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 268 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. Michael KonkleFresno, CA 937061659707834
  2. Clifford KonopasekUkiah, CA 954821780457424
  3. Leron KonowieckiLos Angeles, CA 900041942063151
  4. Krystle KontoesOrange, CA 928681659947596
  5. Robert KontoffAtascadero, CA 934221780999813
  6. Marilyn KooLong Beach, CA 908131700454709
  7. Bettie Koontz, CAS-ICovina, CA 917221366826836
  8. Nicole KoontzLos Angeles, CA 900141336584903
  9. Stephanie KoontzLong Beach, CA 908071104650506
  10. Deborah Koosed, RADTWoodland Hills, CA 913671588487672
  11. Sydonie KopelsSan Diego, CA 921081932064409
  12. Lee KoplinOntario, CA 917621487325056
  13. Daniel KoppSan Jose, CA 951281700133212
  14. Madison Kopp, RADTWoodland Hills, CA 913671760266944
  15. Nicole KoprekEl Sobrante, CA 948031245690627
  16. Jonathan KorbelakTarzana, CA 913561700591351
  17. Natalia KordonskyCanoga Park, CA 913031942489109
  18. Jason KoreskiSan Diego, CA 921021447079413
  19. Rosalynn KornakLos Angeles, CA 900341528906567
  20. Terrell KornegayLong Beach, CA 908021689981128
  21. James KornerSan Pedro, CA 907311871018291
  22. Hershel KorngutSherman Oaks, CA 914231396280087
  23. Stephen KorniejSan Francisco, CA 941021710456504
  24. Brianne KortaRiverside, CA 925011689112161
  25. Darlene Korta, RADT 1Riverside, CA 925011063992311
  26. Ronald Korwald, ADDICTIONOLOGISTBelmont, CA 940021275769879
  27. Natasha KoscakSan Francisco, CA 941031265286892
  28. Karen Kosek, RRWCitrus Heights, CA 956211285915868
  29. Stephanie Koski, CADC-II, ICADCSacramento, CA 958111831505932
  30. Ana KoskinarisRichmond, CA 948041619814860
  31. Jennie Kosko, MSW SOCIAL WORK INTELos Angeles, CA 900481962953133
  32. Martha KossuthSanta Fe Springs, CA 906701174240881
  33. Jessica KostelicSan Rafael, CA 949011194260877
  34. Noele KostelicSan Francisco, CA 941021023304433
  35. Athena KostickSanta Rosa, CA 954031033744636
  36. Marcelle KotchapLos Angeles, CA 900341851164297
  37. Teresa KothradeAnaheim, CA 928011780407478
  38. Anne KotynskiOxnard, CA 930331588979280
  39. Marena KoukisSanta Rosa, CA 954011568617447
  40. Savan KourmStockton, CA 952101215067228
  41. Audra KourosmehrPasadena, CA 911041700570363
  42. Craig KouryHerald, CA 956381811138100
  43. Hisaka KouzuRichmond, CA 948041821336009
  44. Hans Kowoll, CADCIIIndio, CA 922011457981623
  45. Stephen KozelGrass Valley, CA 959451295550911
  46. Chanalissa KozelchikSun Valley, CA 913521356908016
  47. Mary Koziorowski, CADC IISan Diego, CA 921101154602530
  48. Aaron KraemerSan Francisco, CA 941031437960960
  49. Leanne KraftLemon Grove, CA 919451972110070
  50. Pamela KrahenbuhlOxnard, CA 930331922822360

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.