Dr. Andrew Tan Chan, MD

Dr. Andrew Chan is a gastroenterologist who graduated from Harvard Medical School and has practiced for 29 years. His expertise centers on digestive system disorders, with particular focus on conditions affecting the colon and lower gastrointestinal tract. Dr. Chan speaks English and brings nearly three decades of clinical experience to his practice.

Dr. Chan maintains affiliations with Massachusetts General Hospital, Merrimack Health Lawrence Hospital, and Merrimack Health Haverhill Hospital, with practice locations in Boston, Lawrence, and Haverhill, Massachusetts. He specializes in treating colon polyps, hemorrhoids, and diverticular disease. His procedural expertise includes performing colonoscopies and lower gastrointestinal endoscopy procedures with sedation for patient comfort. Patients rate Dr. Chan 5.0 out of 5 stars on average.