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 259 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. Melissa NayarEncino, CA 913161184972945
  2. Melissa Nazarian, BCBALa Crescenta, CA 912141629765482
  3. Shant NazarianWoodland Hills, CA 913641366224420
  4. Esmeralda Nazario, HIGH SCHOOLRiverside, CA 925051205453248
  5. Samar NazirElk Grove, CA 957581992276257
  6. Didy NduengaSan Leandro, CA 945781518765361
  7. Jocelyn NealLos Angeles, CA 900451366238974
  8. Karen Neal, M.A., BCBAGarden Grove, CA 928411003154048
  9. Kiara NealRancho Cucamonga, CA 917301528935566
  10. Marquis NealRancho Cucamonga, CA 917301073480018
  11. Shaina NeaseSanta Clara, CA 950501649779877
  12. Andrea NechaySalinas, CA 939011922503614
  13. Isabella NedjarAnaheim, CA 928051265153837
  14. Danielle NedwickEl Segundo, CA 902451689593105
  15. Brandon Needens, BCBAMerced, CA 953481639614977
  16. Hannah NeedhamCosta Mesa, CA 926261942872817
  17. Brandon NeelyConcord, CA 945201972373587
  18. Janice NeelySacramento, CA 958251922647411
  19. Jennifer NeelySacramento, CA 958251336524123
  20. Juliana NeelySanta Ana, CA 927051295194611
  21. Nicolette Nefdt-Gonzalez, PH.D.Simi Valley, CA 930651275822959
  22. Haley NeffHermosa Beach, CA 902541326645110
  23. Lia NeffFullerton, CA 928321285459339
  24. Bruno NegreteSan Diego, CA 921031558963967
  25. Cesar NegreteThousand Oaks, CA 913601184337727
  26. Iliana NegreteMonrovia, CA 910161720589849
  27. Lauren NegreteCosta Mesa, CA 926261164009676
  28. Rikky NegreteVictorville, CA 923921891322632
  29. Araly Negrete GarciaSan Bernardino, CA 924081134752124
  30. Yolanda Negrete MirandaCosta Mesa, CA 926261063019867
  31. Lessly Negrete-Tuy, B.C.B.A.Orange, CA 928681578008595
  32. Jolenna NegretteWildomar, CA 925951982572368
  33. Tiffany NeiderhauserNorthridge, CA 913241023693116
  34. Hayley Neimy, M.S.Santa Monica, CA 904031780040493
  35. Emily NeisOakland, CA 946061669949160
  36. Jacob Neldam-VasqeuzDiscovery Bay, CA 945051992298335
  37. Alyssa NelsonEl Cajon, CA 920201093215253
  38. Andreia NelsonStockton, CA 952121356203525
  39. Bryan NelsonLong Beach, CA 908061912621798
  40. Courtney NelsonMonrovia, CA 910161528608254
  41. Courtney NelsonFolsom, CA 956301235604075
  42. Elise NelsonSan Diego, CA 921211457867632
  43. Gabriella NelsonHuntington Beach, CA 926461780190710
  44. Ian NelsonIrvine, CA 926141972244887
  45. Jennifer NelsonIrvine, CA 926141528911732
  46. Jessica NelsonRancho Mirage, CA 922701740750496
  47. Lindsay NelsonWalnut Creek, CA 945961639471766
  48. Robert NergeteGardena, CA 902481689309163
  49. Harlie NeriSanta Clarita, CA 913551487155933
  50. Ismael NeriArcadia, CA 910061962892497

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.