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 203 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. Sheree Riley Violon, PSY.D.Psychologist1063606911
  2. Nathan RimStudent in an Organized Health Care Education/Training Program1114711470
  3. Alejandrina Rincon, M.D.Obstetrics & Gynecology Physician1295929909
  4. Lorraine RineerMental Health Counselor1093353070
  5. Robb Ring, D.MINPastoral Counselor1528684115
  6. David Ringdahl, D.C.Chiropractor1689609562
  7. Timothy Ringgold, MT-BCMusic Therapist1447545538
  8. Ariana RiosBehavior Technician1770463580
  9. Christina RiosSocial Worker1114742103
  10. Eunice RiosMarriage & Family Therapist1700584851
  11. Gabriel RiosBehavior Technician1104607902
  12. Hilda RiosBehavior Technician1144119363
  13. Katherine RiosBehavior Technician1497533939
  14. Luis Rios MartinezBehavior Technician1558041798
  15. Mai Tram Riquier, MDEmergency Medicine Physician1174272470
  16. Elizabeth Ritchie, MAStudent in an Organized Health Care Education/Training Program1588401863
  17. Tammy RitterMassage Therapist1275961344
  18. Adam Rivadeneyra, MDSports Medicine (Family Medicine) Physician1689935355
  19. Azul RivadeneyraOther Technician1790444628
  20. Alison Rivas, LPTLicensed Psychiatric Technician1245664937
  21. Daisy RivasBehavior Technician1497320014
  22. Jasmine RivasBehavior Technician1174409809
  23. Michelle RivasBehavior Technician1285583302
  24. Silvia RivasBehavior Technician1083481311
  25. Alexander RiveraBehavior Technician1902641434
  26. Alexis RiveraBehavior Technician1619862745
  27. David RiveraMarriage & Family Therapist1174079925
  28. David RiveraBehavior Technician1477420339
  29. Fernando RiveraBehavior Technician1043906795
  30. Hannah RiveraBehavior Technician1982344933
  31. Kailajean RiveraOther Technician1043988454
  32. Kimberly RiveraBehavior Technician1457248783
  33. Matthew RiveraAthletic Trainer1679960165
  34. Monica RiveraBehavior Technician1053028696
  35. Nancy Rivera, RN, CNS, WHNP, DNPWomen's Health Nurse Practitioner1891458766
  36. Oscar RiveraBehavior Technician1437979440
  37. Ronald Rivera, M.D.Emergency Medicine Physician1558716233
  38. Samantha RiveraBehavior Technician1255205340
  39. Sheralee Rivera, CPHW/CCECase Manager/Care Coordinator1245408376
  40. Xyleah-Eden RiveraBehavior Technician1962338715
  41. Patricia Rivera MendozaBehavior Technician1003676107
  42. Jesus Rivera RamirezDay Training/Habilitation Specialist1558132431
  43. Cora RiveroSpeech-Language Pathologist1861374142
  44. Claire RizkCritical Care Pediatric Nurse Practitioner1255816203
  45. Lilliana RizzoOther Technician1124603030
  46. Soledad RoaBehavior Technician1265328694
  47. Leah Roa-GutierrezCase Manager/Care Coordinator1659030229
  48. Danielle Roach, DCChiropractor1245747419
  49. Noah RoachBehavior Technician1508551201
  50. Paige RoachDevelopmental Therapist1962806240

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.