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 322 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. Natalie RubioBakersfield, CA 933091689377905
  2. Noemi RubioCovina, CA 917241609331685
  3. Sonia RubioBellflower, CA 907061336037498
  4. Yesenia RubioLivingston, CA 953341154816205
  5. Maria Rubio LuqueGarden Grove, CA 928401962056895
  6. Alyssa Ruckle, BCBACarlsbad, CA 920111417547159
  7. Emily RuddyEncinitas, CA 920241134774367
  8. Melanie RudinCorona, CA 928791295260214
  9. Jaeden RudulphSan Bernardino, CA 924071942122536
  10. Aaron RudySan Rafael, CA 949031346855772
  11. Stephanie Rudy, BCBAPalmdale, CA 935511386152205
  12. Allyson Rueckert, MASherman Oaks, CA 914231962775478
  13. Joseline RuedaOntario, CA 917641659080687
  14. Jordan RuelasVisalia, CA 932771578122438
  15. Marleni RuelasWoodland Hills, CA 913671619607439
  16. Noah RuelasYuba City, CA 959911003667734
  17. Virginia RuelasSacramento, CA 958161770353260
  18. Rayla Rain RuelosCosta Mesa, CA 926261609646561
  19. Debra Ruff, MA, BCBAEncinitas, CA 920241619238318
  20. Monica RuffaloConcord, CA 945201699401430
  21. Jeanette RuffocerdaFontana, CA 923361194242768
  22. Mary Jossa Grace RufinoEscalon, CA 953201164983540
  23. Astra Rugless, MS, QASPTarzana, CA 913561922773332
  24. Timothy RugnaoOakland, CA 946061356848527
  25. Alyssa RuizChino, CA 917101710817416
  26. Angelica RuizCosta Mesa, CA 926261437901881
  27. Aylin RuizMadera, CA 936371710522149
  28. Bertha Ruiz, M.S.Glendale, CA 912031891198891
  29. Celeste RuizSalinas, CA 939061285415570
  30. Christian RuizChula Vista, CA 919101134486897
  31. Cindy RuizLong Beach, CA 908081639803240
  32. Constance RuizChula Vista, CA 919141184298838
  33. Cynthia RuizTemecula, CA 925921255896791
  34. Diana RuizOntario, CA 917641346995107
  35. Elizabeth RuizGardena, CA 902481568180479
  36. Haylie RuizSanta Maria, CA 934551336759356
  37. Jasmine RuizCosta Mesa, CA 926261295559284
  38. Javier Ruiz, BCBAArcadia, CA 910061023489127
  39. Jocelyn RuizModesto, CA 953541245733831
  40. Joselynn RuizSan Marcos, CA 920781649746538
  41. Juan Ruiz, MAOrange, CA 928681427473446
  42. Kathleen RuizVictorville, CA 923921437507787
  43. Lodia Ruiz, BASan Diego, CA 921081831411057
  44. Lucia RuizOntario, CA 917621447020938
  45. Maritza RuizVictorville, CA 923921619492220
  46. Melody Ruiz, BACHEALORS OF SCIENCRiverside, CA 925051417508466
  47. Miranda Ruiz, BCBAWestminster, CA 926831669967790
  48. Nathan RuizSouth Gate, CA 902801821898677
  49. Raquel Ruiz, MASalinas, CA 939061710685151
  50. Rebecca Ruiz, MA, BCBASan Diego, CA 921281669859609

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.