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 368 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. Benjamin OkoloInglewood, CA 903011003054974
  2. Martin OkonCarson, CA 907461063744316
  3. Benneth OkorieInglewood, CA 903011548488257
  4. Sunday Okoro, COUNSELORCompton, CA 902211285958710
  5. Gregory OkoyeLong Beach, CA 908071225331705
  6. Emmanuel OkudoLos Angeles, CA 900471134347859
  7. Emanuel OlagueBloomington, CA 923161558551945
  8. Maribel Olague, COUNSELORLos Angeles, CA 900441770742983
  9. Lisa Olagues, BHS IIIRancho Cucamonga, CA 917301821288218
  10. Damilola OlaifaChico, CA 959261174287502
  11. Virginia OlaldeBloomington, CA 923161053884841
  12. Abraham OlanLos Angeles, CA 900311124341391
  13. Mayra Olascuaga, R1328541118El Monte, CA 917321831669118
  14. Samuel OlatunjiLake View Terrace, CA 913421629549126
  15. Melissa OlazabalBerkeley, CA 947041558515916
  16. Chanel Olea CorvinoSan Marcos, CA 920691063097632
  17. Cassandra OlearyEl Cajon, CA 920201447559299
  18. Robin OlesenBerkeley, CA 947041982039269
  19. Paul OlguinRiverside, CA 925081578188280
  20. Richard OlguinCompton, CA 902211619349289
  21. Eduardo Olguin Gonzalez, SUDRCLong Beach, CA 908061730899873
  22. Larry OliffOrange, CA 928681215397351
  23. Abby OlinGrass Valley, CA 959451528325727
  24. Christopher Oliva, SUDRCPasadena, CA 911071346939600
  25. Crystal OlivaBakersfield, CA 933051245643261
  26. Danna OlivaCulver City, CA 902321528500493
  27. Flora OlivaSouth San Francisco, CA 940801902217425
  28. Johnathon OlivaLos Angeles, CA 900581922891381
  29. Abel Olivares, MS, CADCIIFresno, CA 937021770709396
  30. Fatima OlivaresSanta Ana, CA 927011609562834
  31. Misty OlivaresHesperia, CA 923451023691680
  32. Monica OlivaresLos Angeles, CA 900221821477332
  33. Robert OlivaresFresno, CA 937261649901596
  34. Joanne Olivares-Tovar, LVNCamarillo, CA 930121750414272
  35. Richard OlivarezInglewood, CA 903011174031694
  36. Richard Olivarez, CADC IITarzana, CA 913561245482769
  37. Yvette OlivarriWhittier, CA 906041174983043
  38. Jose OlivasGalt, CA 956321124907332
  39. Leonard OlivasLong Beach, CA 908061225376767
  40. Pedro OlivasHuntington Beach, CA 926471538853551
  41. Leonel OliveiraSalinas, CA 939061558556415
  42. Mickensey OliveiraModesto, CA 953501962265041
  43. Sarah OlivenciaEast Palo Alto, CA 943031225376965
  44. Arthur OliverHayward, CA 945441740563642
  45. Christopher OliverLos Angeles, CA 900021407566789
  46. Cynthia OliverNorth Hollywood, CA 916011326522400
  47. Loraine OliverInglewood, CA 903041710174966
  48. Martin Oliver, CADC-CASModesto, CA 953501144630799
  49. Peaches OliverSacramento, CA 958231972849487
  50. Towan OliverInglewood, CA 903051710294244

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.