He received his medical degree from Jefferson Medical College in Philadelphia, Pa, and completed his internship, residency and fellowship at Allegheny General Hospital in Pittsburgh, Pa. He is certified by the American Board of Internal Medicine and the American Board of Internal Medicine, Cardiovascular. Dr. Hagerty has been in private practice since 1988 with the Pennsylvania Heart Group, LTD. He has medical staff privileges at Allegheny General Hospital, Clarion Hospital and the Wexford Health + Wellness Pavilion.