Dr. Halloran earned his medical degree from the University of Minnesota Medical School in Minneapolis. Dr. Halloran completed his general surgery residency and cardiothoracic surgery fellowship at the University of Rochester Strong Memorial Hospital in Rochester, New York. Dr. Halloran has been part of the Elkhart General Hospital Medical Staff since 1996. He is board-certified in thoracic and cardiac surgery. He is a member of the Society of Thoracic Surgeons, the American College of Cardiology, the American Association of Thoracic Surgery, the American College of Chest Physicians and the American Medical Association. He is also a fellow of the American College of Surgeons and has authored several scientific papers and contributed to several chapters in surgical texts. Active in the Michiana community, Dr. Halloran founded HeartReach Michiana in 2004, a nonprofit organization that helps those affected by heart disease, through education, financial support and direct assistance.