NPPES file of Aug 9, 2026

Hearing Instrument Specialist in California

994 NPPES records list hearing instrument specialist with a practice address in California, 2.6 per 100,000 residents, the 40th highest rate of 51. San Diego and Fresno have the most; each record links to the provider's NPI and the California license search. Page 20 of 20.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 237700000X · method

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

San Diego has the most, 26

  1. San Diego26
  2. Fresno24
  3. Los Angeles21
  4. Long Beach18
  5. Carlsbad17

Hearing Instrument Specialist records in California

  1. Gaylord WertLaguna Hills, CA 926531801145990
  2. Jacqueline WertFountain Valley, CA 927081740415728
  3. Denn WessonModesto, CA 953541841339249
  4. Douglas Wesson, ACAManteca, CA 953371750313359
  5. Tim WestWestminster, CA 926831144742305
  6. Dorothy Westall, HASEscondido, CA 920251679848287
  7. Monte WestallLaguna Hills, CA 926531154670099
  8. Donald WestcottDaly City, CA 940151598981748
  9. Justin WhatleyOceanside, CA 920561871082669
  10. Craig Whitcomb, HADRancho Mirage, CA 922701811318462
  11. Lorie WhitcombRancho Mirage, CA 922701093211872
  12. Isaac White, HEARING AID DISPENSEElk Grove, CA 957581295154326
  13. Lonnie Wickham, HISWalnut Creek, CA 945951366270209
  14. Mihiduni L Ekanayake Wijesundara EkanayakeLaguna Hills, CA 926531033967849
  15. Julianne WileyCarlsbad, CA 920081487030250
  16. Evelyn WilkinsonSan Diego, CA 921161740423201
  17. Brie WilliamsEncino, CA 914361598046039
  18. Jayson Williams, HADWalnut Creek, CA 945961932449618
  19. Kelly Williams, HEARING AID DISPENSECovina, CA 917231487889465
  20. Caitlin Windsor, BARiverside, CA 925081376881789
  21. William Winston, BC-HISSan Luis Obispo, CA 934011932178779
  22. Della WolfsonLos Angeles, CA 900641699815860
  23. Jeffrey Wolmer, H.I.S.Poway, CA 920641366571986
  24. Sandy Wong, MASan Gabriel, CA 917761518461730
  25. Kenneth Wood, BC-HISRedding, CA 960011841406444
  26. Lisa Wood, HADRedlands, CA 923731912209651
  27. Thomas WoodenSacramento, CA 958211336281997
  28. Diana WorthyAnaheim, CA 928021285773093
  29. Wendy Wyman, HADCarlsbad, CA 920081922668631
  30. Aileen Yang, HADRancho Cucamonga, CA 917301841032943
  31. Alexander YerkesVentura, CA 930031811340037
  32. Ki Chun YipOakland, CA 946121316299852
  33. Evelyn Yoc, HASanta Clarita, CA 913211013300169
  34. Juan YocPasadena, CA 911011508057753
  35. Michael YorkyVentura, CA 930031063205540
  36. Hannah Younesi, HISOxnard, CA 930361194298000
  37. Robby YoungIndio, CA 922031861573958
  38. Jianguo YuRowland Heights, CA 917481922282318
  39. Netanel Zadbeh, BC-HISTarzana, CA 913561164889697
  40. Andy ZavalaChula Vista, CA 919101306474366
  41. Sonia Zavala, RNPasadena, CA 911061700594769
  42. Laura Zepeda, HEARING INSTRUMENT SCovina, CA 917731144451519
  43. Chaoying ZhangCupertino, CA 950141720962194
  44. Louise ZimmermanRoseville, CA 956781023431434

Source: CMS NPPES, primary taxonomy 237700000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 40 of 51 per resident

  1. Rhode Island2.7
  2. Texas2.7
  3. Arkansas2.6
  4. California2.6
  5. Utah2.5
  6. Louisiana2.4
  7. 50 states and D.C.3.2

Source: CMS NPPES, primary taxonomy 237700000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

0.2% of these records appear in a Medicare file, against 0.1% 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. California0.2%
  2. United States0.1%

Hearing Instrument Specialist records in California, measured

  • In a Medicare file2 of 994 · 0.2% here, 0.1% nationally
  • In the CMS Doctors and Clinicians file2 · 0.2% here, 0.2% nationally
  • Not updated in five years or more646 · 65.0% here, 65.3% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 237700000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

994 NPPES records list hearing instrument specialist (237700000X) as their primary taxonomy with a practice address in California: 2.6 per 100,000 residents against 3.2 nationally (50 states and D.C.). San Diego has 26 of them (3%).

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. Florida1,129
  2. Texas828
  3. Pennsylvania447
  4. Illinois408

States with a similar rate per 100,000

  1. Arkansas2.6
  2. Utah2.5
  3. Louisiana2.4
  4. Tennessee2.4

The largest states

  1. Florida1,129
  2. Texas828
  3. Pennsylvania447
  4. Illinois408
  5. Ohio370

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.