John Allen, MD

Dr. John Irvin Allen, MD, MBA, is a highly experienced gastroenterologist with over 48 years in practice, specializing in general gastroenterology at the University of Michigan Health System in Ann Arbor, MI. He treats a broad spectrum of digestive disorders, with a particular emphasis on colon cancer prevention and high-value care delivery in gastrointestinal health. His clinical work is centered at the Gastroenterology Clinic in the Taubman Center, where he manages conditions such as color