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ASHLEY MARIE CHWASTYK AU.D.
NPI 1013441583
Audiologist in Los Altos, CA

Active since April 12, 2017
496 1ST ST STE 120, LOS ALTOS, CA 94022(650) 941-0664(650) 941-2892 Get Directions Write a Review

NPPES record last updated: August 20, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Aug 18, 2020, Oct 11, 2019, Apr 12, 2017 (3 updates tracked since 2017).

About Ashley Marie Chwastyk Au.d. NPPES

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

ASHLEY MARIE CHWASTYK AU.D. (NPI 1013441583) is an individual audiologist in Los Altos, California, licensed in California (3219) and active in the NPI registry since April 2017. She is a graduate of Other (2017).

NPPES Registry Identity

NPI1013441583
Entity TypeIndividualFemale
Primary Taxonomy231H00000X
Provider Legal NameASHLEY MARIE CHWASTYKCredential: 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
Medical School CMSOtherGraduated 2017
Enumeration DateApril 12, 2017
Last NPPES UpdateAugust 20, 20253 updates tracked since enumeration
NPPES CertifiedAugust 20, 2025
✔ NPI 1013441583 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 · 3219
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
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ashley Marie Chwastyk Au.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID648606012
PECOS Enrollment IDI20200203001307

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Comprehensive hearing and speech recognition test 92557
A comprehensive hearing and speech recognition test assesses your ability to hear and understand spoken words. It includes hearing tests to check for issues with sound perception and speech tests to evaluate your word recognition. It's a crucial step in identifying any hearing or speech problems.
53 services53 patients
Placement of ear probe for computerized measurement of repeated sounds with interpretation and report 92588
This procedure involves placing a probe in your ear to measure how it responds to repeated sounds. The data is then interpreted by a computer to assess your hearing health. The findings are compiled into a report for further evaluation.
37 services37 patients
Test for eardrum and muscle function 92550
This test assesses the health of your eardrum and muscles linked to hearing. A small device is placed in your ear that creates pressure changes and sounds. Your ear's responses are recorded to determine if they are functioning properly.
27 services27 patients
Test to assess middle ear function 92567
A test to assess middle ear function, also known as an impedance audiometry, helps evaluate how well your middle ear works. It measures the movement of your eardrum in response to changes in air pressure. This can help identify issues like fluid build-up, ear infections, or eardrum perforations.
27 services27 patients

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.

ETHAN CHEN 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 Ashley Chwastyk's NPI number?

The NPI number for Ashley Chwastyk is 1013441583. It was assigned to this individual provider in the NPPES registry on April 12, 2017.

Where is Ashley Chwastyk located?

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

What is Ashley Chwastyk's specialty?

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

Is Ashley Chwastyk enrolled in Medicare?

Yes. Ashley Chwastyk is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Ashley Chwastyk was last updated on August 20, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.