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 230 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. Amy MaslukSan Leandro, CA 945781093069247
  2. Diana Mason, BCBASan Diego, CA 921021285172858
  3. Jessica MasonSan Diego, CA 921211598540874
  4. Makenna MasonSacramento, CA 958321851861579
  5. Rita Mason, BCBAPasadena, CA 911071730614397
  6. Tajiri Mason, CNAPittsburg, CA 945651063905586
  7. Omar Massoud, MA, BCBASan Leandro, CA 945771043727381
  8. Ashley Mastromauro, BCBALaguna Hills, CA 926531033989660
  9. Shilo Masyk-JacksonSacramento, CA 958261114498193
  10. Alexandra MataSalinas, CA 939011639753155
  11. Allison Mata, BCBAOntario, CA 917611760918643
  12. Hamith MataEncino, CA 913161083045199
  13. Jessica MataSan Bernardino, CA 924101225738552
  14. Julio Mata, BCBALos Angeles, CA 900161437710381
  15. Nicollette MataMadera, CA 936371427682293
  16. Roxanna MataSan Diego, CA 921201497588222
  17. Gabriela Mata-BarraganCosta Mesa, CA 926261326685355
  18. Ashley Matamua, M.A., BCBASan Diego, CA 921271639688310
  19. Katia MatarWest Covina, CA 917911528529013
  20. Jamie MatasciModesto, CA 953551912514530
  21. Bea Karenina MateoSan Jose, CA 951361063903128
  22. Gilbert Delm MateoVallejo, CA 945891629553292
  23. Armando MateosMilpitas, CA 950351861848558
  24. Tania MateosThousand Oaks, CA 913601679256309
  25. Lizeth Mateos AcevedoCosta Mesa, CA 926261295623247
  26. Cheyenne MateusSan Jose, CA 951121003444688
  27. Audrey MathasMonrovia, CA 910161326893306
  28. Mary Mathenia, BCBAConcord, CA 945201225558513
  29. Samantha Mathew, BCBAWoodland Hills, CA 913641801330766
  30. Selamawit Mathews, M.S., BCBAConcord, CA 945201609477140
  31. Elisabeth Mathewson, MA, BCBAEl Dorado Hills, CA 957621063884948
  32. Mallory Mathias, B.C.B.AVentura, CA 930031558608778
  33. Tyler Mathiesen, BCBASacramento, CA 958251275993370
  34. Michelle MathieuTorrance, CA 905021730797689
  35. Chadae MathisRancho Cucamonga, CA 917301407724222
  36. Paris Mathis, BSSan Diego, CA 921051881360980
  37. Angelica Matias-RodriguezEureka, CA 955011699343962
  38. Aesha Matiee, M.S BCBAWalnut Creek, CA 945961558869362
  39. Ana Vanessa MatillanoAnaheim, CA 928061871094029
  40. Vittorio Matinata, PSY.D., BCBAWoodland Hills, CA 913671679990345
  41. Laura MatlockBrentwood, CA 945131235611633
  42. Brandon Matlock-PettusBakersfield, CA 933091467133892
  43. Hitomi MatobaRiverside, CA 925011811456908
  44. Danielle MatosDublin, CA 945681528526696
  45. Sydney MatsudaTorrance, CA 905051902394604
  46. Natalie Matsumoto, BEHAVIOR ANALYSTVan Nuys, CA 914061265927891
  47. Robyn Matsumoto, BCBASacramento, CA 958261457749442
  48. Kimberly Mattatall, BCBALaguna Hills, CA 926531992108393
  49. William Matthew, PHDBakersfield, CA 933141407252190
  50. Bakari MatthewsAlameda, CA 945011528539731

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.