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DR. MARK I ZELNICK AU.D.
NPI 1316015340
Audiologist-Hearing Aid Fitter in Brooklyn, NY

Active since November 30, 2006Accepts Medicare Assignment
2204 FLATBUSH AVE, BROOKLYN, NY 11234(718) 252-0557 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Mark I Zelnick Au.d. NPPES

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

DR. MARK I ZELNICK AU.D. (NPI 1316015340) is an individual audiologist-hearing aid fitter provider in Brooklyn, New York, licensed in New York (452) and active in the NPI registry since November 2006. He is a graduate of Other (2006).

NPPES Registry Identity

NPI1316015340
Entity TypeIndividualMale
Primary Taxonomy237600000X
Provider Legal NameDR. MARK I ZELNICKCredential: AU.D.
Location Address2204 FLATBUSH AVEBrooklyn, NY 11234-4516
Mailing Address2204 Flatbush AveBrooklyn, NY 11234-4516 · (718) 252-0557
Phone(718) 252-0557
Sole ProprietorNo
Medical School CMSOtherGraduated 2006
Enumeration DateNovember 30, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1316015340 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAudiologist-Hearing Aid FitterSpeech, Language and Hearing Service Providers
Taxonomy Code237600000X
License✔ Licensed in NY · 452
Definition
An audiologist/hearing aid fitter is the professional who specializes in evaluating and treating people with hearing loss, conducts a wide variety of tests to determine the exact nature of an individual's hearing problem, presents a variety of treatment options to patients, dispenses and fits hearing aids, administers tests of balance to evaluate dizziness and provides hearing rehabilitation training. This classification should be used where individuals are licensed as audiologist-hearing aid fitters as opposed to states that license individuals as audiologists.
2204 FLATBUSH AVE, Brooklyn, NY 11234
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Other Identifiers 2

Medicare UPINM00792NY
Medicare UPINM00791NY

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health Plan, Inc., Oscar Insurance Company.Insurance ›

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

Dr. Mark I Zelnick Au.d. 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 ID6901071026
PECOS Enrollment IDI20111219000292

Medicare Billing Reassignment

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

Mark Zelnick Inc
Same address
Audiologist-Hearing Aid Fitter
2204 FLATBUSH AVE
Brooklyn, NY 11234
  • Reassigned Medicare billing, New York enrollment
NPI 1164708939 (718) 252-0557

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11234 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$67.40 typical visit price
range $67.40 – $203.53
Typical copayment $16.85 (range $16.85 – $50.88)
Most-billed visit code 99202
Established Patient
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARK ZELNICK INC
Audiologist-Hearing Aid Fitter
2204 FLATBUSH AVE
BROOKLYN, NY 11234
Kings County (718) 252-0557

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 Mark Zelnick's NPI number?

The NPI number for Mark Zelnick is 1316015340. It was assigned to this individual provider in the NPPES registry on November 30, 2006.

Where is Mark Zelnick located?

Mark Zelnick practices at 2204 Flatbush Ave, Brooklyn, NY 11234. The listed phone number is (718) 252-0557.

What is Mark Zelnick's specialty?

The primary specialty registered for this NPI is Audiologist-Hearing Aid Fitter with taxonomy code 237600000X.

Is Mark Zelnick enrolled in Medicare?

Yes. Mark Zelnick 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 Mark Zelnick's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Zelnick reassigns Medicare benefits to Mark Zelnick Inc (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 Mark Zelnick's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Zelnick accept?

Health plans from Oscar Health Plan, Inc. and Oscar Insurance Company list Mark Zelnick as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mark Zelnick 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.