Dr. Cohn is Professor Emeritus in the Department of Medicine at the University of Miami Miller School of Medicine. He is the former Director of the Medical Consultation Service at Jackson Memorial Hospital and Medical Director of the UHealth Preoperative Assessment Center (UPAC) and Medical Consultation Service at the University of Miami Hospital, having relocated to Miami after 30 years at the State University of New York - Downstate Medical Center in Brooklyn. He served as the Chief of the Division of General Internal Medicine and Associate Medical Director for Performance Improvement at Downstate, and the Director of the Preoperative Medical Consultation Clinic and Medical Consultation Service at Kings County Hospital Center. He was responsible for education and supervision of over 1000 senior medical residents in both inpatient and ambulatory care settings, and he has evaluated over 30,000 patients preoperatively. After receiving his medical degree from the University of Monterrey, Dr. Cohn completed his residency in internal medicine at SUNYDownstate Medical Center. He is a Master of the American College of Physicians (ACP), a senior fellow of the Society for Hospital Medicine (SHM), and a board member of the Society for Perioperative Assessment and Quality Improvement (SPAQI). He has given over 400 lectures, authored/edited three books and over 100 book chapters and peer-reviewed manuscripts, and in 2017, he received the Society for Hospital Medicine award for Excellence in Teaching.