About Me

I am a hematologist with a special expertise in vascular medicine. My main research interests within that field are venous thromboembolic disease and new anticoagulants. I have published a few journal articles on those topics, and in the future I will focus my efforts on the study of cancer-associated thrombosis. My clinical practice encompasses the whole spectrum of non-malignant blood conditions, including bleeding disorders and anemias. Lastly, I am involved in teaching medical students, residents, and fellows.

Read more
  • Clinical Expertise: Vascular Medicine and New Anticoagulants
  • Languages Spoken: English; French; Spanish
  • Education: MD, Faculté de Médecine de l'Université Laval (Quebec City, Canada); MPH, Harvard School of Public Health
  • Residencies: Université Laval Hospital Network
  • Fellowships: NewYork-Presbyterian Hospital/Columbia University Medical Center; Yale-New Haven Hospital
  • Board Certifications: Blood Banking/Transfusion Medicine; Hematology

New Patient Appointments

Making an appointment

Call 800-525-2225

See My Colleagues


Visit PubMed for a full listing of Simon Mantha’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.

Learn more


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.

Learn more