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

Margaret Hartner Mass, AUD

Individual provider Audiologist-Hearing Aid Fitter · NPI 1669622007

Margaret Hartner Mass, AUD is a Qualified Audiologist in Waterbury, Connecticut. Qualified in 2007, 19 years ago. Practices with ENT and Allergy Associates LLP, a 432-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Connecticut and New York.

Years since qualifying
19
Licensed in
CT, NY
In the registry since
2008
Specialties on file
3
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

21 W Main St Fl 3
Waterbury, CT 06702-2016
Phone: (203) 574-3777
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 12 Hdsn Vly Prof Plz, Newburgh, NY 12550-3101 — (845) 562-0760

Specialties & licences

Audiologist (primary) Taxonomy 231H00000X · Licence 659 (CT)
Audiologist-Hearing Aid Fitter Taxonomy 237600000X · Licence 659 (CT)
Audiologist Taxonomy 231H00000X · Licence 002254-1 (NY)

Record details

NPI number1669622007
Entity typeIndividual (Type 1)
GenderFemale
Credentials AUD
Sole proprietorNo
NPI enumeratedSeptember 23, 2008
Last updated in NPPESFebruary 15, 2021
Certification dateFebruary 15, 2021

Medicare enrollment

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

Medicare specialtyQUALIFIED AUDIOLOGIST
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice Ent And Allergy Associates Llp — 432 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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