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WILLIAM FONFEDER
NPI 1568534964
Legal Medicine in Brooklyn, NY

Active since November 14, 2006PECOS EnrolledAccepts Medicare Assignment
1472 53RD ST, BROOKLYN, NY 11219(718) 438-2309 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About William Fonfeder NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM FONFEDER (NPI 1568534964) is an individual legal medicine provider in Brooklyn, New York, licensed in New York (188439) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1981).

NPPES Registry Identity

NPI1568534964
Entity TypeIndividualMale
Primary Taxonomy173000000X
Provider Legal NameWILLIAM FONFEDER
Location Address1472 53RD STBrooklyn, NY 11219-3948
Mailing Address1472 53rd StBrooklyn, NY 11219-3948 · (718) 438-2309
Phone(718) 438-2309
Sole ProprietorYes
Medical School CMSOtherGraduated 1981
Enumeration DateNovember 14, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1568534964 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyLegal MedicineOther Service Providers
Taxonomy Code173000000X
License✔ Licensed in NY · 188439
Definition
The specialty areas of medicine concerned with matters of, and relations with, substantive law and legal institutions; such as the conduct of medical examinations at crime scenes, performance of autopsies, giving of expert medical testimony in judicial proceedings, medical treatment of inmates of penal institutions, the practice of trauma medicine in law enforcement settings, and other clinical practice and medical science applications in the fields of law, law enforcement, and corrections.
1472 53RD ST, Brooklyn, NY 11219
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Other Identifiers 3

Medicare UPINF47095NY
Medicare ID-Type Unspecified019AS1NY
Medicaid01661229NY

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William Fonfeder is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2961394283
PECOS Enrollment IDI20040329001803
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show William Fonfeder reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ahava Medical And Rehabilitation Center, LLC
2.4 mi
Rehabilitation Practitioner
2555 NOSTRAND AVE
Brooklyn, NY 11210
  • Reassigned Medicare billing, New York enrollment
  • 279 clinicians in this Medicare group
NPI 1184878274 (718) 951-8800

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
33 services20 patients

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
1 supplier390 claims1,926 services$214.01 avg. paid by Medicare
Receiver (monitor), dedicated, for use with therapeutic glucose continuous monitor system K0554
DME-Other DME · category DE017N
1 supplier380 claims380 services$211.69 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Fonfeder's NPI number?

The NPI number for William Fonfeder is 1568534964. It was assigned to this individual provider in the NPPES registry on November 14, 2006.

Where is William Fonfeder located?

William Fonfeder practices at 1472 53rd St, Brooklyn, NY 11219. The listed phone number is (718) 438-2309.

What is William Fonfeder's specialty?

The primary specialty registered for this NPI is Legal Medicine with taxonomy code 173000000X.

Is William Fonfeder enrolled in Medicare?

Yes. William Fonfeder is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for William Fonfeder's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Fonfeder reassigns Medicare benefits to Ahava Medical And Rehabilitation Center, LLC (Brooklyn, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Fonfeder's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for William Fonfeder was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.