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 13 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. Raul Armenta MartinezBehavior Technician1649119843
  2. Donna Armfield Hume, L.C.S.W.Clinical Social Worker1457665226
  3. Justin ArmondOther Technician1164182929
  4. Christopher Armstrong, M.D.Surgery Physician1912260035
  5. Ethan ArmstrongBehavior Technician1508556481
  6. Jaiden ArmstrongBehavior Technician1346023413
  7. Jeffrey Armstrong, M.D.Pediatrics Physician1376641548
  8. Julia Armstrong, MA, CCC-SLPSpeech-Language Pathologist1912368259
  9. William Armstrong, MDOtolaryngology Physician1063592145
  10. Christine Arnaldo, M.D.Pediatrics Physician1164713871
  11. Kristin ArnoldBehavior Technician1053004572
  12. Tierra ArnoldBehavior Technician1104563246
  13. Leslie ArocheRehabilitation Practitioner1891381315
  14. Gabriel Arom, MDPediatric Otolaryngology Physician1801383799
  15. Melissa Aromin, M.D.Pediatric Emergency Medicine (Pediatrics) Physician1477810497
  16. Manu AroraDentist1255646840
  17. Millie AroraInternal Medicine Physician1003347527
  18. Neelu Arora, M.D.Obstetrics & Gynecology Physician1952580714
  19. Michael Arquilla, M.D.Specialist1598734832
  20. Ashley Arreaga RodasBehavior Technician1306558549
  21. Francine Arredondo, LPTMental Health Counselor1669811717
  22. Roberto ArredondoBehavior Technician1457286759
  23. Sarah ArredondoBehavior Technician1679449318
  24. Frida ArreolaBehavior Technician1700778156
  25. Gabriel ArreolaMarriage & Family Therapist1073917910
  26. Jesse ArreolaBehavior Technician1770367120
  27. Destiny ArriagaBehavior Technician1467148742
  28. Jasmine Arriaga, PPSSchool Counselor1609714062
  29. Antonio Arrieta, M.D.Pediatric Infectious Diseases Physician1861599748
  30. Jonathan Arroyave, BS, PTAPhysical Therapy Assistant1619848652
  31. Alma ArroyoMarriage & Family Therapist1336720598
  32. Alyssa ArroyoBehavior Technician1194355057
  33. Cathleen Arroyo, M.ED., BCBABehavior Analyst1043810120
  34. Fabiola Arroyo, LMFTMarriage & Family Therapist1821884339
  35. Jacqueline ArroyoBehavior Technician1215824636
  36. Nayeli ArroyoBehavior Technician1124794045
  37. Ruth Arroyo, RNRegistered Nurse1588350847
  38. Miriam Arroyo HernandezBehavior Technician1700589074
  39. Latika Arsecularatne, M.D.Family Medicine Physician1518070382
  40. Aysha ArshadStudent in an Organized Health Care Education/Training Program1366144453
  41. Denise ArteagaCounselor1316739238
  42. Elizabeth ArteagaClinical Social Worker1962033423
  43. Matthew ArteagaPhysical Therapist1124986526
  44. Zhaohui Arter, MDHematology & Oncology Physician1184116451
  45. Daniel Artiga, MDEmergency Medicine Physician1801537964
  46. Conrad ArtissAssistant Behavior Analyst1033881164
  47. Catherine Artoun, D.O.Obstetrics & Gynecology Physician1841552502
  48. Kyleigh ArveloBehavior Technician1689390221
  49. Stacy ArvizuMental Health Counselor1457699233
  50. Malik AryanBehavior Technician1053009068

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.