About Me

I am a board-certified medical oncologist with extensive experience treating patients who have thoracic malignancies including non-small cell lung cancer, mesothelioma, small cell lung cancer, and thymoma.

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I see patients at Memorial Sloan Kettering’s facility in Commack, Long Island, and I work closely with the lung cancer specialists at the Center’s main campus in Manhattan, including surgeons, radiation oncologists, pathologists, and radiologists. Through these collaborations I am bringing state-of-the-art treatment to local patients with thoracic tumors.

I am an active member of Memorial Sloan Kettering’s thoracic tumor board, where a multidisciplinary team reviews difficult cases and discusses the best ways to manage the care of these patients. I also participate in many of the Center’s clinical trials and some national trials of the latest treatments for lung cancer. I can readily refer patients to my colleagues at Memorial Sloan Kettering’s main campus for any treatments not available at Commack.

I am interested in palliative care of cancer patients and serve on the Center’s Palliative Care Committee. I work closely with the nursing staff, social workers, and other physicians at Commack to achieve optimal symptom control and communication with patients and families throughout the course of their illnesses.

  • Clinical Expertise: Lung Cancer; General Medical Oncology
  • Languages Spoken: English
  • Education: MD, Tufts University
  • Residencies: Internal Medicine - Veterans' Affairs Medical Center
  • Fellowships: Hematology - Veterans' Affairs Medical Center; Medical Oncology - Memorial Sloan Kettering Cancer Center
  • Board Certifications: Internal Medicine; Medical Oncology; Hematology

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Visit PubMed for a full listing of John J. Fiore’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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