He was the hand-picked protege of legendary heart surgeon Dr. Pierre Grondin, one of the first to perform a heart transplant and a pioneer in the development of open-heart surgery. Board certified in three specialties (internal medicine, anesthesiology, family medicine), Dr. Di Pietro is the founder of a state-of-the-art clinic in Miami, Florida, specializing in internal medicine, weight loss and the treatment and prevention of cardiovascular diseases.