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 541 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. Ryan Williams, SUDC- IIBakersfield, CA 933071922479013
  2. Saumal Williams, 16885-RACLos Angeles, CA 900571194543488
  3. Scott Williams, CADC IISan Pedro, CA 907311659807543
  4. Shanael WilliamsOntario, CA 917621730558057
  5. Shanon WilliamsLos Angeles, CA 900471649584392
  6. Shaquille WilliamsRedding, CA 960021831888544
  7. Shawn Williams, CADACSacramento, CA 958321598947723
  8. Susan WilliamsSanta Maria, CA 934541184089393
  9. Tamisha WilliamsCeres, CA 953071598599508
  10. Tari Williams, C.A.S.Oceanside, CA 920561689862716
  11. Tawny Williams, RADTOakland, CA 946031255833042
  12. Teasha Williams, CADCIISacramento, CA 958231376128025
  13. Ted WilliamsStockton, CA 952101194954123
  14. Tenaya WilliamsBakersfield, CA 933011023741162
  15. Teresa WilliamsSan Jose, CA 951261811234859
  16. Terron WilliamsInglewood, CA 903011710743638
  17. Tina WilliamsTarzana, CA 913561366291783
  18. Torre WilliamsLong Beach, CA 908131437316486
  19. Traci WilliamsOrange, CA 928681609269331
  20. Trisha WilliamsStockton, CA 952061417493339
  21. Ulrika WilliamsRichmond, CA 948041932248168
  22. Ursula WilliamsLong Beach, CA 908031578147112
  23. Venae WilliamsFresno, CA 937271336321991
  24. Wilbur WilliamsInglewood, CA 903031427314681
  25. William Williams, C.A.T.C.Fresno, CA 937061639459001
  26. Wilson WilliamsLos Angeles, CA 900441134360498
  27. Yvonne WilliamsSan Diego, CA 921041750876058
  28. Zachary WilliamsAtascadero, CA 934221770100273
  29. Beverly Williams-DavisSan Leandro, CA 945781356552756
  30. Doretha Williams-Flournoy, N/ARoseville, CA 956611588820948
  31. Emily Williams-RiversModesto, CA 953501396236303
  32. Amber WilliamsonUpper Lake, CA 954851508683343
  33. Darrell WilliamsonSan Diego, CA 921151912115213
  34. Daunte WilliamsonEl Cajon, CA 920201740452994
  35. Ernest WilliamsonStockton, CA 952021649782954
  36. Garry WilliamsonOakland, CA 946061194911818
  37. James WilliamsonSouth San Francisco, CA 940801174934012
  38. Michael Williamson, RADTLos Gatos, CA 950321487401154
  39. Coy WilliardLos Angeles, CA 900041285568808
  40. Alexandria WillinghamChico, CA 959261629658497
  41. Angela WillisLos Angeles, CA 900161356569008
  42. April Willis, RASHayward, CA 945441376371047
  43. Britney Willis, RADT SUBSTASacramento, CA 958261285220277
  44. Christopher Willis, RASBakersfield, CA 933091063540334
  45. Elizabeth WillisLemon Grove, CA 919451104453919
  46. Jinga WillisGorman, CA 932431528836012
  47. Leah WillisSan Pedro, CA 907311487116752
  48. Lynette WillisRichmond, CA 948041609053776
  49. Matthew WillisGrass Valley, CA 959451104275270
  50. Paul Willis, RADTIAntioch, CA 945091811861040

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.