ARLENE DIAZ AU.D
NPI 1003697129
Audiologist in Arcadia, CA

Q: What is Arlene Diaz's NPI number?

The NPI number for Arlene Diaz is 1003697129. It was assigned to this individual provider in the NPPES registry on October 13, 2023.

Q: What is Arlene Diaz's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Arlene Diaz was last updated on August 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.

Active since October 13, 2023

51 N 5TH AVE STE 201, ARCADIA, CA 91006(626) 321-9944(626) 380-9262 Get Directions Write a Review

NPPES record last updated: August 22, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Arlene Diaz Au.d NPPES

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

ARLENE DIAZ AU.D (NPI 1003697129) is an individual audiologist in Arcadia, California, licensed in California (AU3802) and active in the NPI registry since October 2023. She maintains a secondary practice location in Pasadena and is a graduate of Other (2023).

NPPES Registry Identity

NPI1003697129

Entity TypeIndividualFemale

Primary Taxonomy231H00000X

Provider Legal NameARLENE DIAZCredential: AU.D

Location Address51 N 5TH AVE STE 201Arcadia, CA 91006-3711

Mailing Address51 N 5th Ave Ste 201Arcadia, CA 91006-3711 · (626) 321-9944 · Fax (626) 380-9262

Phone(626) 321-9944

Fax(626) 380-9262

Sole ProprietorNo

Medical School CMSOtherGraduated 2023

Enumeration DateOctober 13, 2023

Last NPPES UpdateAugust 22, 2025

NPPES CertifiedAugust 22, 2025

✔ NPI 1003697129 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyAudiologistSpeech, Language and Hearing Service Providers

Taxonomy Code231H00000X

License✔ Licensed in CA · AU3802

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.

Also ListedAudiologist · Assistive Technology SupplierTaxonomy 231HA2500X

Also ListedAudiologist-Hearing Aid FitterTaxonomy 237600000X

51 N 5TH AVE STE 201, Arcadia, CA 91006

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Secondary Practice Location 1

Location 110 Congress St Ste 103Pasadena, CA 91105-3027 · Phone (626) 631-8841 · Fax (626) 380-9262

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Arlene Diaz Au.d is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2567985484

PECOS Enrollment IDI20250401001014

Other Providers at the Same Location NPPES 4

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

H-ENT HEARING SOLUTIONS LLC

Audiologist-Hearing Aid Fitter

51 N 5TH AVE STE 201
ARCADIA, CA 91006

Los Angeles County (626) 321-9944

MR. CHARLES THOMAS BREJCHA M.A.

Audiologist

51 N 5TH AVE STE 201
ARCADIA, CA 91006

Los Angeles County (626) 321-9944

YOUR HEARING CONNECTION AN AUDIOLOGY CORPORATION

Audiologist-Hearing Aid Fitter

51 N 5TH AVE STE 201
ARCADIA, CA 91006

Los Angeles County (626) 321-9944

HUNTINGTON HEARING SOLUTIONS PC

Audiologist-Hearing Aid Fitter

51 N 5TH AVE STE 201
ARCADIA, CA 91006

Los Angeles County (626) 321-9944

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 Arlene Diaz's NPI number?

The NPI number for Arlene Diaz is 1003697129. It was assigned to this individual provider in the NPPES registry on October 13, 2023.

Where is Arlene Diaz located?

Arlene Diaz practices at 51 N 5th Ave Ste 201, Arcadia, CA 91006. The listed phone number is (626) 321-9944.

What is Arlene Diaz's specialty?

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

Is Arlene Diaz enrolled in Medicare?

Yes. Arlene Diaz is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Arlene Diaz was last updated on August 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.