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Colon & Rectal Surgery Fellowship, Royal Oak

Faculty

Meet our core clinical faculty 


All our Beaumont doctors are board certified by the American Board of Colon and Rectal Surgery.

 

 

Adewunmi Adeyemo, MD
Surgeon

Dr. Adeyemo obtained his undergraduate degree from Chicago State University and he attended medical school at Indiana University School of Medicine where he graduated in 2009. He trained in both general surgery and colorectal surgery at William Beaumont Hospital, where he is currently an assistant professor of surgery. He also serves as the section chief of general surgery at Beaumont Dearborn.


Donald Barkel, MD
Surgeon

Dr. Barkel received a BS degree from the University of Michigan in 1976 and his medical degree from Michigan State University in 1980. He trained in general surgery at William Beaumont Hospital and completed a two year fellowship in colon and rectal surgery at the Mayo Clinic in 1987. He then returned to Beaumont where he is currently an Associate Professor of surgery at OUWB School of Medicine. Dr. Barkel served as the program director for the Beaumont colon and rectal surgery fellowship from 1998 to 2018. He previously served on the Resident Committee within the American Society of Colon and Rectal Surgery and he was president of the Michigan Society of Colon and Rectal Surgery in 2004. He is currently the chairman of the Surgical Quality and Assessment Committee at Beaumont, as well as the Medical Director of the Endoscopy Department.


John Bauman

John Bauman, MD
Surgeon

Dr. Bauman grew up in the St. Louis area and attended the University of Tulsa where he graduated magna cum laude with a degree in biology. He obtained his medical degree from Southern Illinois University in 2014 and remained there to complete his general surgery training. He joined the department of colorectal surgery at William Beaumont Hospital following completion of his fellowship training. 


Ganesh Deshmukh, MD
Surgeon

Dr. Deshmukh received his undergraduate degree in 1977 from St. Xavier’s College and graduated from Seth GS Medical College in 1982. He trained in general surgery at Bronx-Lebanon Hospital Center and completed his fellowship in colon and rectal surgery at William Beaumont Hospital in 1994. He was among the first colorectal surgeons in southeast Michigan to perform robotic surgery and he specializes in the surgical care of complex anal fistulas and pediatric IBD patients. 


Claire Peeples, MD
Surgeon 

Dr. Peeples attended Valparaiso University in Indiana where she received a Bachelor of Science in 2003. She then worked with the Lutheran Volunteer Corps in a free medical clinic in downtown Milwaukee before going on to receive her medical degree from Loyola Stritch School of Medicine in 2008. She completed general surgery residency at William Beaumont Hospital in 2013, and went on to train in colon and rectal surgery at the Cleveland Clinic Florida program in 2014. She is currently an assistant professor of surgery at OUWB School of Medicine and serves on the Continuing Medical Education committee for the American Society of Colon and Rectal Surgeons. She is also a delegate for the Michigan Society of Colon and Rectal Surgery. 


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Stephen Priest, MD
Surgeon

Dr. Priest received his undergraduate degree from Washington and Lee University. He obtained his medical degree at the University of Gaudalajara, Mexico and completed his general surgery residency at York Hospital in York, PA in 1986. He then trained in colon and rectal surgery at William Beaumont Hospital and subsequently joined the Beaumont faculty. He is currently an assistant professor of surgery at OUWB School of Medicine.


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Jason Shellnut, MD
Surgeon

Dr. Shellnut completed his undergraduate education at Michigan State University in 1999 and attended medical school at the University of Iowa where he graduated in 2003. While at Iowa, he was awarded the department of surgery medical student of the year. He trained in general surgery at Iowa Methodist Hospital and completed his colon and rectal fellowship training at William Beaumont Hospital in 2009. He is currently an assistant professor of surgery at OUWB School of Medicine.


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Harry Wasvary, MD
Surgeon

Dr. Wasvary grew up in southeast Michigan and received a bachelor of science from Michigan State University in 1988. He received his medical degree from Wayne State University School of Medicine in 1992 and completed his general surgery training at William Beaumont Hospital in 1998. He stayed at Beaumont for his colon and rectal surgery fellowship the following year and has been a member of the faculty since 2000. Dr. Wasvary is currently an associate professor of surgery at the Oakland University William Beaumont School of Medicine. He is chief of the department of colon and rectal surgery at Beaumont Royal Oak and also the director of the Multidisciplinary Colorectal Tumor Clinic. 


Matthew Ziegler, MD
Program Director

Dr. Ziegler received a BA in history at Washington University in St. Louis in 2000. He obtained his medical degree from the University of Cincinnati College of Medicine and was elected to the Alpha Omega Alpha Medical Honor Society. He then completed his general surgery training at Indiana University School of Medicine in 2010, followed by a fellowship in colon and rectal surgery at William Beaumont Hospital. He joined the colorectal surgery faculty at Indiana University for three years before returning to William Beaumont Hospital in 2014 where he is currently an assistant professor of surgery. Dr. Ziegler is the program director for the colon and rectal surgery fellowship at Beaumont, and he serves as the hospital’s surgeon champion for the ERAS program and the Michigan Surgical Quality Collaborative. He is currently the vice president of the Michigan Society of Colon and Rectal Surgery, and he has served on both the CREST and History committees for the American Society of Colon and Rectal Surgeons.

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