Our gastrointestinal team includes preeminent experts in the study, diagnosis and treatment of stomach 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, 2017. Read More

Medical Oncology

John Hays, MD, PhD

I specialize in treating peritoneal cancers stemming from gastrointestinal and gynecological origins such as ovarian, colorectal cancer and cancers of the appendix and small intestine. Read More

Anne Noonan, MBBCh

I’m a medical oncologist focusing on breast cancer and gastrointestinal malignancies such as esophageal, pancreatic and colorectal cancers, as well as hepatocellular carcinoma. Read More

Sameek Roychowdhury, MD, PhD

As a medical oncologist I specialize in treating patients with advanced prostate and colorectal cancers, including soft tissue sarcoma. Read More

Manisha Shah, MD

I’m a medical oncologist specializing in treating patients with neuroendocrine, thyroid and adrenal cancers as well as paraganglioma/pheochromocytoma and pituitary tumors. Read More

Surgical Oncology

Sherif Abdel-Misih, MD

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

Mary Dillhoff, MD

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