About Me

I am a medical oncologist who specializes in the treatment of genitourinary tumors, particularly testicular cancer (a germ-cell tumor). I am part of a team of expert, compassionate physicians who work together to provide multidisciplinary care to patients with genitourinary cancers. Through my research I have helped identify more effective and less toxic treatments for testicular cancer, a marker chromosome for germ-cell tumors that allows more specific treatment for this disease, and have led studies that may help us better understand why these tumors spread and fail to respond to treatment.

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I served as Chair of the Department of Medicine at Memorial Sloan Kettering from 1997 to 2015. In this role, I oversaw a department of leaders in the field of novel cancer treatment development. Some of these therapies target the specific defects in cancer cells that distinguish them from normal cells while theoretically sparing the healthy cells from attack. For example, our investigators are testing the effectiveness of novel small molecules, antibodies, and vaccines in patients with breast cancer, prostate cancer, melanoma, and many other cancers. Our goal is to find treatments that are specific enough to attack the machinery that allows a cell to grow and divide. We are evaluating many of these types of drugs in clinical trials, both alone and with other drugs, and in treatments that integrate radiation therapy or surgery.

I speak frequently to lay and professional groups about the progress that clinical and laboratory researchers are making in cancer treatment and research. Through these forums the public and other cancer professionals have an opportunity to learn more about the latest advances in treatment and research.

  • Clinical Expertise: General Medical Oncology; Germ Cell and Other Genitourinary Tumors; Head and Neck Cancers
  • Languages Spoken: English
  • Education: MD, Creighton University School of Medicine
  • Residencies: Internal Medicine - Memorial Sloan Kettering Cancer Center
  • Fellowships: Medical Oncology - University of Minnesota
  • Board Certifications: Internal Medicine; Medical Oncology

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Call 646-497-9068


Visit PubMed for a full listing of George J. Bosl’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

As home to one of the world’s top cancer research centers, Memorial Sloan Kettering is typically involved in more than 900 clinical trials at a given time. Currently, clinical trials focused on the conditions I treat are enrolling new patients. If you’re interested in joining a clinical trial, click to learn about the trial’s purpose, eligibility criteria, and how to get more information.

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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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