John C. Eggenberger, MD, FASCRS, FACS is board-certified in general and colon & rectal surgery. Dr. Eggenberger has clinical interests in colon and rectal cancer, complex anorectal disease, endoscopy, inflammatory bowel disease, and complicated diverticular disease. Dr. Eggenberger is the chair of surgery at Trinity Health Ann Arbor Hospital and has practiced in southeastern Michigan for more than 25 years. He serves as clinical assistant professor of surgery at the University of Toledo and Michigan State University College of Osteopathic Medicine. Dr. Eggenberger is medical director at Trinity Health IHA Medical Group, Colon & Rectal Surgery - Ann Arbor Campus.