Southeast Michigan

Faculty

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

Adewunmi Adeyemo, MD
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 Corewell Health William Beaumont University Hospital, where he is currently an assistant professor of surgery. He also serves as the section chief of general surgery at Corewell Health Dearborn.

John Bauman, MD
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 Corewell Health William Beaumont University Hospital following completion of his fellowship training. 

Ganesh Deshmukh, MD
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 Corewell Health William Beaumont University 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. 

Bradley Krasnick, MD
Bradley Krasnick, MD

Surgeon

Dr. Krasnick grew up in the Detroit area and received his undergraduate degree at the University of Michigan. He went on to attend medical school at Wayne State University School of Medicine, followed by his general surgery training at Washington University in St. Louis. He went on to complete his colon and rectal surgery fellowship training at Ohio State University. He joined the department of colorectal surgery at Corewell Health William Beaumont University Hospital following completion of his fellowship training.

Claire Peeples, MD
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 Corewell Health William Beaumont University 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. 

Vishnu Pemmaraju, MD
Vishnu Pemmaraju, MD

Surgeon

Dr. Pemmaraju grew up in the metro Detroit area and attended Michigan State University, where he received a bachelor of science degree. He then went on to obtain his medical degree at The Ohio State College of Medicine. He completed his general surgery training at Indiana University before coming to Corewell Health, where he completed his colorectal surgery fellowship. He is currently on staff at Corewell Health William Beaumont University Hospital.

Jason Shellnut, MD
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 Corewell Health William Beaumont University Hospital in 2009. He is currently an assistant professor of surgery at OUWB School of Medicine.

Harry Wasvary, MD
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 Corewell Health William Beaumont University Hospital in 1998. He stayed at Corewell Health 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 Corewell Health Royal Oak and also the director of the Multidisciplinary Colorectal Tumor Clinic.

Matthew Ziegler, MD
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 Corewell Health William Beaumont University Hospital. He joined the colorectal surgery faculty at Indiana University for three years before returning to Corewell Health William Beaumont University 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 Corewell Health, 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.

Adewunmi Adeyemo, MD
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 Corewell Health William Beaumont University Hospital, where he is currently an assistant professor of surgery. He also serves as the section chief of general surgery at Corewell Health Dearborn.

John Bauman, MD
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 Corewell Health William Beaumont University Hospital following completion of his fellowship training. 

Ganesh Deshmukh, MD
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 Corewell Health William Beaumont University 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. 

Bradley Krasnick, MD
Bradley Krasnick, MD

Surgeon

Dr. Krasnick grew up in the Detroit area and received his undergraduate degree at the University of Michigan. He went on to attend medical school at Wayne State University School of Medicine, followed by his general surgery training at Washington University in St. Louis. He went on to complete his colon and rectal surgery fellowship training at Ohio State University. He joined the department of colorectal surgery at Corewell Health William Beaumont University Hospital following completion of his fellowship training.

Claire Peeples, MD
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 Corewell Health William Beaumont University 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. 

Vishnu Pemmaraju, MD
Vishnu Pemmaraju, MD

Surgeon

Dr. Pemmaraju grew up in the metro Detroit area and attended Michigan State University, where he received a bachelor of science degree. He then went on to obtain his medical degree at The Ohio State College of Medicine. He completed his general surgery training at Indiana University before coming to Corewell Health, where he completed his colorectal surgery fellowship. He is currently on staff at Corewell Health William Beaumont University Hospital.

Jason Shellnut, MD
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 Corewell Health William Beaumont University Hospital in 2009. He is currently an assistant professor of surgery at OUWB School of Medicine.

Harry Wasvary, MD
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 Corewell Health William Beaumont University Hospital in 1998. He stayed at Corewell Health 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 Corewell Health Royal Oak and also the director of the Multidisciplinary Colorectal Tumor Clinic.

Matthew Ziegler, MD
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 Corewell Health William Beaumont University Hospital. He joined the colorectal surgery faculty at Indiana University for three years before returning to Corewell Health William Beaumont University 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 Corewell Health, 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.

