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Jacqueline Barrientos, MD

Chief, Hematologic Malignancies Director, Oncology Research Assistant Professor at the Columbia University Division of Hematology/Oncology at Mount Sinai Medical Center Adjunct Professor of Medicine, Zucker School of Medicine at Hofstra/Northwell Adjunct Associate Professor, Feinstein Institutes for Medical Research

Clinical Expertise

  • Chronic Lymphocytic Leukemia (CLL)
  • Non-Hodgkin’s Lymphoma
  • Hodgkin’s Lymphoma
  • Hairy Cell Leukemia (HCL)
  • Clinical Trials


Dr. Jacqueline C. Barrientos is a hematologist-oncologist at Mount Sinai Medical Center where she has been appointed Chief of Hematologic Malignancies and Director of Oncology Research. She is Adjunct Professor of Medicine at the Donald and Barbara Zucker School of Medicine at Hofstra/Northwell in New York.

Dr. Barrientos received her medical degree from the Ponce Health Sciences University where she was the recipient of two Howard Hughes Medical Institute Fellowship Awards for research and was elected to the Alpha Omega Alpha National Medical Honor Society. She completed her internship and residency in internal medicine at the Yale-New Haven Hospital of the Yale School of Medicine, and her fellowship in Hematology/Oncology at NY Presbyterian Hospital/Weill Cornell Medical Center in New York City, where she also served as Chief Fellow. She obtained a Master’s degree in Clinical Investigation at the Weill Cornell Graduate School of Medical Sciences. She is board certified in hematology and medical oncology.

Dr. Barrientos served as Principal Investigator on several clinical trials that lead to the approval of novel therapies that changed the treatment paradigm of CLL and lymphoma. She has co-authored several landmark publications in prestigious medical journals. She has been honored with several awards including the American Society of Hematology AMFDP Award. In her role as an educator, she works with major national societies to advance the medical knowledge of patients and colleagues.


Mount Sinai Medical Center: 4306 Alton Rd 3rd Floor, Miami Beach, FL 33140, USA

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