Mark Zelnick Inc
NPI 1164708939 · Audiologist-Hearing Aid Fitter · Brooklyn, NY
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Zelnick Inc is a Audiologist-Hearing Aid Fitter organization in Brooklyn, NY (NPI 1164708939).
Provider details
- NPI number
- 1164708939
- Entity type
- Organization
- Primary specialty
- Audiologist-Hearing Aid FitterSpeech, Language and Hearing Service Providers
- Organization subpart
- No
- Authorized official
- Mark Zelnick, Audiologist(718) 252-0557
- 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
14 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
- 2011-10-25
- Last updated
- 2011-10-25
Frequently asked questions
- What is Mark Zelnick Inc's NPI number?
- Mark Zelnick Inc's National Provider Identifier (NPI) is 1164708939, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mark Zelnick Inc?
- Mark Zelnick Inc is classified in the NPPES registry as Audiologist-Hearing Aid Fitter (Speech, Language and Hearing Service Providers).
- Where is Mark Zelnick Inc located?
- Mark Zelnick Inc's practice location on file with NPPES is 2204 Flatbush Ave, Brooklyn, NY 11234-4516.
- What is Mark Zelnick Inc's phone number?
- The practice phone number listed in the NPPES registry for Mark Zelnick Inc is (718) 252-0557.
- Does Mark Zelnick Inc accept Medicare?
- Mark Zelnick Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Mark Zelnick Inc?
- The authorized official listed on Mark Zelnick Inc's NPPES record is Mark Zelnick, Audiologist. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mark Zelnick Inc's NPI active?
- Yes — Mark Zelnick Inc's NPI (1164708939) is active in the NPPES registry as of the last update on 2011-10-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.