Our gastrointestinal team includes preeminent experts in the study, diagnosis and treatment of small intestine cancer.

To make an appointment, please call The James Line at 614-293-5066 or 800-293-5066. The James Line is a free, confidential telephone service staffed by oncology nurses to provide callers with cancer information and physician referrals. The James Line is available weekdays from 8 a.m. to 4:30 p.m.

Gastroenterology

Darwin Conwell, MD

Named to the Castle Connolly list of America’s “Top Doctors” for 2017. Read More

Jeffery Groce, MD

I’m a gastroenterologist specializing in patients with pancreatic, biliary and other digestive system diseases. Read More

Samer El-Dika, MD

Director of Endoscopic Quality and Outcomes Skilled in advanced therapeutic endoscopy Special interest in pancreatic and biliary disorders . Read More

Somashekar Krishna, MBBS, MPH

Advanced endoscopy training at MD Anderson Cancer Center, 2012 Director of Clinical Research, Gastroenterology, Hepatology and Nutrition Department, 2013. Read More

Jon Walker, MD

Rated in the top 10 percent of physicians in the nation for patient satisfaction, 2014, 2015, 2016. Read More

Surgical Oncology

Sherif Abdel-Misih, MD

Rated in the top 10 percent of physicians in the nation for patient satisfaction, 2016 Named to the Castle Connolly list of America’s “Top Doctors” for 2017. Read More

Carl Schmidt, MD

Rated in the top 10 percent of physicians in the nation for patient satisfaction, 2014, 2016 Named to the Castle Connolly list of America’s “Top Doctors” for 2017. Read More

Mary Dillhoff, MD

I’m a surgical oncologist with a specialty in diagnosing and treating patients with tumors of the liver, bile duct, pancreas and stomach. Read More

Timothy Pawlik, MD, MPH, PhD

I’m a surgical oncologist with a focus on treating patients with liver, gallbladder, pancreatic and neuroendocrine tumors. Read More

Colorectal Surgery

Mark Arnold, MD

Named to the Castle Connolly list of America’s “Top Doctors” for 2017. Read More

William Cirocco, MD

First recipient American Society of Colon and Rectal Surgeons (ASCRS) Victor W. Fazio, MB, MS Award for Editorial Excellence, 2007 Associate Editor, Diseases of the Colon and Rectum, 2003-present Program Director, Colon & Rectal Surgery Residency Examination Committee American Board of Colon and Rectal Surgeons, 2010-present Named to the Castle Connolly list of America’s “Top Doctors” for 2017. Read More

Alan Harzman, MD

Department of Surgery teaching awards from students and residents Membership in national surgical and medical education groups Rated in the top 10 percent of physicians in the nation for patient satisfaction, 2016 Named to the Castle Connolly list of America’s “Top Doctors” for 2017. Read More

Syed Husain, MBBS

Faculty Teaching Award 2012 Served on expert panel on colonic emergencies at American College of Surgeons Annual Meeting 2010 Mentor for Roessler Student Scholarship Grant 2010. Read More

Radiation Oncology

Evan Wuthrick, MD

I’m a radiation oncologist focusing on gastrointestinal and skin cancers. Read More

Terence Williams, MD, PhD

I am a radiation oncologist who specializes on treating patients with thoracic and gastrointestinal cancers (with a particular emphasis on non-small cell lung cancer, pancreatic cancer, and hepatobiliary malignancies). Read More

General Surgery

E. Christopher Ellison, MD

Rated in the top 10 percent of physicians in the nation for patient satisfaction, 2014, 2015 Zollinger’s Atlas of Surgical Operations Former Chair, American Board of Surgery Past Secretary, American Surgical Association Chair Advisory Council for General Surgery, American College of Surgeons. Read More