Zhang, Xiaocen, M.D.
Gastroenterology

Tufts Medicine

800 Washington St
Boston MA 02111
Phone: 617-636-5829
Fax: 617-636-1480
Upper endoscopy, colonoscopy, colon polyp removal, esophageal varices, intestinal bleeding, hereditary colon cancer syndrome, reflux disease, irritable bowel syndrome, diarrhea, constipation, trouble