Mark Greathouse, MD, FACC, is a cardiologist with AHN Cardiovascular Institute, specializing in diagnosing and treating a wide array of heart conditions, including rare and complex diseases. He provides patient-centered care tailored to meet individual needs. Dr. Greathouse earned his Doctor of Medicine degree from West Virginia University School of Medicine in Morgantown, West Virginia, following a Bachelor of Arts in Chemistry from the same university. He completed his internal medicine internship and residency at UPMC Mercy Hospital in Pittsburgh, Pennsylvania. He further specialized in interventional cardiology with a fellowship at Allegheny General Hospital in Pittsburgh, Pennsylvania. Dr. Greathouse is board certified in Cardiovascular Disease, Internal Medicine, and Cardiac CT. He welcomes patients ages 18 and older.