Elizabeth Stalder, CNP

Benjamin D. McCallister Jr., MD, has been practicing in the area for nearly 25 years. His clinical interests include cardiac imaging, coronary artery disease and valve disease. Dr. McCallister also has additional training in adult comprehensive echocardiography, cardiovascular computed tomography and nuclear cardiology. He is a clinical instructor at the University of Michigan, as well as an active member on numerous accreditation committees.

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.