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 361 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. Linda NguyenStockton, CA 952061558886507
  2. Linh NguyenEscondido, CA 920251922835453
  3. Meuy-Nai NguyenWoodland, CA 956951770347395
  4. Paul NguyenSan Francisco, CA 941151538977889
  5. Simon NguyenBloomington, CA 923161518852284
  6. Thierry NguyenWestminster, CA 926831982064531
  7. Trieu Vy NguyenSan Francisco, CA 941031770025835
  8. Uyen-Ly Nguyen, M.S.San Jose, CA 951481073863502
  9. Vinh NguyenSan Francisco, CA 941021811576457
  10. Xuan NguyenStockton, CA 952021497978084
  11. Charles NgwudileLong Beach, CA 908071861669731
  12. Daniel NiacanLos Angeles, CA 900371619823978
  13. Shae NiapasModesto, CA 953511821856147
  14. Elizabeth NiarhosOakland, CA 946051619447455
  15. Richelle NiceRedwood City, CA 940631679272249
  16. Jamees NicholasLos Angeles, CA 900021720857931
  17. Jennifer Nicholas, CADC IISan Jose, CA 951381356612915
  18. Lorie NicholasApple Valley, CA 923071235645557
  19. Ronnie NicholasSusanville, CA 961301417499047
  20. Brooke NicholsSanta Rosa, CA 954031033535364
  21. Christopher Nichols, RADTSan Rafael, CA 949011629842166
  22. Elizabeth Nichols, M.S.,CATCSan Diego, CA 921101982984753
  23. Galyn Nichols, CATC, CSCFresno, CA 937261972951457
  24. Joshua NicholsLos Angeles, CA 900041255140786
  25. Kevin NicholsSan Diego, CA 921101144885898
  26. Michael Nichols, RADTStockton, CA 952051326837626
  27. Rachel Nichols, R1550690224Fresno, CA 937211811731789
  28. Rodney NicholsLos Angeles, CA 900111033435938
  29. Tracy NicholsLos Angeles, CA 900131659008191
  30. Travis NicholsSacramento, CA 958161003431495
  31. Carol Nicholson, CADC-CASSonora, CA 953701497221899
  32. Christina NicholsonSan Pablo, CA 948061982162756
  33. Jodee NicholsonBellflower, CA 907061760841761
  34. Katherine NicholsonSacramento, CA 958201952651358
  35. Kelley NicholsonModesto, CA 953501962059832
  36. Mariane Nicholson, SUDRC 17478Anaheim, CA 928051548026933
  37. Megan NicholsonSan Francisco, CA 941031568055861
  38. Michael NicholsonTarzana, CA 913561346020286
  39. Charles NickellSan Fernando, CA 913401124871181
  40. Raevin Nickerson, RAD-TFairfield, CA 945331487438594
  41. Jeanette NicolasSylmar, CA 913421043539612
  42. Josefina Nicolas, CADC-CASNapa, CA 945581285070698
  43. Kevin NicolauLong Beach, CA 908041508120536
  44. Michele Nicolay, CSAC, CADC IISan Francisco, CA 941021225175185
  45. Jaye NicoleRiverside, CA 925011134863202
  46. Dylan NicoletteSanta Ana, CA 927071144903832
  47. James NicolisNapa, CA 945591215132014
  48. Arthur NidesLos Angeles, CA 900331801401054
  49. Edward NieblasEl Cajon, CA 920201700552700
  50. Alex NiedrauerLompoc, CA 934361639870876

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.