Pictured: Michael Marchetti

Michael A. Marchetti, MD


Clinical Expertise

Melanoma; Atypical/Dysplastic Nevi; Congenital Nevi; Skin Cancer

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Accepted Insurance Providers

Dr. Marchetti 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, Johns Hopkins University School of Medicine


University of Virginia School of Medicine


Memorial Sloan Kettering Cancer Center

Board Certifications


I am a board-certified dermatologist with advanced training and expertise in the diagnosis and management of skin cancer, particularly melanoma. To most effectively manage my patients at high risk for skin cancer, I use total body photography, dermoscopy, sequential digital dermoscopic imaging, and confocal laser microscopy. These imaging techniques allow me to noninvasively diagnose skin cancers as early as possible, while also minimizing the unnecessary removal of benign skin lesions. I work closely with a multidisciplinary team of dermatologists, surgeons, medical oncologists, radiation oncologists, pathologists, physician assistants, nurses, and patient advocates to deliver the best possible care for my patients and their families. I am deeply committed to compassionate patient communication and to fostering an environment where patients can make informed healthcare decisions.

My research aim is to reduce melanoma-related deaths. Currently, I am focused on using novel skin-imaging techniques to improve melanoma risk stratification, melanoma diagnosis, and our understanding of the unique biologic pathways through which nevi (moles) and melanoma develop. This research includes an ongoing study of the evolution of moles in children and adolescents as well as an international collaboration that aims to create a public skin lesion image archive to support education, clinical decision making, and computerized image analysis efforts.

I am also firmly committed to education and community service. I participate in Memorial Sloan Kettering’s annual free skin cancer screening program and frequently lecture to trainees. I am an invited speaker at national dermatology meetings, as well as an author of numerous peer-reviewed journal articles and book chapters.


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. Marchetti’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.