Trinity Health IHA Medical Group, Colon & Rectal Surgery - Oakland Campus specializes in colon and rectal surgical treatments. Our physicians are highly trained and board-certified in their respective fields, with several doctors receiving "Top Docs" honors by Hour Detroit Magazine. Trinity Health IHA Medical Group, Colon & Rectal Surgery's main office is located at the Michigan Heart and Vascular Building on the campus of Trinity Health Ann Arbor. Physicians offer surgery in Ann Arbor, Livonia, Clarkston and Pontiac.