Dr. Haber serves as Chief of Endoscopy and Director of Advanced Therapeutics and Innovation in the Division of Gastroenterology at NYU Langone Medical Center. Dr. Haber is considered a leader in advanced endoscopy and one of the world’s foremost experts on the treatment of digestive diseases. Gregory Haber, M.D. is board certified in Gastroenterology and Internal Medicine. He received his medical degree from the University of Toronto, where he also completed his residency in Internal Medicine and his fellowship in Gastroenterology.