Dr. David Marr joined the staff of The Saint John Regional Hospital in 1980. He obtained his medical degree from Dalhousie in 1975. He then completed Internal Medicine and Cardiology training at Dalhousie University. He was certified as a Fellow of the Royal College of Physicians and Surgeons of Canada in Internal Medicine (1979) and in Cardiology (1980). He is also Fellow of The American College of Cardiology. Dr. Marr helped establish the New Brunswick Heart Centre in 1991 and is the former Chief of Internal Medicine and current Medical Director for the Saint John Area of Horizon Health Network.