As chief of the University of Chicago Hospital's Surgical Obesity Program, Dr. John Alverdy oversees one of the most active weight loss programs in the area. He is a nationally recognized surgeon and has a vast experience in weight loss surgery--both traditional and laparoscopic. Considered a surgical innovator, Dr. Alverdy was the first surgeon in the area to perform gastric bypass surgery and duodenal switch surgery using minimally invasive laparoscope techniques. Dr. Alverdy is also an expert in other abdominal surgeries, including the surgical treatment of gastroesophageal reflux, hernias, colorectal diseases, and biliary tract disease.