Jeffrey S. Unger attended medical school at Boston University School of Medicine in Boston, MA. He completed his Internship and Residency in Internal Medicine at Columbia-Presbyterian Medical Center in New York. Dr. Unger then completed his Fellowship in Gastroenterology at New York University Medical Center in New York. Dr. Unger has written many abstracts and publications in the field of Gastroenterology. From 2000 to the present, he has been an Attending Physician in the Department of Medicine, Division of Gastroenterology at the Robert Wood Johnson @ Somerset, Somerville, NJ. He has served on many committees at Robert Wood Johnson @ Somerset including the Pharmacy and Therapeutics Committee and the Quality control Committee. He was appointed Chief of Gastroenterology at Robert Wood Johnson @ Somerset and served for two terms. Dr. Unger is board certified in both Gastroenterology and Internal Medicine. Dr. Unger has a special interest in liver disease and reflux disease. He also performs endoscopy, colonoscopy, biopsy, polypectomy, variceal banding, endoscopic retrograde cholangiopancreatography, biliary stenting, gallstone extraction, infrared photocoagulation of hemorrhoids, argon plasma coagulation, capsule enteroscopy and various other procedures.