Memorial Sloan Kettering pathologist Maly Fenelus

Maly Fenelus, MD, MPH

Areas of Expertise

My Specialties

  • Hematology
  • Clinical chemistry

Get to Know Me

I am a physician who specializes in performing and interpreting laboratory tests with expertise in bleeding and clotting disorders. I collaborate with healthcare professionals to provide diagnostic and management plans that are tailored to each patient. This work requires interpretation of laboratory values and is critical for diagnosing, guiding treatment decisions, and monitoring therapeutic outcomes.

As Medical Director of the clinical laboratory at MSK Nassau, I help bring the quality of MSK laboratory medicine to Long Island. Alongside my clinical laboratory colleagues, I ensure laboratory tests are accurate and provide meaningful information for patients and clinicians. Additionally, I have a special interest in developing clinical decision-making tools to facilitate diagnosing and monitoring our patients.

What I Do at MSK

I'm a pathologist, which is a doctor who uses a microscope to make a diagnosis from cell and tissue samples. I analyze these samples to learn the cause and effects of a health issue.

  • Director, Clinical Hemostasis Laboratory
  • Director, MSK Nassau Clinical Laboratory
Areas of Expertise

My Specialties

  • Hematology
  • Clinical chemistry
Education & Honors

Education

  • MD, SUNY Downstate College of Medicine

Residencies

  • Clinical and Anatomic Pathology, Northwell Health

Fellowships

  • Laboratory Medicine, Memorial Sloan Kettering

Board Certifications

  • Clinical and Anatomic Pathology

Insurance Information

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If you have questions about insurance, call us at 646-497-9176.

Contact and Location

Office Phone

Colleagues

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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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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Disclosures

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.

Maly Fenelus 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 a complement to other publicly reported data and 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, 2023 through disclosure submission in spring 2024). 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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