Jonathan A. Waitman, M.D. is board certified in Internal Medicine and Clinical Nutrition. He works closely with Dr. Louis Aronne, Director of Center for Weight Management and Metabolic Clinical Research. He is the course director for the nutrition curriculum and Weill Cornell Medical College. He is also the Medical Director for Specialized Nutrition Support New York Presbyterian Hospital, Weill-Cornell Medical Center.

He attended Boston University, where he received his B.A. in Psychology. He then attended the Mount Sinai School of Medicine where he received his MD. He then completed a 3-year residency in Internal Medicine at Montefiore Medical Center of the Albert Einstein College of Medicine, Bronx, NY. He was asked to, and accepted, the position of Chief medical resident in the department of internal medicine from 2001-2002. Following completion of his training in Internal Medicine he then went to Memorial Sloan Kettering Cancer Center where he completed a fellowship in clinical nutrition. He has co-authored numerous articles on the subject of obesity.