Mark Zelnick, AU.D.
NPI 1316015340 · Audiologist-Hearing Aid Fitter · Brooklyn, NY
Enrolled with Medicare as Practitioner - Qualified Audiologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Zelnick, AU.D. is a Audiologist-Hearing Aid Fitter provider in Brooklyn, NY (NPI 1316015340).
Provider details
- NPI number
- 1316015340
- Entity type
- Individual
- Primary specialty
- Audiologist-Hearing Aid FitterSpeech, Language and Hearing Service Providers
- Credential
- AU.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 452 (NY)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-30
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Zelnick's NPI number?
- Mark Zelnick's National Provider Identifier (NPI) is 1316015340, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Zelnick's specialty?
- Mark Zelnick is listed in the NPPES registry with a primary specialty of Audiologist-Hearing Aid Fitter (Speech, Language and Hearing Service Providers).
- Where is Mark Zelnick located?
- Mark Zelnick's practice location on file with NPPES is 2204 Flatbush Ave, Brooklyn, NY 11234-4516.
- What is Mark Zelnick's phone number?
- The practice phone number listed in the NPPES registry for Mark Zelnick is (718) 252-0557.
- Does Mark Zelnick accept Medicare?
- Mark Zelnick is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Zelnick's NPI active?
- Yes — Mark Zelnick's NPI (1316015340) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.