Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Mark I Zelnick, AUD

Individual provider Audiologist-Hearing Aid Fitter · NPI 1316015340

Dr. Mark I Zelnick, AUD is a Qualified Audiologist in Brooklyn, New York. Qualified in 2006, 20 years ago. Accepts Medicare assignment. Licensed in New York.

Years since qualifying
20
Licensed in
NY
In the registry since
2006
What do these letters mean?
AUD — Doctor of Audiology
A hearing specialist who tests hearing and fits hearing aids.

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Practice location Address checks out

2204 Flatbush Ave
Brooklyn, NY 11234-4516
Phone: (718) 252-0557
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Audiologist-Hearing Aid Fitter (primary) Taxonomy 237600000X · Licence 452 (NY)

Record details

NPI number1316015340
Entity typeIndividual (Type 1)
GenderMale
Credentials AUD
Sole proprietorNo
NPI enumeratedNovember 30, 2006
Last updated in NPPESJuly 8, 2007
Mailing address2204 Flatbush Ave, Brooklyn, NY 11234-4516

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyQUALIFIED AUDIOLOGIST
Medical schoolOTHER
Graduated 2006 (20 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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