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 266 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. Danylle NoyesCorona, CA 928791477166312
  2. Romelyn Aena NucumSan Diego, CA 921261225908775
  3. Aden NulezRancho Mirage, CA 922701114896073
  4. Tiffeny NunesVisalia, CA 932921154742849
  5. Alexandra NunezAlameda, CA 945011689160905
  6. Ashley NunezVentura, CA 930031215861489
  7. Cecily NunezVictorville, CA 923941306730999
  8. Diana NunezGilroy, CA 950201033756978
  9. Elizabeth NunezSan Bruno, CA 940661700349149
  10. Gloria NunezCosta Mesa, CA 926261144999723
  11. Gustavo NunezTustin, CA 927801548194145
  12. Isabel Nunez, M.A., B.C.B.APalmdale, CA 935511619376944
  13. Isabella NunezRancho Cucamonga, CA 917301538012703
  14. Jasmine NunezStockton, CA 952071881246999
  15. Julie NunezRialto, CA 923761326932070
  16. Karen NunezLos Angeles, CA 900251851921795
  17. Norma NunezCorona, CA 928791306626551
  18. Paola NunezStudio City, CA 916041033542873
  19. Rocio Nunez, BCBAWoodland Hills, CA 913671285129353
  20. Sarai NunezOntario, CA 917641942934294
  21. Viana NunezImperial Beach, CA 919321851939243
  22. Yamile NunezStockton, CA 952071255800058
  23. Leydi Nunez CalderonTulare, CA 932741477188969
  24. Raul NungarayLos Angeles, CA 900191215315130
  25. Clarissa Nuno, MASanta Fe Springs, CA 906701396564118
  26. Gisselle NunoCosta Mesa, CA 926261669335311
  27. Habon NurCampbell, CA 950081912402876
  28. Natalie NussModesto, CA 953501174174676
  29. Merissa Nutt, MAEncinitas, CA 920241194223438
  30. Jade NuyenSanta Ana, CA 927051639617723
  31. Nicolette NuzziLos Angeles, CA 900341225506124
  32. Chioma NwachukwuOakland, CA 946061902457443
  33. Chinwe Uju NwangwuDanville, CA 945261205338928
  34. Ezeka NwanyanwuLos Angeles, CA 900641134604812
  35. Angela NwokikeSan Mateo, CA 944011962991323
  36. Chinedu NwokoSherman Oaks, CA 914231043006026
  37. Amanda Nwosu, M.S., BCBASan Jose, CA 951211740558360
  38. Sylvina NwosuEl Segundo, CA 902451922927367
  39. Renora NyabutiOakland, CA 946121629663158
  40. Brittany NyamadzawoSacramento, CA 958261871095752
  41. Kelly NyeinSan Jose, CA 951361972092278
  42. Aaron Nystedt, B.C.B.A.San Francisco, CA 941311508137167
  43. Makenzie O NeillWildomar, CA 925951659227619
  44. Rebecca O' Gormantrimbath, MA, BCBAPismo Beach, CA 934491558629832
  45. Lashyrah O'Bannon-ElSan Diego, CA 921011790428035
  46. Corrie O'BarrSacramento, CA 958251285094383
  47. Christina O'BrienGardena, CA 902481508316563
  48. Sara O'BrienSan Jose, CA 951121972072841
  49. Keri O'CallaghanFresno, CA 937221568900702
  50. Cristina O'Connell, BCBACosta Mesa, CA 926261730800657

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.