NPPES file of Aug 9, 2026

Peer Specialist in California

4,528 NPPES records list peer specialist with a practice address in California, 11.6 per 100,000 residents, the 13th highest rate of 50. San Diego and Riverside have the most; each record links to the provider's NPI and the California license search. Page 14 of 91.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 175T00000X · method

San Diego has the most, 384

Peer Specialist records in California

  1. Jesenia CarreonChula Vista, CA 919111851904361
  2. Jose Carreon-BennettLancaster, CA 935351417720541
  3. Jonas Carrera, CPSSSan Diego, CA 921111619590296
  4. Alicia CarrilloHawaiian Gardens, CA 907161811520919
  5. Christopher CarrilloPorterville, CA 932571588527865
  6. Francesco CarrilloSan Diego, CA 921081841160108
  7. Keara CarrilloLancaster, CA 935341568206795
  8. Maria CarrilloSan Jose, CA 951311689096711
  9. Paula CarrilloEl Cajon, CA 920201942895024
  10. Stephanie CarriolaSacramento, CA 958261225791817
  11. Maurice CarsonFremont, CA 945381669239893
  12. Dwight CarterPacoima, CA 913311235501255
  13. Haley CarterRiverside, CA 925031326761115
  14. James CarterTulare, CA 932741689499683
  15. Jasmine Carter, CMPSSLakewood, CA 907121235991373
  16. Jennifer CarterSan Rafael, CA 949011205432531
  17. Lorne CarterRiverside, CA 925041376196501
  18. Randy CarterSan Francisco, CA 941031689292633
  19. Lois Carter-ShawStockton, CA 952071629403829
  20. Miguel Carvente HernandezLake Forest, CA 926301679460141
  21. Philip CarwinSalinas, CA 939011326171802
  22. Jessica CasadayMerced, CA 953411518087014
  23. Jamie Casarez-PuentesSan Diego, CA 921021477093920
  24. Juan Casas SalazarSan Luis Obispo, CA 934011184459273
  25. Stacey CaseAlturas, CA 961011598445561
  26. Rhonda Casey GoinsRiverside, CA 925031235635582
  27. Cassandra CasillasVisalia, CA 932911285468876
  28. Leonor CasillasSan Diego, CA 921081376082255
  29. Vincent CasillasPerris, CA 925711124890280
  30. Angie CastanedaReseda, CA 913351720662927
  31. Carlos CastanedaRiverside, CA 925031215828199
  32. Ernest Castaneda, NAIndio, CA 922011124901202
  33. Martha CastanedaSan Jose, CA 951121225166713
  34. Tania CastanedaChula Vista, CA 919111003389743
  35. Marine CastanonNational City, CA 919501881377398
  36. Nykole CastellanosSan Francisco, CA 941121336963107
  37. Samantha CastellonBakersfield, CA 933011134752322
  38. Allison CastilloPalmdale, CA 935501154272581
  39. Amber CastilloVentura, CA 930031093524233
  40. Ana CastilloSan Diego, CA 921101891634705
  41. Denise CastilloLancaster, CA 935341306128871
  42. Isaac CastilloSanta Ana, CA 927051417726514
  43. Kendra CastilloStockton, CA 952021316624323
  44. Marinah CastilloRiverside, CA 925061629787023
  45. Mayra CastilloSanta Cruz, CA 950621831810126
  46. Miya CastilloSanta Barbara, CA 931051588031611
  47. Nevie CastilloHayward, CA 945411942067178
  48. Ruben CastilloPacoima, CA 913311932483914
  49. Timothy Castillo, PSSTemecula, CA 925911346082062
  50. Sara Castillo AlfaroSan Bernardino, CA 924041417690199

Source: CMS NPPES, primary taxonomy 175T00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 13 of 50 per resident

  1. Michigan16.8
  2. Wyoming15.4
  3. Utah13.7
  4. California11.6
  5. Idaho11.2
  6. District of Columbia11.0
  7. 50 states and D.C.9.5

Source: CMS NPPES, primary taxonomy 175T00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

0.0% of these records appear in a Medicare file, against under 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. California0.0%
  2. United States0.0%

Peer Specialist records in California, measured

  • In a Medicare file0 of 4,528 · 0.0% here, under 0.1% nationally
  • In the CMS Doctors and Clinicians file0 · 0.0% here, under 0.1% nationally
  • Not updated in five years or more660 · 14.6% here, 26.6% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 175T00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

4,528 NPPES records list peer specialist (175T00000X) as their primary taxonomy with a practice address in California: 11.6 per 100,000 residents against 9.5 nationally (50 states and D.C.). San Diego has 384 of them (8%).

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. Oklahoma5,197
  2. Oregon3,348
  3. Ohio3,048
  4. Washington2,628

States with a similar rate per 100,000

  1. Idaho11.2
  2. District of Columbia11.0
  3. Colorado10.6
  4. Utah13.7

The largest states

  1. Oklahoma5,197
  2. Oregon3,348
  3. Ohio3,048
  4. Washington2,628
  5. Kentucky1,942

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.