Deborah Wilson Clark, AU.D.
Audiologist · Los Altos, CA
Deborah Wilson Clark, AU.D. is an audiologist with a practice address in Los Altos, California, and NPI 1801935424, issued on Feb 6, 2007. Check the license (California 1833, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Deborah Wilson Clark
- Credential
- AU.D.
- Primary taxonomy
- Audiologist 231H00000X
- License numbers
- 1833 CA
AU 1833 CA
Self-reported in NPPES; status is on the state search - Practice location
- 496 1St St Ste 120, Los Altos, CA 94022
- Phone
- (650) 941-0664
- Enumerated
- Feb 6, 2007
- Record last updated
- Aug 20, 2025
- Fax
- (650) 941-2892
- Medicaid ID
- GR0023741 CA
- Medicare enrollment
- Enrolled (PECOS I20050712000559); may accept Medicare assignment
- Medical or professional school
- Pennsylvania College Of Optometry, 2009
- Entity
- Type 1 · individual
8 nearest audiologist records → All 1,561 in California → Look up another NPI →
Also registered at 496 1St St Ste 120
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ethan Chen, AU.D.Audiologist1134096514
- Ashley Chwastyk, AU.D.Audiologist1013441583
Verify Deborah Wilson Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 1833Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Pacific Hearing Clinic Inc.Menlo Park, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Deborah Wilson Clark among 1,561 audiologist records in California
Deborah Wilson Clark, AU.D. is one of 1,561 audiologist records with a practice address in California. 23% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 22% of them.
- NPI issued2007 · 22% of these records are older, 64% newer
- In a Medicare fileYes · 23% of these records are
- In the CMS Doctors and Clinicians fileYes · 28% of these records are
- Graduated2009 · median 2014 among the 433 with a school on file
- Record last updated2025 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 231H00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 audiologist records list a practice address in Los Altos
They are 6 of the 718 NPPES records with a practice address in Los Altos, and 1,561 audiologist records in California.
All 1,561 in California → Every provider in Los Altos → Audiologist nationwide →
The 8 audiologist records with the nearest ZIP codes
- Ethan Chen, AU.D.Los Altos, CA 940221134096514
- Ashley Chwastyk, AU.D.Los Altos, CA 940221013441583
- Allison Kowalczyk, M.S.Los Altos, CA 940221023278066
- Jennifer Lathrop, M.A.Los Altos, CA 940221235279266
- Brook Raguskus, AU.D.Los Altos, CA 940221073654331
- Rachel Appleton, AUDMenlo Park, CA 940251174022685
- Jane Baxter, AU.D.Menlo Park, CA 940251013057223
- John Dundas, PH.D.Menlo Park, CA 940251932376498
Common questions
What is Deborah Wilson Clark, AU.D.'s NPI number?
Deborah Wilson Clark, AU.D.'s National Provider Identifier (NPI) is 1801935424, issued on Feb 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Deborah Wilson Clark, AU.D. located?
The NPPES record lists a practice address at 496 1St St Ste 120, Los Altos, CA, 94022. Phone: (650) 941-0664. Providers update this record themselves, so call before visiting.
How can I verify Deborah Wilson Clark, AU.D.'s license?
NPPES lists California license number 1833, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.