Benjamin D. McCallister Jr., MD

Chinmaya S. Shelgikar, MD, FACS, has clinical interests in endovascular treatment of abdominal aortic aneurysms, and lower extremity, renal and visceral occlusive disease. He is a faculty member of the Trinity Health Ann Arbor Hospital general surgery residency program.

Melissa I. Chang, MD, is board-certified in general surgery, and colon and rectal surgery. Dr. Chang has clinical interests in minimally invasive laparoscopic and robotic approaches for colon and rectal cancer, benign diseases such as inflammatory bowel disease, diverticulitis, and pelvic floor disorders. Dr. Chang also specializes in the workup and treatment of fecal incontinence, diarrhea and anorectal disease including abscesses, fistulas and hemorrhoids.

Trinity Health IHA Medical Group, Cardiovascular & Thoracic Surgery - Ann Arbor is located at the Michigan Heart and Vascular Institute in Ypsilanti. Our surgeons are highly trained and board-certified in thoracic surgery, with several doctors receiving "Top Docs" honors by Hour Detroit Magazine.