Erwin J. Tan, MD is the Director of Thought Leadership – Health at AARP and a board certified internist and geriatrician. Erwin previously served as the director of Senior Corps at the Corporation for National and Community Service. From 2004 to 2010, he served as an assistant professor of medicine at the Johns Hopkins School of Medicine where he was an attending physician in the Division of Geriatric Medicine. He was also a co-investigator in the Baltimore Experience Corps Study. From 2003-2004, Erwin was a White House Fellow serving as a Special Assistant to the Secretary of Veterans Affairs. Before coming to the Washington, D.C. Metropolitan area, Erwin was a faculty member at the University of California, San Francisco School of Medicine, where he served as Geriatric Medicine Fellow and a Primary Care Medicine Resident. Erwin was commissioned as a 2nd Lieutenant in the United States Army Reserves. He received a bachelor’s from Brown University and graduated from New York University School of Medicine.