Geoffrey Y. Ku, MD

About Me

I am a medical oncologist who specializes in the treatment of malignancies of the gastrointestinal tract, including esophageal, stomach, colorectal, and pancreatic cancers. My research focuses on the development of new treatments for patients with esophageal and gastric cancers. I am particularly interested in exploring the combination of chemotherapy and radiation to treat cancers of the esophagus. I am also investigating the role that the immune system plays in controlling cancers of the esophagus and stomach to determine if we can harness the immune system to attack these cancers.

In addition to my work at Memorial Sloan Kettering, I am a member of the Noncolorectal Gastrointestinal Cancer Track for the Scientific Program Committee of the American Society of Clinical Oncology. I am privileged to serve as the Track Leader for 2015–2016.

  • Clinical Expertise: Gastrointestinal Malignancies; New Chemotherapies; Esophageal and Gastric Cancers
  • Languages Spoken: English
  • Education: MD, University of Pennsylvania
  • Residencies: Internal Medicine - New York Presbyterian/Weill Cornell Medical Center
  • Fellowships: Medical Oncology - Memorial Sloan Kettering Cancer Center
  • Board Certifications: Internal Medicine; Medical Oncology


Visit PubMed for a full listing of Geoffrey Y. Ku’s journal articles

Pubmed is an online index of biomedical articles maintained by the U.S. National Library of Medicine and the National Institutes of Health.

Clinical Trials

Research is integral to our mission at Memorial Sloan Kettering, and clinical trials help us discover better forms of patient care and treatment. For you, this could mean access to a new therapy or therapy combination. Click to see a list of the trials I’m currently leading.


Most major health insurers offer plans that include MSK as one of their in-network providers. If MSK is in-network, it means all our doctors are too. Medicaid and New York State Medicare also provide benefits for care at MSK.

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