William J. Klish is a Professor Emeritus of Pediatrics, Gastroenterology, Hepatology and Nutrition at Baylor College of Medicine.[1] Klish was educated at the University of Wisconsin–Eau Claire and the University of Wisconsin–Madison.[2] Klish is a past president of the North American Society for Pediatric Gastroenterology and Nutrition. He currently directs the obesity center at the Texas Children's Hospital that he developed.[2] Klish is credited with having helped develop pediatric gastroenterology as a field, and he has won numerous awards for his work.[3]