Oakland Colon and Rectal Associates P.C. is the office of Drs. Donald Barkel, Harry Wasvary, Jason Shellnut, Matthew Ziegler, Claire Peeples, and Stephen Priest. All of our physicians are Board Certified in the specialty of Colon and Rectal Surgery and are on the staff at William Beaumont Hospital-Royal Oak.

We treat diseases of the colon, rectum and anus, both medically and, if needed, surgically. Advanced surgical techniques, including minimally invasive surgery, advanced laproscopic and robotic-colorectal surgery, fecal transplantation, interstem therapy for fecal incontinence, THD procedure for hemorrhoids, are utilized when appropriate. Common anorectal conditions, such as hemorrhoids, can usually be treated in the office setting. Colon cancer screening procedures, such as colonoscopies, are arranged through our office and done at Beaumont Hospital-Royal Oak. If you are over 50 years of age, you should be screened for colon cancer.

Our office hours are Monday-Friday, 9:00 a.m.-5:00 p.m. Please call (248) 541-8554. After hours, physicians are available for emergencies through our answering service. If calling during non-business hours, you will be directed to call our answering service.

Meet Our Doctors and Staff

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. Harry Wasvary

Dr. Wasvary is a board-certified colon and rectal surgeon with over 20 years experience. He is an Associate Professor of Medicine, Chief of Colon-Rectal Surgery at William Beaumont Hospital (Royal Oak), and Director of Beaumont's Multidisciplinary Colorectal Tumor Clinic.

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.

Dr. Stephen Priest

Dr. Priest is board certified in Colon & Rectal surgery. He is an Associate Professor of Surgery at Oakland University and is affiliated with William Beaumont Hospital in Royal Oak.