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 315 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. John Mataka, RASCeres, CA 953071821128661
  2. James Matas, SUDCCStockton, CA 952051639743974
  3. Diamond MatautiaSan Mateo, CA 944011497228373
  4. Nicole MatchaBerkeley, CA 947041134324304
  5. Jenna MateaYreka, CA 960971013770445
  6. Khalil Mateen-FaruqSan Diego, CA 921051811317100
  7. Adam MathenySacramento, CA 958201750790630
  8. Ashley Matheny, COUNSELORFairfield, CA 945331538639562
  9. Julie MathenyPomona, CA 917671558538413
  10. Sherry Mathers, BHCW II / CADC-CASSusanville, CA 961301780719096
  11. Amanda MathesRoseville, CA 956611669859088
  12. Donna MathesSanta Barbara, CA 931011154586931
  13. Robert MathesOceanside, CA 920541548479868
  14. Amy MathesonFresno, CA 937061164709051
  15. Jared Matheson, RADT1Richmond, CA 948041578443347
  16. Brett MathewsMarysville, CA 959011467385427
  17. Bryan MathewsSanta Monica, CA 904041295566180
  18. Dana MathewsOntario, CA 917621760799233
  19. David Mathews, LAADCMontebello, CA 906401528515731
  20. Debra Mathews, RADTSacramento, CA 958261952865602
  21. Elizabeth MathewsLemon Grove, CA 919451538640073
  22. John Mathews, RRWSacramento, CA 958221457798894
  23. Lauren Mathews, CADCSan Bernardino, CA 924081699290080
  24. Marina Mathews, CADCIIYuba City, CA 959911427470491
  25. Tina Ann Mathews, SUDCC IVCardiff, CA 920071902070972
  26. Lynn MathiasFresno, CA 937051164679981
  27. Robert MathiasRoseville, CA 956611972421915
  28. Jaqueline Mathiesen, SUD COUNSELORSan Mateo, CA 944031972360899
  29. Bryan MathisSanta Rosa, CA 954091831403286
  30. Janine MathisCompton, CA 902211801298922
  31. Latonya MathisTorrance, CA 905041275736498
  32. Norman MathisSan Francisco, CA 941241548305485
  33. Danita Mathis-JohnsonSan Jose, CA 951381770609513
  34. Christina MatiasSanta Ana, CA 927031760316491
  35. Danielle Matiuk, R.A.S.Hayward, CA 945441801228820
  36. Dennis Matlock, RS1503Indio, CA 922011457490088
  37. Linda MatlockSacramento, CA 958231134305451
  38. Carlos MatosWoodland, CA 956951154445971
  39. Levi MatosRiverside, CA 925011932808565
  40. Rafael Matos, CATC-IChula Vista, CA 919101750935961
  41. Jonathon MatousekGrass Valley, CA 959451508549494
  42. Janice MatreRedwood City, CA 940631841628773
  43. Mariko MatsudaChula Vista, CA 919111386155695
  44. Monica Matte, RADTQuartz Hill, CA 935361679230056
  45. Jill MatternUkiah, CA 954821669514253
  46. Yvonne MatternVista, CA 920831841773579
  47. Lisa Mattey, RADT 1San Marcos, CA 920691891225355
  48. Aaron MatthewsBerkeley, CA 947041770926370
  49. Aida MatthewsModesto, CA 953501609489509
  50. Antoine MatthewsStockton, CA 952031508138975

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.