Adewunmi Adeyemo, MD
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 Corewell Health William Beaumont University Hospital, where he is currently an assistant professor of surgery. He also serves as the section chief of general surgery at Corewell Health Dearborn.

John Bauman, MD
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 Corewell Health William Beaumont University Hospital following completion of his fellowship training. 

Ganesh Deshmukh, MD
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 Corewell Health William Beaumont University 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. 

Bradley Krasnick, MD
Bradley Krasnick, MD

Surgeon

Dr. Krasnick grew up in the Detroit area and received his undergraduate degree at the University of Michigan. He went on to attend medical school at Wayne State University School of Medicine, followed by his general surgery training at Washington University in St. Louis. He went on to complete his colon and rectal surgery fellowship training at Ohio State University. He joined the department of colorectal surgery at Corewell Health William Beaumont University Hospital following completion of his fellowship training.

Claire Peeples, MD
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 Corewell Health William Beaumont University 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. 

Vishnu Pemmaraju, MD
Vishnu Pemmaraju, MD

Surgeon

Dr. Pemmaraju grew up in the metro Detroit area and attended Michigan State University, where he received a bachelor of science degree. He then went on to obtain his medical degree at The Ohio State College of Medicine. He completed his general surgery training at Indiana University before coming to Corewell Health, where he completed his colorectal surgery fellowship. He is currently on staff at Corewell Health William Beaumont University Hospital.

Jason Shellnut, MD
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 Corewell Health William Beaumont University Hospital in 2009. He is currently an assistant professor of surgery at OUWB School of Medicine.

Harry Wasvary, MD
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 Corewell Health William Beaumont University Hospital in 1998. He stayed at Corewell Health 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 Corewell Health Royal Oak and also the director of the Multidisciplinary Colorectal Tumor Clinic.

Matthew Ziegler, MD
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 Corewell Health William Beaumont University Hospital. He joined the colorectal surgery faculty at Indiana University for three years before returning to Corewell Health William Beaumont University 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 Corewell Health, 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.

Adewunmi Adeyemo, MD
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 Corewell Health William Beaumont University Hospital, where he is currently an assistant professor of surgery. He also serves as the section chief of general surgery at Corewell Health Dearborn.

John Bauman, MD
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 Corewell Health William Beaumont University Hospital following completion of his fellowship training. 

Ganesh Deshmukh, MD
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 Corewell Health William Beaumont University 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. 

Bradley Krasnick, MD
Bradley Krasnick, MD

Surgeon

Dr. Krasnick grew up in the Detroit area and received his undergraduate degree at the University of Michigan. He went on to attend medical school at Wayne State University School of Medicine, followed by his general surgery training at Washington University in St. Louis. He went on to complete his colon and rectal surgery fellowship training at Ohio State University. He joined the department of colorectal surgery at Corewell Health William Beaumont University Hospital following completion of his fellowship training.

Claire Peeples, MD
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 Corewell Health William Beaumont University 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. 

Vishnu Pemmaraju, MD
Vishnu Pemmaraju, MD

Surgeon

Dr. Pemmaraju grew up in the metro Detroit area and attended Michigan State University, where he received a bachelor of science degree. He then went on to obtain his medical degree at The Ohio State College of Medicine. He completed his general surgery training at Indiana University before coming to Corewell Health, where he completed his colorectal surgery fellowship. He is currently on staff at Corewell Health William Beaumont University Hospital.

Jason Shellnut, MD
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 Corewell Health William Beaumont University Hospital in 2009. He is currently an assistant professor of surgery at OUWB School of Medicine.

Harry Wasvary, MD
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 Corewell Health William Beaumont University Hospital in 1998. He stayed at Corewell Health 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 Corewell Health Royal Oak and also the director of the Multidisciplinary Colorectal Tumor Clinic.

Matthew Ziegler, MD
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 Corewell Health William Beaumont University Hospital. He joined the colorectal surgery faculty at Indiana University for three years before returning to Corewell Health William Beaumont University 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 Corewell Health, 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.