Rekha Parameswaran, MD

About Me

I am a board-certified hematologist and oncologist, and specialize in caring for cancer patients with disorders of the coagulation system. My expertise is in the evaluation and management of bleeding disorders or problems associated with abnormal clotting, and I work closely with the highly skilled surgeons at Memorial Sloan Kettering to ensure that patients with these disorders who need to undergo surgery do so safely without any complications.

Patients with cancer may develop abnormal blood clots. I work closely with the medical oncologists in all specialties to ensure that patients are treated safely and appropriately for blood clots while receiving cancer chemotherapy. Chemotherapy can often lower the blood counts such as white cells, red cells and platelets. I also specialize in the evaluation and treatment of abnormalities in the blood counts to allow patients to proceed with chemotherapy with mimimal side effects related to low counts.

I am currently the chair of the hemostasis study group of the Multinational Association of Supportive Care in Cancer. My research interests include studying the optimal treatment and duration of treatment of cancer associated thrombosis.  I enjoy teaching and mentoring the next generation of physicians  and was honored to receive the 2010-2011 Hematology Attending Teaching Award, selected by fellows from Memorial Sloan Kettering’s Hematology/Oncology Fellowship program.

  • Clinical Expertise: Hematology; Disorders of Hemostasis and Thrombosis
  • Awards and Honors: Castle Connolly: New York Magazine Top Doctors (2018)
  • Languages Spoken: English
  • Education: MD, Byramjee Jeejeebhoy Medical College
  • Residencies: Internal Medicine - Rush-Presbyterian St. Luke's Medical Center/Westlake Hospital
  • Fellowships: Hematology/Medical Oncology - Indiana University
  • Board Certifications: Internal Medicine; Hematology; Medical Oncology

See My Colleagues


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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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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