights, MN 55120-4100
1-800-401-1957
https://www.shareowneronline.com/UserManagement/WFIndex.aspx

Mail
EQ Shareowner Services
PO Box 64874
St Paul, MN 55164-0874

If you have questions on your tax documents or need a replacement document issued prior to February 10, 2011, please contact our former transfer agent, BNY Mellon (now Computershare) at 800-522-6645.

Questions regarding PSS World Medical stock should be directed to American Stock Transfer & Trust Company at (877) 248-6417 (U.S. and Canada) or (718) 921-8317 (International).

Questions regarding US Oncology stock should be directed to BNY Mellon (now Computershare) at 1 (800) 777-3674.