William Orr, MD, FACC

William Orr, MD, FACC

Dr. Orr is a pediatric cardiologist at Washington University in St. Louis Mo.  He is the director of the pediatric cardiology exercise physiology lab and cardiopulmonary exercise testing.  He is actively leading and developing efforts to create a pediatric cardiac fitness program at St. Louis Children’s Hospital. His current research is centered around exercise physiology and the value of exercise testing among the pediatric population as well as introducing new technology into exercise testing.