Hematology
John Leonard, MD
Director, Center for Blood Cancers, Perlmutter Cancer Center; Division Chief, Hematology and Medical Oncology; Senior Advisor, Dean and Chief Clinical Officer for Enterprise Cancer Strategy & Operations
Dr. John P. Leonard is a distinguished hematologist and medical oncologist specializing in the treatment of lymphoma and other hematologic malignancies. As Director of the Center for Blood Cancers at Perlmutter Cancer Center and Division Chief of Hematology and Medical Oncology at NYU Langone, Dr. Leonard provides comprehensive, personalized care to patients with non-Hodgkin's lymphoma, Hodgkin lymphoma, leukemia, and multiple myeloma. His clinical expertise extends to managing complex patients
35+
Years in Practice
Credentials
Board Certifications
- Hematology (American Board of Internal Medicine, 1996)
- Medical Oncology (American Board of Internal Medicine, 1997)
Education & Training
- Fellowship, Hematology & Medical Oncology — New York Presbyterian Hospital/Weill Cornell Medicine (1993–1996)
- Residency, Internal Medicine — New York Presbyterian Hospital/Weill Cornell Medicine (1991–1993)
- M.D. — University of Virginia School of Medicine (1990)
Peer Recognition
- Castle Connolly — Top Doctor
2007-2026 (20 years)
Clinical Focus
Subspecialties
Conditions & Treatments
Practice Details
Hospital Affiliations
- NYU Langone Hospitals
- NewYork-Presbyterian / Weill Cornell Medical Center
- NYU Langone Hospital—Brooklyn
Languages
English, Hungarian
Experience
35+ years in practice