Mark E. Tanchel, M.D. is a graduate of Tufts University School of Medicine. He completed his medical residency at Tufts-New England Medical Center. His gastroenterology fellowship was completed at the University of California at San Francisco Medical Center. Dr. Tanchel is board-certified in Gastroenterology. Dr. Tanchel has been selected as a “Top Doctor” by 201 magazine.