1. Home
  2. Directory
  3. California
  4. Los Altos
  5. Audiologist
  6. NPI Profile

ETHAN CHEN AU.D.
NPI 1134096514
Audiologist in Los Altos, CA

Active since October 21, 2025
496 1ST ST STE 120, LOS ALTOS, CA 94022(650) 941-0664(650) 941-2892 Get Directions Write a Review

NPPES record last updated: October 21, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Ethan Chen Au.d. NPPES

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

ETHAN CHEN AU.D. (NPI 1134096514) is an individual audiologist in Los Altos, California, licensed in California (AU4121) and active in the NPI registry since October 2025.

NPPES Registry Identity

NPI1134096514
Entity TypeIndividualMale
Primary Taxonomy231H00000X
Provider Legal NameETHAN CHENCredential: AU.D.
Location Address496 1ST ST STE 120Los Altos, CA 94022-3677
Mailing Address496 1st St Ste 120Los Altos, CA 94022-3677 · (650) 941-0664 · Fax (650) 941-2892
Phone(650) 941-0664
Fax(650) 941-2892
Sole ProprietorNo
Enumeration DateOctober 21, 2025
NPPES CertifiedOctober 21, 2025
✔ NPI 1134096514 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAudiologistSpeech, Language and Hearing Service Providers
Taxonomy Code231H00000X
License✔ Licensed in CA · AU4121
Definition
(1) A specialist in evaluation, habilitation and rehabilitation of those whose communication disorders center in whole or in part in hearing function. Audiologists are autonomous professionals who identify, assess, and manage disorders of the auditory, balance and other neural systems. Audiologists provide audiological (aural) rehabilitation to children and adults across the entire age span. Audiologists select, fit and dispense amplification systems such as hearing aids and related devices. (2) An audiologist is a person qualified by a master's degree in audiology, licensed by the state, where applicable, and practicing within the scope of that license. Audiologists evaluate and treat patients with impaired hearing. They plan, direct and conduct rehabilitative programs with audiotry substitutional devises (hearing aids) and other therapy.
496 1ST ST STE 120, Los Altos, CA 94022
Open in Google Maps ↗

Other Providers at the Same Location NPPES 3

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

ASHLEY MARIE CHWASTYK AU.D.
Audiologist
496 1ST ST STE 120
LOS ALTOS, CA 94022
Santa Clara County (650) 941-0664
DR. DEBORAH WILSON CLARK AU.D.
Audiologist
496 1ST ST STE 120
LOS ALTOS, CA 94022
Santa Clara County (650) 941-0664
PACIFIC HEARING CONNECTION
Audiologist
496 1ST ST STE 120
LOS ALTOS, CA 94022
Santa Clara County (650) 941-0664

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 Ethan Chen's NPI number?

The NPI number for Ethan Chen is 1134096514. It was assigned to this individual provider in the NPPES registry on October 21, 2025.

Where is Ethan Chen located?

Ethan Chen practices at 496 1st St Ste 120, Los Altos, CA 94022. The listed phone number is (650) 941-0664.

What is Ethan Chen's specialty?

The primary specialty registered for this NPI is Audiologist with taxonomy code 231H00000X.

When was this NPI record last updated?

The NPPES record for Ethan Chen was last updated on October 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.