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 467 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. Rachel SinopoliUpland, CA 917851982498465
  2. April SinsleyMurrieta, CA 925621316306350
  3. Lisa SinsunOxnard, CA 930361821555806
  4. Monica SinsunVentura, CA 930031326520008
  5. Stephanie SiordiaCompton, CA 902201730526609
  6. Lucille SipertSanta Monica, CA 904051619238920
  7. Quintin SipertLos Angeles, CA 900131275837544
  8. Naomi Siqueiros, RADT 1Indio, CA 922011174209621
  9. Anjolie Siracusa, CADC IOxnard, CA 930361477151744
  10. Gina Sirimarco, CADCII,Riverside, CA 925061730442328
  11. Laura Sirota, RADTFair Oaks, CA 956281245176098
  12. Kitti SisleySanta Barbara, CA 931011134254113
  13. Patrick SisnerosHanford, CA 932301568632636
  14. Rodas SiumSan Rafael, CA 949011821853581
  15. Bruno SivongxayFresno, CA 937061063982049
  16. Patrick SizemoreSanta Cruz, CA 950601932699600
  17. Chad Sjule, RACLong Beach, CA 908071073275996
  18. Mark SkaggsSanta Rosa, CA 954031265322671
  19. Sandra Skal-GerlockEscondido, CA 920261699146290
  20. Olga Skarlato, PH.D.Sylmar, CA 913421013159516
  21. Steve SkiadasCitrus Heights, CA 956101346683760
  22. April SkidmoreSanta Fe Springs, CA 906701821616905
  23. Rufus SkillernSan Francisco, CA 941101154605111
  24. Courtney SkillmanSan Diego, CA 921231922614031
  25. Charla Skinner, CADC-CASRedding, CA 960021780217497
  26. Sheila SkinnerRedlands, CA 923741659576130
  27. Sahara-Lynn Skipper, CADC ILancaster, CA 935361760240006
  28. Sandor SklarLos Angeles, CA 900361689375784
  29. Lori SkocikLemon Grove, CA 919451043878317
  30. Tima Skogberg, CAADESanta Rosa, CA 954031922218056
  31. David Skonezny, CADC-II, ICADCMission Viejo, CA 926911174029250
  32. Mark Skorich, CADC1Pasadena, CA 911031144745969
  33. Tanja Skousen, SUDRCSan Diego, CA 921131043095987
  34. Melissa SkrederstuSanta Ana, CA 927051366320905
  35. Sharon Skujins, CADC II, NCACPioneer, CA 956661346369790
  36. Robert SlackSanta Barbara, CA 931011255740841
  37. Valerie SlakoffNorth Hollywood, CA 916011285451914
  38. Tina SlaneAtascadero, CA 934221730669813
  39. Ilene Slater, BALynwood, CA 902621427180769
  40. Jeanie SlaterPleasanton, CA 945881578905774
  41. Toby SlaterRialto, CA 923761871852608
  42. Robert SlatkinVan Nuys, CA 914111437381886
  43. Charrise SlaughterHayward, CA 945411093984528
  44. Gerald SlaughterOakland, CA 946091336371103
  45. Katie Jo SlaughterEureka, CA 955011306320965
  46. Paula SlaughterPittsburg, CA 945651821293069
  47. Rebecca SlaughterPleasanton, CA 945661801059126
  48. Susan Slaughter, SUDCCRiverside, CA 925041922990340
  49. Crisfeli SlausonFresno, CA 937281760608616
  50. Frances SlawinskyScotts Valley, CA 950661932058575

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.