Dr. Jason Shellnut


MD, The University of Iowa 2003
BS, Michigan State University 1999, in Chemical Engineering and with Highest Honors

Postgraduate Training

Colorectal Surgery Residency, William Beaumont Hospital Royal Oak, MI, 2008 – 2009
General Surgery Residency, Iowa Methodist Hospital Des Moines, IA, 2003-2008


Board Certified in General Surgery 2008
Board Certified in Colon & Rectal Surgery 2011
Fellow of the American College of Surgeons 2013


State of Michigan 2008-present

Hospital Affiliations

Attending Physician, Department of Colon & Rectal Surgery, William Beaumont Hospital
Royal Oak, MI, 2009-Present
Attending Physician, Department of Colon & Rectal Surgery, William Beaumont Hospital
Grosse Pointe, MI, 2010-Present


Assistant Professor Oakland University, 2013-present

Awards and Honors

University of Iowa Department of Surgery Medical Student of the Year 2003
Throckmorten Society Basic Science Research Presentation, 1st Place 2006

Hobbies and Interests

Acoustic and electric guitar

Publications and Research

Adeyemo A, Bannazadeh M, Riggs T, Shellnut J, Barkel D, Wasvary H. “Does Sedation Type Affect Colonoscopy Perforation Rates?” Dis Colon Rectum. 2014 Jan;57(1):110-4.

Peeples C, Shellnut J, Wasvary H, Riggs T, Sacksner J “Predictive factors affecting survival in stage II colorectal cancer: is lymph node harvesting relevant?” Dis Colon Rectum. 2010 Nov;53(11):1517-23

Shellnut, J.K., Wasvary, H.J., Grodsky, M.B., Boura, J.A., Priest, S.G “Evaluating the age distribution of patients with colorectal cancer: are the United States Preventative Services Task Force guidelines for colorectal cancer screening appropriate?” Dis Colon Rectum. 2010 Jan;53(1):5-8

Howe, J, Shellnut J,Wagner B. “Common Deletion of SMAD4 in Juvenile Polyposis Is a Mutational Hotspot” Am J Hum Genet. 2002 May; 70(5):1357-62

Engaged in 3-year basic science melanoma research project from Fall 2003- Spring 2006. Presented as poster at AACR national meeting in Washington D.C. in 2006 and as PowerPoint presentation at Throckmorten Society Annual Meeting in Des Moines 2006.

Co-author of article “Intussusception: Surgical Perspective”

Presented original research on “Colonoscopic Associated Splenic Injury” at the Michigan Society of Colon and Rectal Surgeon’s Annual meeting, October 2008.

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. 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.