NPPES file of Aug 9, 2026

William Fonfeder

Legal Medicine · Brooklyn, NY

William Fonfeder is a legal medicine with a practice address in Brooklyn, New York, and NPI 1568534964, issued on Nov 14, 2006. Check the license (New York 188439, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1568534964
Name
William Fonfeder
Primary taxonomy
Legal Medicine 173000000X
License number
188439 NY
Self-reported in NPPES; status is on the state search
Practice location
1472 53RD St, Brooklyn, NY 11219
Phone
(718) 438-2309
Enumerated
Nov 14, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicaid ID
01661229 NY
Medicare enrollment
Enrolled (PECOS I20040329001803); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest legal medicine records → All 112 in New York → Look up another NPI →

Verify William Fonfeder in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license 188439    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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97% fewer Medicare Part D claims than the average legal medicine in 2024

72 Medicare Part D claims for 16 beneficiaries, against an average of 2,531 among the 246 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims.

  1. William Fonfeder72
  2. Specialty average2,531

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.

Bills Medicare through one group practice

  1. Ahava Medical And Rehabilitation Center, LLCBrooklyn, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

William Fonfeder among 112 legal medicine records in New York

William Fonfeder is one of 112 legal medicine records with a practice address in New York. 46% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 30% newer
  • In a Medicare fileYes · 46% of these records are
  • In the CMS Doctors and Clinicians fileYes · 27% of these records are
  • Graduated1981 · median 1987 among the 30 with a school on file
  • Record last updated2007 · 81% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 173000000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Legal Medicine providers in New York

There are 112 legal medicine records in New York.

All 112 in New York → Every provider in Brooklyn → Legal Medicine nationwide →

The 8 legal medicine records with the nearest ZIP codes

  1. Carlos BuzzettaBrooklyn, NY 112191003020447
  2. Guy Regev, MDBrooklyn, NY 112181215566674
  3. Yelena ShvartsBrooklyn, NY 112231871665562
  4. Paul Cohen, MDBrooklyn, NY 112131760462436
  5. Camille CampbellBrooklyn, NY 112101366282618
  6. Tulio Gomez, M.D.Brooklyn, NY 112281730269549
  7. Ajoy Pandey, M.D.Brooklyn, NY 112281083694814
  8. Lyubov Gorodin, M.D.Brooklyn, NY 112301144248170

Common questions

What is William Fonfeder's NPI number?

William Fonfeder's National Provider Identifier (NPI) is 1568534964, issued on Nov 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Fonfeder located?

The NPPES record lists a practice address at 1472 53RD St, Brooklyn, NY, 11219. Phone: (718) 438-2309. Providers update this record themselves, so call before visiting.

How can I verify William Fonfeder's license?

NPPES lists New York license number 188439, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does William Fonfeder prescribe under Medicare Part D?

In 2024, William Fonfeder had 72 Medicare Part D claims for 16 beneficiaries; the average among legal medicine prescribers was 2,531. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.