Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Yair Yonatan Keilson, MD

Individual provider Hematology & Oncology Physician · NPI 1861601197

Yair Yonatan Keilson, MD is a Hematology/Oncology in Brooklyn, New York. Graduated from State University of New York Downstate Medical Center in 2005, 21 years ago. Practices with New York University, a 5,884-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
21
Trained at
State University of New York Downstate Medical Center
Licensed in
NY
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

902 Quentin Rd
Brooklyn, NY 11223-2214
Phone: (917) 736-9740
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 200 Boundary Ave, Massapequa, NY 11758-1152 — (516) 755-2404

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 242397 (NY)

Record details

NPI number1861601197
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 22, 2007
Last updated in NPPESMarch 23, 2023
Certification dateMarch 23, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolSTATE UNIVERSITY OF NEW YORK DOWNSTATE MEDICAL CENTER
Graduated 2005 (21 years in practice)
Group practice New York University — 5884 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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