Arnold J. Markowitz, MD

About Me

I am a gastroenterologist with expertise in colon cancer screening and prevention. I have particular clinical and research interests in the care of people with hereditary colon cancer syndromes, such as Lynch syndrome and familial adenomatous polyposis (FAP). I have been at Memorial Sloan Kettering since 1994, and serve as the Director of the Gastroenterology Fellowship Training Program.


  • Clinical Expertise: Stomach Cancer; Colon Cancer; Hereditary Colon Cancer Syndromes; Esophageal Cancer; Rectal Cancer; GI Endoscopy; Endoscopic Ultrasound; Endoscopic Gastrostomy and Jejunostomy
  • Awards and Honors: Castle Connolly: New York Magazine Top Doctors (2014-2018)
  • Languages Spoken: English
  • Education: MD, New York University School of Medicine
  • Residencies: New York University Medical Center
  • Fellowships: University of Michigan Medical Center; University of Pennsylvania Medical Center
  • Board Certifications: Gastroenterology


Visit PubMed for a full listing of Arnold J. Markowitz’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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