Mark A. Williams, Ph.D.,   Professor of Medicine,   Director of Cardiovascular Disease Prevention and Rehabilitation Program       Dr. Williams received his professional training at California State University (Fullerton) and Texas A&M University, specializing in exercise physiology, cardiac rehabilitation and adult fitness. He is a Fellow of the American College of Sports Medicine (ACSM) and a Fellow and past President of the American Association of Cardiovascular and Pulmonary Rehabilitation (AACVPR). He is also certified as an ACSM Preventive/Rehabilitative Exercise Program Director.