John J. Fiore, MD

John J. Fiore, MD

Medical Oncologist

Clinical Expertise

Lung Cancer; General Medical Oncology

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Accepted Insurance Providers

Dr. Fiore accepts the following list of insurance providers. Select your insurance provider to see more details.

Contact and Location

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Find a Convenient Location

Memorial Sloan Kettering has locations throughout New York City, Long Island, New Jersey, and Westchester. These locations offers many services, including screening, chemotherapy, and medical testing.

About Me


MD, Tufts University School of Medicine


Veterans Administration Hospital (Boston)


Memorial Sloan Kettering Cancer Center; Veterans Administration Hospital (Boston)

Board Certifications

Internal Medicine; Medical Oncology; Hematology

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.

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.


Doctors at Memorial Sloan Kettering work as teams, with specialists from all different areas. This allows us to consider all your needs together, and to give you the best possible care.

Clinical Trials

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Find a Clinical Trial for You

Memorial Sloan Kettering's doctors and scientists are constantly developing new treatments for cancer. MSK is typically running hundreds of clinical trials at a given time.

You may be able to participate in a clinical trial even if you are new to MSK. Search our online directory to find trial information and see more about who can participate.

Research and Publications

Publications on PubMed

Visit PubMed for a full listing of Dr. Fiore’s journal articles. Pubmed is an online index of research papers and other articles from the US National Library of Medicine and the National Institutes of Health.