Oluwaseun Sylvester Williams, MD
Specialist · Brooklyn, NY
Oluwaseun Sylvester Williams, MD is a specialist with a practice address in Brooklyn, New York, and NPI 1427752070, issued on Mar 28, 2023. Check the license with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Oluwaseun Sylvester Williams
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- Practice location
- 451 Clarkson Ave, Brooklyn, NY 11203
- Phone
- (245) 313-1718
- Enumerated
- Mar 28, 2023
- Record last updated
- Mar 28, 2023
- Entity
- Type 1 · individual
8 nearest specialist records → All 22,636 in New York → Look up another NPI →
Also registered at 451 Clarkson Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Angela Adams, LCSWClinical Social Worker1598085607
- Sapna Adappa, D.D.S.Student in an Organized Health Care Education/Training Program1598052128
Verify Oluwaseun Sylvester Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average specialist in 2024
45 Medicare Part D claims for 16 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.
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.
Oluwaseun Sylvester Williams among 22,636 specialist records in New York
Oluwaseun Sylvester Williams, MD is one of 22,636 specialist records with a practice address in New York. 6% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 83% of them.
- NPI issued2023 · 83% of these records are older, 12% newer
- In a Medicare fileYes · 6% of these records are
- In the CMS Doctors and Clinicians fileNo · 4% of these records are
- Record last updated2023 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5,700 specialist records list a practice address in Brooklyn
They are 5,700 of the 64,057 NPPES records with a practice address in Brooklyn, and 22,636 specialist records in New York.
All 22,636 in New York → Every provider in Brooklyn → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Ioanis Atoynatan, MDBrooklyn, NY 112031417912809
- Velia Capati, M.D.Brooklyn, NY 112031790866788
- Albert Douglas, MDBrooklyn, NY 112031033111737
- Elena Estuita, M.D.Brooklyn, NY 112031427134550
- Shana GlickBrooklyn, NY 112031235491002
- Igor Khutoretskiy, M/DBrooklyn, NY 112031962462416
- Ifeanyi Obiakor, M.DBrooklyn, NY 112031487616611
- Donna-Marie Philbert, MS.EDBrooklyn, NY 112031013218759
Common questions
What is Oluwaseun Sylvester Williams, MD's NPI number?
Oluwaseun Sylvester Williams, MD's National Provider Identifier (NPI) is 1427752070, issued on Mar 28, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Oluwaseun Sylvester Williams, MD located?
The NPPES record lists a practice address at 451 Clarkson Ave, Brooklyn, NY, 11203. Phone: (245) 313-1718. Providers update this record themselves, so call before visiting.
How can I verify Oluwaseun Sylvester Williams, MD's license?
Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Oluwaseun Sylvester Williams, MD prescribe under Medicare Part D?
In 2024, Oluwaseun Sylvester Williams, MD had 45 Medicare Part D claims for 16 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
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.