Gregory Spencer, MD, FACP is the chief medical officer and chief clinical information officer at Crystal Run Healthcare. He joined Crystal Run as an internist in 1996. Spencer is board certified in internal medicine and is a Fellow of the American College of Physicians.

Spencer graduated from the Medical College of Wisconsin (Marquette University) Medical School and completed his residency in internal medicine while in the U.S. Air Force at Wilford Hall USAF Medical Center in San Antonio, Tex. Prior to joining Crystal Run Healthcare, he served as chief resident, clinical director of the largest internal medicine clinic in the U.S. Department of Defense, and chairman of general internal medicine and assistant internal medicine program director at Wilford Hall Medical Center. He was assistant professor of internal medicine and clerkship director at the F. Edward Herbert School of Medicine, Uniformed Services University of the Health Sciences in Bethesda, MD.  Spencer has served as the chairman of the Quality and Clinical Committee of THINC, as well as the chairman of the Quality Committee of the New York e-Health Collaborative.  He is currently the chairman of staff at Orange Regional Medical Center in Orange County, NY.