NPPES file of Aug 9, 2026

Doctors and health care providers in Orange, CA

13,245 individual NPPES records list a practice address in Orange, 11th of 812 California cities. The largest group is behavior technician: 4,271, 32% of the city's records, against 18% across California. Page 37 of 265.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Orange

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Orange in California

  • Rank in California11th of 812 cities by records
  • Share of the state1.4% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups42% of all records
  • Behavior Technician rank7th of the 10 California cities with the most

Compared with California as a whole, Orange has 7.3× the state's share of other technician records and 0.43× its share of physical therapist records.

Providers in Orange, alphabetically

  1. Miranda CastanedaRehabilitation Practitioner1053021659
  2. Tyler CastanedaBehavior Technician1508695818
  3. Jonas Castaneda-PanucoDiagnostic Radiology Physician1659799369
  4. Brenda Casteau, LCSWClinical Social Worker1558670570
  5. Alexis CastellanosBehavior Technician1013763945
  6. Bianca CastellanosCase Manager/Care Coordinator1417384660
  7. Dulce CastellanosBehavior Technician1720908882
  8. Elizabeth CastellanosBehavior Technician1225675929
  9. Shana Castellanos, M.S.Rehabilitation Practitioner1841522810
  10. Viviana CastellanosBehavior Analyst1972063402
  11. Edith Castellon, LCSWClinical Social Worker1649845256
  12. Megan CastielBehavior Technician1952079014
  13. Adela V Castillo, NPObstetrics & Gynecology Nurse Practitioner1366524530
  14. Amy CastilloBehavior Technician1396566568
  15. Anthony CastilloBehavior Technician1396462750
  16. Evelyn CastilloBehavior Technician1881155026
  17. Jose CastilloBehavior Technician1932661675
  18. Litzy CastilloBehavior Technician1083323281
  19. Michelle CastilloBehavior Technician1902695232
  20. Roxanne Castillo, LMFTMarriage & Family Therapist1013341841
  21. Sally CastilloClinical Social Worker1881864973
  22. Vivian Castillo, PTPhysical Therapist1174721450
  23. Amanda Castillo Leon, MASpeech-Language Pathologist1649410895
  24. Laura Castillo RamirezBehavior Technician1679226419
  25. Paola Castillo Villagomez, NONEBehavior Technician1275272379
  26. Brianna Castino NicholasBehavior Technician1225995087
  27. Shantel CastleAssistant Behavior Analyst1124864772
  28. Isabella CastorenaBehavior Technician1770420986
  29. Jesse CastrejonBehavior Technician1952016461
  30. Olivia CastrejonOther Technician1316521529
  31. Adreanne CastroAddiction (Substance Use Disorder) Counselor1124869011
  32. Andrew CastroBehavior Technician1417790270
  33. Jacinda CastroOther Technician1518551175
  34. Jennette CastroBehavior Technician1407503527
  35. Kassandra CastroBehavior Technician1366136442
  36. Kimberly CastroBehavior Analyst1093274599
  37. Maria CastroBehavior Technician1952021701
  38. Pablo CastroBehavior Technician1346100476
  39. Sandra Castro, B.A.Mental Health Counselor1144486218
  40. Valerie CastroDay Training/Habilitation Specialist1710705322
  41. Dana Castro AraujoBehavior Technician1215824545
  42. Nina CasupananLicensed Vocational Nurse1538950084
  43. Richard Catabona, DOPhysical Medicine & Rehabilitation Physician1144961285
  44. Danielle CatacutanMental Health Counselor1750809844
  45. Rafaelle Aerin CatacutanBehavior Technician1265282685
  46. Eva CatalanBehavior Technician1962286609
  47. Jy'Kasharayl CatchingBehavior Technician1033902952
  48. Sarah CatesBehavior Technician1629833033
  49. Adithya Cattamanchi, MDCritical Care Medicine (Internal Medicine) Physician1336106871
  50. Sierra Catzin MurilloBehavior Technician1396554754

The largest California cities

  1. Los Angeles69,537
  2. San Diego52,937
  3. San Francisco38,143
  4. Sacramento33,083
  5. San Jose20,925

All of California →

How to read this directory

Orange, California appears in the CMS National Plan and Provider Enumeration System with 13,245 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Orange - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Orange practice location on file. 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.

The provider mix in Orange is weighted toward Behavior Technician (4,271 clinicians, followed by Student in an Organized Health Care Education/Training Program with 870 and Marriage & Family Therapist with 424). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to California's population, Orange reports roughly 34 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

Of California's most common specialties, Case Manager/Care Coordinator is the most prominent one with no provider currently listing a Orange practice address, a coverage gap Orange patients typically fill by traveling to a larger nearby hub.

For Orange patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.

For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.

Common questions

How many doctors are in Orange, CA?

There are 13,245 registered healthcare providers in Orange, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Orange?

The most common specialties in Orange are Behavior Technician, Student in an Organized Health Care Education/Training Program, Marriage & Family Therapist, Clinical Social Worker, Mental Health Counselor. Behavior Technician has the most providers with 4,271.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

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.