American College of Physicians

American College of Physicians
AbbreviationACP
FormationJanuary 8, 1915
Headquarters190 North Independence Mall West, Philadelphia, Pennsylvania, U.S.
Membership161,000
Websiteacponline.org

The American College of Physicians (ACP) is a Philadelphia-based national organization of internal medicine physicians, who specialize in the diagnosis, treatment, and care of adults. With 161,000 members, ACP is the largest medical-specialty organization and second-largest physician group in the United States. Its flagship journal, the Annals of Internal Medicine, is among the most widely cited peer-reviewed medical journals in the world.