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 398 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. Connie Windsor-LantermanOrange, CA 928651366153702
  2. Emily Winebrenner, BCBARancho Cucamonga, CA 917301457806887
  3. Amanda WingEl Cajon, CA 920201407705056
  4. Talena WingfieldTorrance, CA 905051336605955
  5. Sarah WinklerWalnut Creek, CA 945981679934202
  6. Brittney WinnLadera Ranch, CA 926941861772949
  7. Hayley Winn, B.S.San Francisco, CA 941271801222021
  8. Tatum WinslowFresno, CA 937101750745675
  9. Christopher WinstonSouth Pasadena, CA 910301740646280
  10. Diana WinterSan Marcos, CA 920781447723408
  11. Sandra WinterMilpitas, CA 950351629424304
  12. Stephanie WinterSan Mateo, CA 944011942703053
  13. Alexis Winters, BCBASan Bruno, CA 940661144793225
  14. Trisha WintersStockton, CA 952101699029801
  15. Kelsey Wintringham, MS, BCBALos Angeles, CA 900261801729363
  16. Marsha WippermanPasadena, CA 911071083254049
  17. Ashley Wire Maziasz, MFTVan Nuys, CA 914061922452291
  18. Angelica WiseFremont, CA 945381225539448
  19. Adrianne WisnewskiOakland, CA 946061083189435
  20. Jacque Wiswell, BCBASierra Madre, CA 910241669817060
  21. Lauren Withhart, M.S., BCBAPasadena, CA 911851073833232
  22. Kristoffer WitowichLa Mirada, CA 906381215893359
  23. Kaylee Witrago, MA, BCBAFresno, CA 937101265933782
  24. Aileen WitronLynwood, CA 902621528817202
  25. Tanya Witsaman-MillsTustin, CA 927801982389920
  26. Sam WittertMountain View, CA 940401437826385
  27. Amy Wittevrongel, BCBASan Diego, CA 921231285141598
  28. Charlie WittkeSan Mateo, CA 944021144855560
  29. Crystal WittmanCosta Mesa, CA 926261265072128
  30. Emily WittmanConcord, CA 945201235794116
  31. Josiah WittrockCosta Mesa, CA 926261275137259
  32. Summer WittwerFresno, CA 937201932731304
  33. Kamuel WoGlendale, CA 912031831527712
  34. Kelsea Wochaski, MS, BCBASan Diego, CA 921011275023053
  35. Jeanne WojslawOrange, CA 928681346809597
  36. Dustin WolaverBakersfield, CA 933121285362541
  37. Lauren WolcottSouth Lake Tahoe, CA 961501578194825
  38. Michelle Wold, PSYDKentfield, CA 949041427308485
  39. Tsion Wolde, BCBAFresno, CA 937111275849416
  40. Richard Woldemar, BCBAPleasanton, CA 945881891902292
  41. Jenica WoldenSan Diego, CA 921231891419917
  42. Eric WolfCosta Mesa, CA 926261851923361
  43. Matthew WolfSan Diego, CA 921281982147369
  44. Megan Wolf, MA BCBAWinchester, CA 925961942698170
  45. Michelle Wolf, BCBALaguna Hills, CA 926531982366142
  46. Nicole WolfGrover Beach, CA 934331881200582
  47. Sophie WolfSan Diego, CA 921081306711478
  48. Stephanie WolfVentura, CA 930031508585456
  49. Alison Wolfe, BCBASan Diego, CA 921031750625398
  50. Juliana WolfeBakersfield, CA 933131134610868

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.