Yair Yonatan Keilson, MD
Hematology & Oncology Physician · Brooklyn, NY
Yair Yonatan Keilson, MD is a hematology & oncology physician with a practice address in Brooklyn, New York, and NPI 1861601197, issued on May 22, 2007. Check the license (New York 242397, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Yair Yonatan Keilson
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 242397 NY
Self-reported in NPPES; status is on the state search - Practice location
- 902 Quentin RD, Brooklyn, NY 11223
- Phone
- (917) 736-9740
- Enumerated
- May 22, 2007
- Record last updated
- Mar 23, 2023
- Medicare enrollment
- Enrolled (PECOS I20090812000154); accepts Medicare assignment
- Medical or professional school
- State University Of New York Downstate Medical Center, 2005
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,163 in New York → Look up another NPI →
Also registered at 902 Quentin RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Wen Jie Chau, FNPFamily Nurse Practitioner1174269575
- Marialena Coffey, NPGerontology Nurse Practitioner1730736729
- Chenee Cytall-Leslie, NURSE PRACTITIONERPrimary Care Nurse Practitioner1356067797
- Anita Gokhfeld, FNPFamily Nurse Practitioner1467107136
Verify Yair Yonatan Keilson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 242397Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
633 Medicare Part D claims for 127 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 18 claims were for opioids.
Most prescribed
- Eliquis93 claims
- Hydroxyurea55 claims
- Imbruvica42 claims
- Anastrozole33 claims
- Xarelto27 claims
- Atorvastatin Calcium22 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 84.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $488.67
19 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- New York UniversityNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Yair Yonatan Keilson among 1,163 hematology & oncology physician records in New York
Yair Yonatan Keilson, MD is one of 1,163 hematology & oncology physician records with a practice address in New York. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 47% of them.
- NPI issued2007 · 47% of these records are older, 44% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2005 · median 2002 among the 833 with a school on file
- Record last updated2023 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in New York
There are 1,163 hematology & oncology physician records in New York.
All 1,163 in New York → Every provider in Brooklyn → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Kenneth Csehak, MDBrooklyn, NY 112201114459989
- Qi Feng, M.D.Brooklyn, NY 112201659519650
- Michelle Fleyshman, MDBrooklyn, NY 112201841751013
- Songchuan Guo, M.D.Brooklyn, NY 112201013214535
- Julie Huang, D.O.Brooklyn, NY 112201669821005
- Yiwu Huang, MDBrooklyn, NY 112201780798462
- Samuel Kopel, MDBrooklyn, NY 112201699889451
- Susan Radoux, M.D.Brooklyn, NY 112201932281490
Common questions
What is Yair Yonatan Keilson, MD's NPI number?
Yair Yonatan Keilson, MD's National Provider Identifier (NPI) is 1861601197, issued on May 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Yair Yonatan Keilson, MD located?
The NPPES record lists a practice address at 902 Quentin RD, Brooklyn, NY, 11223. Phone: (917) 736-9740. Providers update this record themselves, so call before visiting.
How can I verify Yair Yonatan Keilson, MD's license?
NPPES lists New York license number 242397, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Yair Yonatan Keilson, MD prescribe under Medicare Part D?
In 2024, Yair Yonatan Keilson, MD had 633 Medicare Part D claims for 127 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Yair Yonatan Keilson, MD's MIPS final score?
The 2023 MIPS final score is 84.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.