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 275 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. Austin Larsen, ASWChico, CA 959261528518107
  2. Brandy LarsenBakersfield, CA 933011033522511
  3. Jennifer LarsenSan Diego, CA 921021063982015
  4. Keith Larsen, CAADE-RPittsburg, CA 945651063916872
  5. Lora Larsen, CADC-II, LAADCGrass Valley, CA 959451114278322
  6. Christine LarsonLos Alamitos, CA 907201851835276
  7. Karin Larson, RADT 1Berkeley, CA 947091588397657
  8. Lori LarsonModesto, CA 953501255687190
  9. Margaret LarsonFresno, CA 937061508021551
  10. Mattie LarsonLos Angeles, CA 900341477243731
  11. Melissa Larson, CADAC-CASChula Vista, CA 919111578857876
  12. Victor Larson, MSFresno, CA 937261154564318
  13. William LarsonSan Francisco, CA 941171467685156
  14. Katelin LarueOroville, CA 959651396279774
  15. Diane Larue03Fresno, CA 937061437370194
  16. Gordon LasagnaLancaster, CA 935341629354378
  17. Diane LasaterVan Nuys, CA 914111578806428
  18. Mark Lashley, ADDICTION SPECIALISTAuburn, CA 956031376729574
  19. Stephen LasickaTarzana, CA 913561336352301
  20. Victor Lasley, RCBlythe, CA 922251649199407
  21. Tracy LasseterVisalia, CA 932771588028179
  22. Frederic LastarView Park, CA 900081407542376
  23. John LasterTorrance, CA 905031821795444
  24. Natasha LatSan Rafael, CA 949011891541132
  25. Nick LatchawSanta Rosa, CA 954071518329820
  26. Giselle LateurBurlingame, CA 940101730953050
  27. Blaine Latham, R1582051024Los Angeles, CA 900571578454120
  28. Elizabeth Latham, MFTSanta Barbara, CA 931011538203039
  29. Mallie LathamVallejo, CA 945901881879534
  30. Yvonne LathersSan Francisco, CA 941021306357421
  31. Tonya LathropYuba City, CA 959911316169022
  32. Nat Latifi, RAD-TSanta Monica, CA 904041750007951
  33. Dawn Latimer, RASSanta Maria, CA 934541447386735
  34. Suzanne LatommeRiverside, CA 925041437734779
  35. Michael LatorracaLodi, CA 952421205305968
  36. Alexandra LatorreSan Bernardino, CA 924101336697960
  37. Marisol Latorre DeweeseLos Angeles, CA 900591053058909
  38. Kenneth Laughton RomeroLincoln Heights, CA 900311437002508
  39. Rachael Laureles, SUD COUNSELORSacramento, CA 958261124738489
  40. Mary Laurent, M.A.Colton, CA 923241881819159
  41. Derek LauritzenSan Luis Obispo, CA 934011619735503
  42. Vincent Lauro, CADC-II ICADCTorrance, CA 905051265914188
  43. Eric LautzWalnut Creek, CA 945981306562897
  44. John LauxSimi Valley, CA 930651366052656
  45. Tina Lavado, SUDCCVictorville, CA 923921700762432
  46. Adam LavalleeLancaster, CA 935351205513140
  47. Diane Lavely, LCSW BCD MSWACPalm Springs, CA 922621619079746
  48. Lonni LavenLucerne, CA 954581871034611
  49. Maria Lavigne, RAD-TSan Bernardino, CA 924101477387769
  50. Michael LavigneOrange, CA 928681013567635

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.