Memorial Sloan Kettering doctors, including oncologists, surgeons, radiologists, pathologists, psychiatrists, and more, treat every cancer type and are part of your care team at MSK. To learn about our doctors, find a specialist near you, or make an appointment, please see our listings below. You can search by disease, location, department, treatment procedure, and language spoken.
Gastroenterologist
Mark A. Schattner, MD, FASGE, AGAF
Chief, Gastroenterology, Hepatology and Nutrition Service
Gastrointestinal Medical Oncologist
Deb Schrag, MD, MPH
Chair, Department of Medicine, George J. Bosl Chair at Memorial Sloan Kettering Cancer Center
Gastrointestinal Medical Oncologist
David Paul Kelsen, MD
Edward S. Gordon Chair in Medical Oncology
Gastrointestinal Medical Oncologist & Early Drug Development Specialist
Danny N. Khalil, MD, PhD
Assistant Attending Physician