Dr. John Allen is a General Physician,Gastroenterologist and Internal …read moreMedicine in Ann Arbor 48109, Ann Arbor and has an experience of 46 years in these fields. Dr. John Allen practices at Von Voigtlander Womens Hospital in Ann Arbor 48109, Ann Arbor,University Of Michigan Health System in Ann Arbor 48109, Ann Arbor and Gastroenterology And Hepatology At Taubman Center in Ann Arbor 48109, Ann Arbor.
Some of the services provided by the doctor are: Gastrointestinal Hemorrhage,Diverticulitis,Benign Polyps of the Colon,Irritable Bowel Syndrome (IBS) and celiac disease etc.read less