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 306 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. Sean MarkhamLos Angeles, CA 900131316762115
  2. Jeffrey MarkleyPasadena, CA 911031194542639
  3. Jonathan Markley, SUDRC126473Santa Maria, CA 934581770407199
  4. Korinna MarkoeChico, CA 959261770814741
  5. Lisa MarkouizosLos Alamitos, CA 907201457987190
  6. Jennifer MarkovichSanta Rosa, CA 954031386845436
  7. Kristina MarkovichSanta Ana, CA 927011336738798
  8. Janet MarkowitzLos Angeles, CA 900341457024937
  9. Chanita MarksLynwood, CA 902621598336000
  10. Dustin MarksCampo, CA 919061730829532
  11. Dylan MarksTrabuco Canyon, CA 926791760117758
  12. Jeanette MarksWest Covina, CA 917911447659453
  13. Joseph MarksDesert Hot Springs, CA 922401821694332
  14. Martin Marks, RADT ISan Diego, CA 921021689248809
  15. Melody MarksBakersfield, CA 933041093832594
  16. Paige Marks, CADC ILos Alamitos, CA 907201124699335
  17. Lidia Marks-Bratten, CADC-CASCarmichael, CA 956081104452762
  18. Ruthann MarkusenCulver City, CA 902321083821920
  19. Natalie Markwell, RADT 1Escondido, CA 920261003596867
  20. Agnes Marlang, RADTSacramento, CA 958261891388039
  21. Emily MarlenPomona, CA 917391508386806
  22. Brian MarlingBakersfield, CA 933071255066296
  23. Onastacia MarlowModesto, CA 953501457865602
  24. Marshall MarmolejoBloomington, CA 923161073947685
  25. Rudy MarmolejoPasadena, CA 911041295208908
  26. Sergio MarmolejoLos Angeles, CA 900311295656650
  27. Cory MarohnicSanta Ana, CA 927031578129219
  28. Mark MaroltRichmond, CA 948041255574596
  29. John MaroneSan Diego, CA 921021942674544
  30. Trevor MaroshekEl Cajon, CA 920201003673575
  31. Jennifer MarquechoRiverside, CA 925011720544877
  32. Alfred Marquez, CATCSanta Ana, CA 927011598852923
  33. Alicia MarquezChula Vista, CA 919101336566058
  34. Alicia MarquezChula Vista, CA 919111144460056
  35. Alicia Marquez, RADT IBarstow, CA 923111316607088
  36. Beatriz MarquezTracy, CA 953761912193483
  37. Betty MarquezEl Cajon, CA 920201396519476
  38. Candido MarquezKing City, CA 939301962112367
  39. Daniel Marquez, CADC IISacramento, CA 958231245659234
  40. David MarquezSan Jose, CA 951261124689716
  41. Edward MarquezLong Beach, CA 908131376762203
  42. Erin Marquez, BSWFresno, CA 937051629590427
  43. Ernest MarquezSanta Ana, CA 927051902406846
  44. Estela MarquezLos Angeles, CA 900591316305493
  45. Estella MarquezSan Diego, CA 921111629230560
  46. Fernando MarquezChula Vista, CA 919141619171303
  47. Harvey MarquezLa Habra, CA 906311275065625
  48. James Marquez, MACosta Mesa, CA 926261184244121
  49. Jamie MarquezLaguna Hills, CA 926531104613710
  50. Jennifierann MarquezSan Diego, CA 921101578122370

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.