NPPES file of Aug 9, 2026

Behavior Analyst in California

20,348 NPPES records list behavior analyst with a practice address in California, 52 per 100,000 residents, the 5th highest rate of 51. Costa Mesa and San Diego have the most; each record links to the provider's NPI and the California license search. Page 224 of 407.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 103K00000X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Costa Mesa has the most, 1,239

  1. Costa Mesa1,239
  2. San Diego1,157
  3. Sacramento597
  4. Los Angeles534
  5. Woodland Hills509

Behavior Analyst records in California

  1. Evany MarinCovina, CA 917241437636644
  2. Olivia MarinBakersfield, CA 933091093607319
  3. Michelle Marin AlvarezCosta Mesa, CA 926261194589168
  4. Vanesa Marin CalderonWoodland Hills, CA 913671467197079
  5. Johana Marin CruzGardena, CA 902481619742533
  6. Herman MarineroSherman Oaks, CA 914231457856569
  7. Angie MariscalSanta Cruz, CA 950621346794658
  8. Julie MariscalMadera, CA 936371366091514
  9. Amber Mark, BCBAPasadena, CA 911061922540665
  10. Catherine MarkleWoodland Hills, CA 913671013560945
  11. Tracy Markov, M.A., BCBACarlsbad, CA 920081548580616
  12. Everett MarksCosta Mesa, CA 926261548950496
  13. Kayla MarksSalida, CA 953681669963757
  14. McKenna MarlowSan Diego, CA 921011659040707
  15. Diana Marmol, BCBAGlendale, CA 912061063286987
  16. Ashley MarmolejoRiverside, CA 925031740961861
  17. Lucia MarmolejoSanta Fe Springs, CA 906701184271876
  18. Nicholas MarmolejoGardena, CA 902481760311336
  19. Adeline MaronAntioch, CA 945091093297509
  20. Frank Marone, PHDSan Francisco, CA 941221215162805
  21. Yancy MaroneyTemecula, CA 925901538639349
  22. Noemi MarqezEncino, CA 914361417720988
  23. Mary Marquardt, MA BCBARoseville, CA 956781194115485
  24. Adara MarquezDesert Hot Springs, CA 922401467186536
  25. Alexandra MarquezPalo Alto, CA 943061831689272
  26. Alexis Marquez, BAWhittier, CA 906021083103147
  27. Andres MarquezVan Nuys, CA 914061376015842
  28. Anna MarquezSanta Clarita, CA 913551922509678
  29. Brissa MarquezEl Centro, CA 922431184326167
  30. Dylan MarquezTorrance, CA 905051679116594
  31. Erika Marquez, BCBASanta Fe Spgs, CA 906701699247148
  32. Genesis MarquezNorthridge, CA 913241548102668
  33. Ivette MarquezChula Vista, CA 919141073986816
  34. Jazzlen MarquezOntario, CA 917641649006099
  35. Julia MarquezLos Angeles, CA 900101265050579
  36. Julissa MarquezFresno, CA 937051194644583
  37. Kelly MarquezHayward, CA 945421205485901
  38. Liliana MarquezCommerce, CA 900401043087422
  39. Lizeth MarquezVacaville, CA 956871356804785
  40. Lizzette MarquezHayward, CA 945451225667884
  41. Mario MarquezHayward, CA 945451770176554
  42. Marisol MarquezSan Ramon, CA 945831669832390
  43. Marissa Marquez, BCBAPetaluma, CA 949541710867692
  44. Marta Marquez, BCBAGlendale, CA 912031699031682
  45. Megan MarquezBakersfield, CA 933091851869390
  46. Mireya Marquez, BCBALong Beach, CA 908021114803533
  47. Nancy MarquezFresno, CA 937111740780568
  48. Robert Marquez, BCBAOntario, CA 917641366971095
  49. Roberta MarquezLos Angeles, CA 900221831409655
  50. Rony MarquezWhittier, CA 906061679333769

Source: CMS NPPES, primary taxonomy 103K00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 5 of 51 per resident

  1. Massachusetts67
  2. Hawaii63
  3. Florida60
  4. California52
  5. New Mexico47
  6. Oklahoma44
  7. 50 states and D.C.32

Source: CMS NPPES, primary taxonomy 103K00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

under 0.1% of these records appear in a Medicare file, against 0.1% 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. California0.0%
  2. United States0.1%

Behavior Analyst records in California, measured

  • In a Medicare file5 of 20,348 · under 0.1% here, 0.1% nationally
  • In the CMS Doctors and Clinicians file14 · 0.1% here, 0.1% nationally
  • Not updated in five years or more10,235 · 50.3% here, 47.0% nationally
  • Median graduation year2017 · the 14 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 103K00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

20,348 NPPES records list behavior analyst (103K00000X) as their primary taxonomy with a practice address in California: 52 per 100,000 residents against 32 nationally (50 states and D.C.). Costa Mesa has 1,239 of them (6%).

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. Florida13,565
  2. Texas5,837
  3. New York5,183
  4. Massachusetts4,718

States with a similar rate per 100,000

  1. New Mexico47.5
  2. Oklahoma44.0
  3. New Hampshire41.8
  4. Hawaii63.5

The largest states

  1. Florida13,565
  2. Texas5,837
  3. New York5,183
  4. Massachusetts4,718
  5. Nevada4,540

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.