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 39 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. Virginia CespedesBehavior Technician1023996048
  2. Eui Cha, M.D.Hospitalist Physician1497047757
  3. Hanna ChaBehavior Technician1770340358
  4. Jin Kyung Cha, ACUPUNCTURISTAcupuncturist1225202732
  5. Alyssa ChaconBehavior Technician1639986342
  6. Angel ChaconBehavior Technician1528957420
  7. Elizabeth ChaconBehavior Technician1528525649
  8. Mysue ChaconBehavior Technician1043107444
  9. Saidi ChaconBehavior Technician1407743990
  10. Mubina Chagpar-Sivjee, OTR/LOccupational Therapist1831405653
  11. Anastasia Chahine, MDStudent in an Organized Health Care Education/Training Program1134869100
  12. Daniel Chai, PT, DPTPhysical Therapist1215699699
  13. Jacob Chai, NPAcute Care Nurse Practitioner1548779168
  14. Kaitlyn ChaiBehavior Technician1134906084
  15. Paul Chai, D.M.D.Dentist1851686067
  16. Tsongi Chai, D.D.S.Dentist1881744860
  17. Mayra ChaidezMental Health Counselor1366575557
  18. Ian Chait, M.D.Anesthesiology Physician1003833930
  19. Barry Chaitin, M.D.Psychiatry Physician1861591307
  20. Tamara Chaker, N.P./C.N.S.Nurse Practitioner1447491147
  21. Shiraj Chakraborty, PT, DPT, ATC, CSCSPhysical Therapist1295137230
  22. Bharath Chakravarthy, MDEmergency Medicine Physician1144259839
  23. Orfan Chalabi, DDSOrthodontics and Dentofacial Orthopedics Dentistry1538226121
  24. Armen Chalian, M.D.Anesthesiology Physician1588685309
  25. Hamid Chalian, M.D.Diagnostic Radiology Physician1669736500
  26. Christina Chalmers, MSN, CPNPPediatric Nurse Practitioner1902284656
  27. Adam ChamBehavior Technician1417521949
  28. Cassandra ChamberlainSocial Worker1124700109
  29. David Chamberlin, MDUrology Physician1205861994
  30. Deon ChamblissBehavior Technician1326961715
  31. Priti Chamdal, MDAnatomic Pathology Physician1083293773
  32. Salomon Chams, DDSDentist1841424165
  33. Allan Chan, MDFamily Medicine Physician1699235259
  34. Carmen Chan, MDStudent in an Organized Health Care Education/Training Program1437646627
  35. Cato ChanDiagnostic Radiology Physician1477084648
  36. Chuck Chan, DOEmergency Medicine Physician1841877222
  37. Daniel Chan, P.A.Physician Assistant1871671420
  38. Hin Wai Agatha ChanBehavior Technician1336754803
  39. Jamie ChanMarriage & Family Therapist1205186459
  40. Janelle ChanBehavior Technician1366380917
  41. Jefferson Chan, M.D., PH.D.Clinical Pathology/Laboratory Medicine Physician1871713271
  42. Joshua Chan, DO, MSInternal Medicine Physician1689317588
  43. Lily Chan, DCAcupuncturist1336795277
  44. Lucas ChanAddiction (Substance Use Disorder) Counselor1578298949
  45. Margaret Chan, PHARM.D.Pharmacist1679982359
  46. Melinda Chan, AU.D.Audiologist1457730319
  47. Michael Chan, M.D.Interventional Cardiology Physician1487660833
  48. Regan Chan, D.O.Family Medicine Physician1558546341
  49. Ryan Chan, PASurgical Physician Assistant1093184988
  50. Wan-Yin Chan, M.D.Allergy & Immunology Physician1932391471

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.