Michael A. Marchetti, MD

About Me

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.

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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.

  • Clinical Expertise: Melanoma; Atypical/Dysplastic Nevi; Congenital Nevi; Skin Cancer
  • Languages Spoken: English
  • Education: MD, Johns Hopkins School of Medicine
  • Residencies: Dermatology - University of Virginia School of Medicine
  • Fellowships: Dermatology - Memorial Sloan Kettering Cancer Center
  • Board Certifications: Dermatology

See My Colleagues


Visit PubMed for a full listing of Michael A. Marchetti’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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