Memorial Sloan Kettering Pathologist Melissa S. Pessin

Melissa S. Pessin, MD, PhD



Chair, Department of Laboratory Medicine

Clinical Expertise

Laboratory Medicine


Contact and Location

Find a Convenient Location

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

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About Me


MD, PhD, Johns Hopkins School of Medicine


NewYork-Presbyterian Hospital/Columbia University Medical Center


The Rockefeller University

Board Certifications

Clinical Pathology; Blood Banking/Transfusion Medicine

As Chair of the Department of Laboratory Medicine, I oversee and ensure the accuracy and quality of all the clinical laboratory testing performed at Memorial Hospital, as well as all of the MSK satellite laboratories. I am board certified in Clinical Pathology/Laboratory Medicine and Blood Banking/Transfusion Medicine, and have directed laboratories and led consultation services in laboratory medicine. My research interests are in new diagnostic test development and appropriate laboratory test utilization. I am recognized as a leader in the automation and efficiency of laboratory operations, and am called on to share my expertise in the evaluation and implementation of new technologies.


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.

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Clinical Trials

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.

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Doctors and faculty members often work with pharmaceutical, device, biotechnology, and life sciences companies, and other organizations outside of MSK, to find safe and effective cancer treatments, to improve patient care, and to educate the health care community.

MSK requires doctors and faculty members to report (“disclose”) the relationships and financial interests they have with external entities. As a commitment to transparency with our community, we make that information available to the public.

Melissa S. Pessin discloses the following relationships and financial interests:

No disclosures meeting criteria for time period

If you’re a patient at MSK and would like more information about your doctor’s external relationships, please talk with your doctor.

The information published here is for a specific annual disclosure period. There may be differences between information on this and other public sites as a result of different reporting periods and/or the various ways relationships and financial interests are categorized by organizations that publish such data.

This page and data include information for a specific MSK annual disclosure period (January 1, 2020 through disclosure submission in spring 2021). This data reflects interests that may or may not still exist. This data is updated annually.

Learn more about MSK’s COI policies here. For questions regarding MSK’s COI-related policies and procedures, email MSK’s Compliance Office at [email protected].

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