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 5 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. Dennis Davis-TuckerSan Juan Capistrano, CA 926751508625328
  2. Jannette Day, HIS HADBTulare, CA 932741982834719
  3. Sandie Dela Cruz, PHD, AUDLong Beach, CA 908151942693411
  4. Richard DelcarloFresno, CA 937101518348903
  5. Maria DelgadoCarlsbad, CA 920081407602469
  6. Samuel DelgadoGardena, CA 902471922665272
  7. Kristin Dennis, HISLaguna Hills, CA 926531730536566
  8. Josie DentonLodi, CA 952421689230575
  9. Leslie DerasSan Francisco, CA 941181720837065
  10. Eric Deveau, HADSanta Barbara, CA 931051831329796
  11. Jennifer DeveauSanta Maria, CA 934541124852439
  12. Piara DhillonEscondido, CA 920251164658852
  13. Cristina DiazWestminster, CA 926831528926789
  14. Harmony Dick, HISBeaumont, CA 922231568840056
  15. Bernard DietschEl Cajon, CA 920201548485246
  16. Mary DietschSan Diego, CA 921041215593306
  17. Paul Dietsch, B.A.Oceanside, CA 920541891893293
  18. Lee DilesPetaluma, CA 949541497126932
  19. William DilesSanta Rosa, CA 954091750785200
  20. Katherine DishnerEl Cajon, CA 920211003283961
  21. Alice Dobek, HADSan Diego, CA 921271609171891
  22. Joseph Dobrik, HEARING AID DISPENSEBrea, CA 928211154556124
  23. Pramoda Dodangoda Arachchige, HISFairfield, CA 945331609468362
  24. William Dodd, HADBeverly Hills, CA 902111518480409
  25. Sarah Dolar, H.I.S.Fairfield, CA 945331760196950
  26. Joshua DomingoBrea, CA 928211396370722
  27. Brian DoyleSoquel, CA 950731508555863
  28. Tammy DuarteLong Beach, CA 908061831600204
  29. Christina DucaYuba City, CA 959911639649098
  30. Karin DuffVallejo, CA 945901326973371
  31. Diane DuffyFair Oaks, CA 956281194227017
  32. Monica DugginsModesto, CA 953501710231295
  33. Joel Duguay, HISNapa, CA 945581154613545
  34. Mona DunahoeLa Mesa, CA 919421467678268
  35. Darrell Duncan, HAD HA 8385Lancaster, CA 935341194385492
  36. Stacy Dunn, BC-HISRedding, CA 960011497264956
  37. Eric Dyson, HISGarden Grove, CA 928451417354135
  38. Robert EberleOakland, CA 946121659597805
  39. Daniel Edmondson, H.I.S LICENSE #325Upland, CA 917861679996086
  40. Tracy EfeMilpitas, CA 950351821866948
  41. Soroush Eghterafi, HEARING AID DISPENSELong Beach, CA 908051437488616
  42. Brian EisermannParadise, CA 959691891910501
  43. Chris EisermannChico, CA 959261801515440
  44. Allen EndersOrange, CA 928671467980136
  45. Olga Enders, HADOrange, CA 928671255853651
  46. Cathy EngelSanta Monica, CA 904031043725773
  47. Debra English, HADPaso Robles, CA 934461487884342
  48. Brandon Epting-DevoreEl Cerrito, CA 945301336027374
  49. Charles Erickson, HEARING AID SPECIALIPalm Desert, CA 922601437230653
  50. Sergio Escamilla, HEARING AID DISPENSEArcadia, CA 910071932671864

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.