He is a native of Rhode Island and received his bachelor’s degree in pharmacy from the University of Rhode Island in 1980. Mr. Callahan has over 30 years of experience with the Department of Veterans Affairs. Prior to his appointment as Associate Director, Mr. Callahan was Chief of Health Administration Service at the VA Medical Center Philadelphia, Penn. He began his VA career as a staff pharmacist in 1980 and since that time has served in increasingly complex leadership roles including Assistant Chief of Pharmacy, Project Coordinator/Facility Planner and Executive Assistant to the director. He is a graduate of the Network Healthcare Leadership Institute (NEHCLI) and a graduate of VA’s Executive Career Field Training Program (ECF) and Healthcare Leadership Institute. He is nationally certified as a Fellow Mentor. Mr. Callahan served as Acting Associate Director at VA Medical Center Fargo, North Dakota and from May to October 2010, he served a six-month detail as acting Associate Director at VAMC Philadelphia.