NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dorothy Hannah Yamaguchi, AUD

Audiologist-Hearing Aid Fitter in Pasadena, CA · enumerated 2023 · practices at Ara Keshishian, A Professional Medical Corp.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1750167078

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dorothy Hannah Yamaguchi
Credential AUD
Sex Female
Practice address Pasadena, CA, 91105
Enumeration date Sep 1, 2023
Last updated in NPPES Sep 1, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers Primary
AUD · Doctor of Audiology: A licensed audiologist diagnosing and treating hearing and balance disorders. About the AUD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Dorothy Yamaguchi?
The National Provider Identifier (NPI) for Dorothy Yamaguchi is 1750167078, a Type 1 (individual) record in the CMS NPPES registry.
Where does Dorothy Yamaguchi practice?
The practice location on file with NPPES is in Pasadena, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-01.