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.


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

Rishi Jain, MD

I’m a medical oncologist specializing in cancers of the gastrointestinal tract. 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

Jeffrey VanDeusen, MD, PhD

Rated in the top 10 percent of physicians in the nation for patient satisfaction, 2017. 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

Jordan Cloyd, MD

I am an assistant professor in the Division of Surgical Oncology at Ohio State, where I specialize in treating patients with gastrointestinal, hepatopancreatobiliary, neuroendocrine and peritoneal surface cancers. I have expertise in complex liver and pancreas surgery, and I also employ such innovative approaches as neoadjuvant (presurgical) therapy or hyperthermic intraperitoneal chemotherapy (HIPEC)—a heated chemo treatment targeted to the abdomen during surgery—to achieve optimum outcomes for patients with advanced or metastatic disease. Read More

Mary Dillhoff, MD

Rated in the top 10 percent of physicians in the nation for patient satisfaction, 2016, 2017. Read More

John Harrison Howard, MD

Rated in the top 10 percent of physicians in the nation for patient satisfaction, 2014, 2016, 2017. Read More

Andrei Manilchuk, MD

Department of Surgery Faculty Teaching Award 2010 Assistant Professor of Clinical Surgery, Ohio State Certificate of Excellence for Outstanding Achievement in Patient Service, Ohio State Rated in the top 10 percent of physicians in the nation for patient satisfaction, 2016. Read More

Kyle Perry, MD

Co-Director, Minimally Invasive and Bariatric Surgery Fellowship Associate Director for Research, Center for Minimally Invasive Surgery Fellow of the American College of Surgeons, 2011. 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

Gastroenterology

Kristin Dittmar, MD

I am the Section Head of Body Interventional Radiology and an Associate Professor in the Department of Radiology. Read More

Hooman Khabiri, MD

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