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 314 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. Darcy MascarenasEl Monte, CA 917331356853477
  2. Pamela MascoteVacaville, CA 956881831435940
  3. Sylvester MashaLos Angeles, CA 900081275753311
  4. Zahid MasihBanning, CA 922201114289139
  5. Masina MasinaDowney, CA 902411275154379
  6. Sophia MasinaSan Francisco, CA 941101144679986
  7. David MaslanLos Angeles, CA 900341083215602
  8. Christopher MasonOakland, CA 946031821828831
  9. Dennis MasonLucerne, CA 954581841401825
  10. Feleicia MasonTorrance, CA 905031912566076
  11. Gwendolyn Mason, CADTP #8348Stanton, CA 906801346706827
  12. Jason MasonFresno, CA 937221386949519
  13. Jeffrey Mason, CADC IIModesto, CA 953501316434319
  14. Kristel MasonSalinas, CA 939011790651388
  15. Laron MasonPasadena, CA 911031275339509
  16. Lenora Mason, SUDRCSan Pablo, CA 948061114892874
  17. Llaneli MasonSanta Ana, CA 927011174247555
  18. Nicole Mason, CATC-IIPomona, CA 917671174334114
  19. Samuel Mason, CATCSan Diego, CA 921101538288659
  20. Tracy MasonAltadena, CA 910011568341196
  21. Jennifer Masonis, CADC II ICADC A06436Studio City, CA 916041043053747
  22. Wasim MasoodLodi, CA 952421902561343
  23. Elijah MassaquoiRichmond, CA 948041689316408
  24. Brandi Massengale Cuellar, C.A.T.C.San Luis Obispo, CA 934051679841779
  25. Eugene Massey, R15825331024Los Angeles, CA 900571861212631
  26. Melissa MasseyMenlo Park, CA 940251558735894
  27. Monty MassieSanta Rosa, CA 954031619355575
  28. Natasha MassieSan Leandro, CA 945781194471136
  29. Orlando MassingaleBerkeley, CA 947021598947988
  30. Teresa MassingillClearlake, CA 954221154748820
  31. Kimberly MasterfieldRiverside, CA 925011528259223
  32. Alexis MastersAtascadero, CA 934221225780117
  33. Megan MastersLompoc, CA 934361932088267
  34. Steven MastersSherman Oaks, CA 914031316630445
  35. Steven Masters, MSHS CATC CSC BCPSan Diego, CA 921101740563097
  36. Stephanie MastersonMojave, CA 935011740941160
  37. Gina Mastrangelo, C.A.T.C.Glendora, CA 917401316249618
  38. Amalia Mastrodomenico, AODCVan Nuys, CA 914011134376882
  39. Lesley MasudaSanta Barbara, CA 931011598891715
  40. Sandra MasushigeLos Angeles, CA 900031154997898
  41. Ana MataSanta Fe Springs, CA 906701467824151
  42. Doreen MataSanta Ana, CA 927061013354901
  43. Edward MataFrench Camp, CA 952311265655146
  44. Mark MataSanta Ana, CA 927031922707751
  45. Melissa MataSalinas, CA 939011932477486
  46. Mireya MataEast Palo Alto, CA 943031861211450
  47. Rodolfo MataDowney, CA 902411780441857
  48. Victoria MataFowler, CA 936251497479646
  49. Amanda Mata-AdameSimi Valley, CA 930651710710082
  50. Lisa Mata-UribeLos Angeles, CA 900131710798129

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.