NPPES file of Aug 9, 2026

Audiologist-Hearing Aid Fitter in California

421 NPPES records list audiologist-hearing aid fitter with a practice address in California, 1.1 per 100,000 residents, the 13th highest rate of 51. San Francisco and Los Angeles have the most; each record links to the provider's NPI and the California license search. Page 9 of 9.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 237600000X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

San Francisco has the most, 30

  1. San Francisco30
  2. Los Angeles22
  3. San Diego21
  4. Sacramento12
  5. Bakersfield9

Audiologist-Hearing Aid Fitter records in California

  1. Letta Wesley, M.S.Modesto, CA 953501699949883
  2. Richard Whitaker, AU.D.Rancho Cucamonga, CA 917301023399276
  3. Christine WilsonThousand Oaks, CA 913611891889580
  4. Eleanor Wilson, AU.D.Bakersfield, CA 933091831226083
  5. Jonathan Wilson, AU.D.Oceanside, CA 902551639548910
  6. Melissa WilsonSan Francisco, CA 941031679734966
  7. Linda WiltzBeverly Hills, CA 902111407039480
  8. Thomas Wise, AU.D.Rancho Cucamonga, CA 917301194155325
  9. Kenneth Wood, AUDYuba City, CA 959911386845485
  10. David Woodruff, AU.DRancho Santa Fe, CA 920671851501977
  11. Ivan Wu, AU.DArcadia, CA 910061891900890
  12. Dorothy Yamaguchi, AUDPasadena, CA 911051750167078
  13. Sherry Young, AU.D.CCC-ALos Angeles, CA 900571114942547
  14. Terrance Yuen, AU.D.Pasadena, CA 911061083141113
  15. Carolyn YuilleGlendora, CA 917401063601201
  16. Wade Zarella, M.A., CCC-ARancho Mirage, CA 922701609013051
  17. Adel ZaretskyLos Angeles, CA 900481356445373
  18. Jeffrey Zemrak, HEARING AID DISPBakersfield, CA 933011124227996
  19. Rudy ZentenoRancho Cucamonga, CA 917301063987139
  20. Lisa Zhao, AU.D.Walnut Creek, CA 945961407011679
  21. Angel ZieskVentura, CA 930031154743490

Source: CMS NPPES, primary taxonomy 237600000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 13 of 51 per resident

  1. Colorado1.2
  2. Nebraska1.1
  3. Rhode Island1.1
  4. California1.1
  5. Kansas1.0
  6. Pennsylvania1.0
  7. 50 states and D.C.0.8

Source: CMS NPPES, primary taxonomy 237600000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

18.1% of these records appear in a Medicare file, against 22.8% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. California18.1%
  2. United States22.8%

Audiologist-Hearing Aid Fitter records in California, measured

  • In a Medicare file76 of 421 · 18.1% here, 22.8% nationally
  • In the CMS Doctors and Clinicians file107 · 25.4% here, 27.9% nationally
  • Not updated in five years or more227 · 53.9% here, 65.4% nationally
  • Median graduation year2009 · the 107 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 237600000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

421 NPPES records list audiologist-hearing aid fitter (237600000X) as their primary taxonomy with a practice address in California: 1.1 per 100,000 residents against 0.8 nationally (50 states and D.C.). San Francisco has 30 of them (7%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Texas242
  2. New York179
  3. Pennsylvania128
  4. Ohio114

States with a similar rate per 100,000

  1. Rhode Island1.1
  2. Nebraska1.1
  3. Kansas1.0
  4. Colorado1.2

The largest states

  1. Texas242
  2. New York179
  3. Pennsylvania128
  4. Ohio114
  5. Arizona111

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record 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.