Registry data as of Aug 27, 2026

Assistant Behavior Analyst in California

2,752 NPPES records list assistant behavior analyst with a California practice address, 7.1 per 100,000 residents, 2 of 50 per resident. San Diego and Ontario have the most; each record links to the provider's NPI and the California license search. Page 1 of 56.

CMS NPPES registry, loaded Aug 27, 2026; 2023 Census estimates · NUCC 106E00000X · method

San Diego has the most, 120

Source: CMS NPPES, primary taxonomy 106E00000X by practice city, loaded Aug 27, 2026.

Assistant Behavior Analyst records in California

  1. Elyse AbadRiverside, CA 925061093658957
  2. Leah AbayeSan Jose, CA 951341811490816
  3. Muhammad AbbasElk Grove, CA 956241275151508
  4. Tarig Abd AllahRosemead, CA 917701457298226
  5. Ashar AbdallahSan Jose, CA 951481609574565
  6. Maimouneh AbdulhadiRoseville, CA 956781659231264
  7. Hanna AbeSan Jose, CA 951191396691457
  8. Itzel AbonceSacramento, CA 958211700604246
  9. Bryce AboodLos Angeles, CA 900261811813454
  10. Ledya AbrahaStockton, CA 952071306591805
  11. Tatyana AbramovSacramento, CA 958251790585479
  12. Jousalin AbuaitaMountain View, CA 940191497226708
  13. Sabrina AbundisIrvine, CA 926141811758386
  14. Maya AcevedoElk Grove, CA 957581083591036
  15. Yaneika Acevedo VieraEl Centro, CA 922431285313122
  16. Alan AchterbergIrvine, CA 926141619790698
  17. Andres AcostaSacramento, CA 958261821963836
  18. Diana AcostaWhittier, CA 906051619554078
  19. Laurie AcostaOroville, CA 959661912737172
  20. Natzy Acosta ContrerasCalexico, CA 922321760339535
  21. Emily AcunaWhittier, CA 906051447992425
  22. Nilufar AdabzadehLos Angeles, CA 900431639754872
  23. Meira AdlerRoseville, CA 956611184355083
  24. Renna AdyLawndale, CA 902601063206704
  25. Ana AfaneRancho Cucamonga, CA 917301104360148
  26. Amir AfzaliModesto, CA 953501912855792
  27. Pegah Agahzadeh Kesheh, MAOntario, CA 917641861175085
  28. Diego AguayoMonterey, CA 939401356190524
  29. Ana Fernanda AguilarEl Centro, CA 922431740109834
  30. Betty AguilarOntario, CA 917641447713003
  31. Eduardo AguilarEl Centro, CA 922431568236438
  32. Fransisca AguilarAtwater, CA 953011528785110
  33. Kyli-Anne AguilarAlhambra, CA 918031558167247
  34. Maribel AguilarSacramento, CA 958201255036224
  35. Maribel AguilarOntario, CA 917641851077218
  36. Miguel AguilarLos Angeles, CA 900431245952845
  37. Nayeli AguilarOntario, CA 917641003603614
  38. Ricardo AguilarSanta Clara, CA 950501184100166
  39. Victoria AguilarLaguna Niguel, CA 926771578437653
  40. Savanah AguilarappellOntario, CA 917611720928468
  41. Maria AguirreCanoga Park, CA 913031457162448
  42. Rachel AguirreGranite Bay, CA 957461821611104
  43. Tiffany AguirreModesto, CA 953541780154690
  44. Laila AhmadIrvine, CA 926141487530713
  45. Lindsey AkinSacramento, CA 958251346784519
  46. Mrudula AkkinepallyGardena, CA 902481659050490
  47. Malk Al RubayeOrange, CA 928681902517949
  48. Lara Al SammanRancho Cucamonga, CA 917301730739335
  49. Melissa AlarconSan Diego, CA 921231639899206
  50. Victoria AlarconAtwater, CA 953011720966070

California ranks 2 of 50 per resident

  1. Florida11.4
  2. California7.1
  3. Oklahoma6.6
  4. South Carolina4.7
  5. 50 states and D.C.3.2

Source: CMS NPPES, primary taxonomy 106E00000X by practice state, loaded Aug 27, 2026; records per 100,000 residents, 2023 Census estimates.

What the count covers

The CMS National Plan and Provider Enumeration System currently lists 2,752 Assistant Behavior Analyst providers with a primary practice address in California. Each clinician on this roster selected Assistant Behavior Analyst as their primary taxonomy at NPI enrollment, a self-reported classification that is updated whenever the provider files a correction with CMS. The count excludes organizations (group practices, hospitals, clinics operate under separate NPIs) and excludes providers who chose a different primary specialty even if they practice Assistant Behavior Analyst part-time. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

At 2,752 enrolled providers, Assistant Behavior Analyst in California is a mid-volume market, that matters for search-radius decisions, because patients in California outside the largest metros often need to broaden to adjacent cities to find a local Assistant Behavior Analyst clinician. The directory below is paginated 50 providers at a time (56 pages total) and is sorted alphabetically by last name, so scanning for a specific practice usually goes faster than scrolling; on the provider detail page you'll find the full NPPES record including address, phone, credentials, and any published Medicare Part D prescribing activity for 2024.

Before contacting anyone on this list, verify the practice is still at the address shown, NPPES refreshes monthly, but providers who have relocated, retired, or changed employers may not have filed an NPI update yet. Important: PlainDoctor is a directory of publicly available CMS government data covering Assistant Behavior Analyst providers in California, not a quality ranking, a board-certification verifier, or medical advice. Always confirm credentials through the NPPES NPI Registry, the California medical board, and, where relevant, the ABMS, AOA, or the specialty's primary certifying body before making any clinical decision. Nothing on this page substitutes for a conversation with a licensed clinician.

States with a similar number

  1. Florida2,576
  2. Texas449
  3. Michigan354
  4. New York345

States with a similar rate per 100,000

  1. Oklahoma6.6
  2. South Carolina4.7
  3. Kansas4.7
  4. Hawaii4.4

The largest states

  1. Florida2,576
  2. Texas449
  3. Michigan354
  4. New York345
  5. Virginia303

Source: CMS National Plan and Provider Enumeration System (NPPES), file loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.