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 273 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. Darwin OrtizSanta Clarita, CA 913551962189357
  2. Destiney OrtizSan Dimas, CA 917731598323818
  3. Erika Ortiz, M.S, BCBAMission Hills, CA 913451821531724
  4. Gabrielle OrtizSan Francisco, CA 941031598219065
  5. Gema OrtizGilroy, CA 950201922584945
  6. Guadalupe OrtizGilroy, CA 950201194360495
  7. Heaven OrtizCosta Mesa, CA 926261265258743
  8. Hemma OrtizMenifee, CA 925851316890890
  9. Jesse OrtizCosta Mesa, CA 926261770985145
  10. Jessica OrtizHesperia, CA 923451467311852
  11. Joanna OrtizSan Diego, CA 921111629579040
  12. Karin OrtizValencia, CA 913551922430206
  13. Kelsey OrtizOrange, CA 928651730653098
  14. Kiara OrtizAlameda, CA 945011285192021
  15. Kyle OrtizRoseville, CA 957471891253753
  16. Lianne OrtizRoseville, CA 956781477051159
  17. Manuel OrtizConcord, CA 945201659190825
  18. Melissa OrtizCosta Mesa, CA 926261609467729
  19. Natasha OrtizEl Segundo, CA 902451073431086
  20. Nicolas Ortiz, BCBAPalo Alto, CA 943011942784038
  21. Orlando Ortiz, NONEGardena, CA 902481972234698
  22. Samantha Ortiz, BCBACovina, CA 917241104497064
  23. Samantha OrtizWildomar, CA 925951275400830
  24. Sarochinee OrtizVacaville, CA 956871073322541
  25. Talisa OrtizEncino, CA 913161952925364
  26. Tatiyana OrtizPalmdale, CA 935501649879594
  27. Valerie Ortiz, BCBAMonrovia, CA 910161427463892
  28. Vanessa OrtizRoyal Oaks, CA 950761639669740
  29. Victor OrtizCorona, CA 928791871200832
  30. Xierra OrtizSan Diego, CA 921101578140851
  31. Yasmin OrtizCosta Mesa, CA 926261376183269
  32. Alison Ortiz AndradeCosta Mesa, CA 926261336840586
  33. Armando Ortiz JrWoodland Hills, CA 913671073277505
  34. Julio Ortiz LopezAlameda, CA 945011821759077
  35. Stephanie Ortiz MurilloVentura, CA 930031679153282
  36. Monica Ortiz RoblesTustin, CA 927801891517603
  37. Natalie Ortiz RoblesRiverside, CA 925061962168567
  38. Katerine Ortiz-EnriquezAlameda, CA 945011790420263
  39. Cynthia Ortiz-RodriguezSanta Ana, CA 927061043873219
  40. Leslie Ortiz-RuizWalnut Creek, CA 945981639641814
  41. Brittney Orwin, BCBALong Beach, CA 908031902213440
  42. Christopher Osborn, BCBAVentura, CA 930031881129088
  43. Ashley OsbunPetaluma, CA 949541588132690
  44. Courtney Osby, BCBASan Diego, CA 921011265208540
  45. Diana OseguedaClovis, CA 936121659902690
  46. Anthony OseiWoodland Hills, CA 913671295439321
  47. Abiodun OshinyemiOntario, CA 917641871264168
  48. Pamela Osnes, PH.D., BCBA-DOakland, CA 946061902169709
  49. Chelsea Osorio, MS, BCBAVisalia, CA 932911982112264
  50. Erick OsorioConcord, CA 945201841761327

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.