Dr. Harry Wasvary


MD, Wayne State University 1992


General Surgery, William Beaumont Hospital


Colon and Rectal Surgery, William Beaumont Hospital


American Board of Surgery
American Board of Colon and Rectal Surgery


Associate Professor at Oakland University William Beaumont School of Medicine
Chief of Colon-Rectal Surgery at William Beaumont Hospital (Royal Oak)
Director of Beaumont’s Multidisplinary Colorectal Tumor Clinic

Years in Practice


Beaumont Affiliation and Years on Staff

Royal Oak 13 years

Dr. Donald Barkel

Dr. Barkel serves as the Program Director for the Colon and Rectal Surgery Residency at Beaumont Hospital as well as being the Medical Director of Beaumont's Endoscopy Department and chairing the Hospital's Surgical Quality Assessment Committee.

Dr. Jason Shellnut

Dr. Shellnut is a board certified colon and rectal surgeon with over 12 years experience and is affiliated with William Beaumont Hospital, Royal Oak and Grosse Pointe. He is an Associate Professor at Oakland University William Beaumont School of Medicine.

Dr. Matthew Ziegler

Dr. Ziegler practiced as an Assistant Professor of Surgery at Indiana University School of medicine for three years before joining Oakland Colon & Rectal Associates in the fall of 2014. He currently specializes in colon and rectal surgery and provides screening colonoscopies.

Dr. Claire Peeples

Dr. Peeples is joining us after completing her colon and rectal surgery fellowship at Cleveland Clinic (Florida). She is board certified in general surgery and in Colon & Rectal surgery. She is specifically interested in advanced laparoscopic techniques in colon & rectal cancer and surgical management of inflammatory bowel disease and pelvic floor disorders.