What is Ethan Chen's NPI number?

Ethan Chen's National Provider Identifier (NPI) is 1134096514, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Ethan Chen's specialty?

Ethan Chen is listed in the NPPES registry with a primary specialty of Audiologist (Speech, Language and Hearing Service Providers).

Where is Ethan Chen located?

Ethan Chen's practice location on file with NPPES is 496 1st St Ste 120, Los Altos, CA 94022-3677.

What is Ethan Chen's phone number?

The practice phone number listed in the NPPES registry for Ethan Chen is (650) 941-0664.

Is Ethan Chen's NPI active?

Yes — Ethan Chen's NPI (1134096514) is active in the NPPES registry as of the last update on 2025-10-21.

IndividualActive

Ethan Chen, AU.D.

NPI 1134096514 · Audiologist · Los Altos, CA

Ethan Chen, AU.D. is a Audiologist provider in Los Altos, CA (NPI 1134096514).

Provider details

NPI number: 1134096514
Entity type: Individual
Primary specialty: AudiologistSpeech, Language and Hearing Service Providers
Credential: AU.D.
Sex: Male
Sole proprietor: No
License: AU4121 (CA)

Specialties & taxonomies

AudiologistPrimary231H00000XLicense AU4121 (CA)
Speech, Language and Hearing Service Providers

Profile Score

Established profile(54/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in 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

496 1st St Ste 120

Los Altos, CA 94022-3677

Phone: (650) 941-0664

Fax: (650) 941-2892

Street-level locationGet directions

More CA providers

Mailing address