NPPES file of Aug 9, 2026

Addiction (Substance Use Disorder) Counselor in California

27,741 NPPES records list addiction (substance use disorder) counselor with a practice address in California, 71 per 100,000 residents, the 4th highest rate of 51. Los Angeles and Fresno have the most; each record links to the provider's NPI and the California license search. Page 127 of 555.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 101YA0400X · method

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

Los Angeles has the most, 2,101

  1. Los Angeles2,101
  2. Fresno1,231
  3. Sacramento1,187
  4. San Diego1,015
  5. San Francisco839

Addiction (Substance Use Disorder) Counselor records in California

  1. Evelina DiazFresno, CA 937261841469913
  2. Francisco DiazCulver City, CA 902321518305424
  3. Gabriela DiazFontana, CA 923371982931929
  4. Gary DiazSan Bernardino, CA 924101700200730
  5. Genaro DiazSan Francisco, CA 941121801321674
  6. Gilbert DiazNorth Hollywood, CA 916011396260055
  7. Humberto DiazDulzura, CA 919171649123662
  8. Inez DiazPasadena, CA 911031275220725
  9. Janssen Diaz, J.D.Riverside, CA 925071720220700
  10. Jasmine DiazLancaster, CA 935341154081644
  11. Jay DiazVisalia, CA 932921356839773
  12. Jessica DiazSanta Barbara, CA 931011891381521
  13. John DiazTorrance, CA 905021366958217
  14. Jose DiazLong Beach, CA 908131851510713
  15. Kayla DiazSanta Maria, CA 934541194357731
  16. Laura DiazBaldwin Park, CA 917061619335775
  17. Luis DiazSan Bernardino, CA 924101578987236
  18. Manuel DiazLancaster, CA 935341366802217
  19. Maria Diaz, SUBSTANCE ABUSE COUNBakersfield, CA 933071841419967
  20. Maria DiazWoodland, CA 956951629248737
  21. Mariena DiazThermal, CA 922741043137094
  22. Melanie DiazChula Vista, CA 919111730746355
  23. Monique DiazMontebello, CA 906401255961900
  24. Monique DiazOxnard, CA 930361083997670
  25. Natalia DiazEl Monte, CA 917311083295976
  26. Nicole Diaz, DAC IRed Bluff, CA 960801609566520
  27. Noelle DiazBellflower, CA 907061942724588
  28. Paloma DiazLong Beach, CA 908131720208846
  29. Patricia DiazLynwood, CA 902621013688753
  30. Phillip DiazLos Angeles, CA 900131417309964
  31. Ramel DiazOceanside, CA 920551043041734
  32. Rodrigo DiazPerris, CA 925711326312034
  33. Rosa DiazLos Angeles, CA 900331619185949
  34. Sara DiazModesto, CA 953501740146547
  35. Sarah DiazSanta Fe Springs, CA 906701548925977
  36. Sergio DiazPasadena, CA 911041376499913
  37. Stephanie DiazGrover Beach, CA 934331679952303
  38. Tamara DiazLong Beach, CA 908131992925010
  39. Tedra Diaz, RADTHuntington Beach, CA 926471275400392
  40. Tiana DiazLancaster, CA 935361821688326
  41. Valerie DiazBloomington, CA 923161568267136
  42. Vivian DiazFresno, CA 937061710424791
  43. Xavier Diaz, COUNSELORFairfield, CA 945331821551466
  44. Daniela Diaz AvalosSan Diego, CA 921021417735606
  45. Felipe Diaz CurielSan Diego, CA 921231821798844
  46. Irene Diaz De LeonRiverside, CA 925031568259950
  47. Jose Diaz LopezSanta Maria, CA 934541740827674
  48. Nereyda Diaz TamyoLos Angeles, CA 900371083404735
  49. Holly Diaz-BachModesto, CA 953501649474164
  50. Jennifer DibellaEl Cajon, CA 920201003566761

Source: CMS NPPES, primary taxonomy 101YA0400X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 4 of 51 per resident

  1. Alaska135
  2. Ohio95
  3. Oregon95
  4. California71
  5. Maine61
  6. Montana61
  7. 50 states and D.C.28

Source: CMS NPPES, primary taxonomy 101YA0400X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

0.1% of these records appear in a Medicare file, against 1.0% 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. California0.1%
  2. United States1.0%

Addiction (Substance Use Disorder) Counselor records in California, measured

  • In a Medicare file26 of 27,741 · 0.1% here, 1.0% nationally
  • In the CMS Doctors and Clinicians file32 · 0.1% here, 1.7% nationally
  • Not updated in five years or more16,340 · 58.9% here, 57.4% nationally
  • Median graduation year2015 · the 32 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 101YA0400X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

27,741 NPPES records list addiction (substance use disorder) counselor (101YA0400X) as their primary taxonomy with a practice address in California: 71 per 100,000 residents against 28 nationally (50 states and D.C.). Los Angeles has 2,101 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. Ohio11,255
  2. New York5,180
  3. Washington4,416
  4. Oregon4,037

States with a similar rate per 100,000

  1. Maine61.3
  2. Montana61.0
  3. North Dakota56.8
  4. Rhode Island51.1

The largest states

  1. Ohio11,255
  2. New York5,180
  3. Washington4,416
  4. Oregon4,037
  5. North Carolina3,066

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.