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 41 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. Wayne Chang, MDOccupational Medicine Physician1306926076
  2. Yongen Chang, MD, PHDNephrology Physician1932490034
  3. Karen ChaninSchool Psychologist1588503775
  4. Nissa Chantana, PSYDClinical Psychologist1740718766
  5. Annie Chao, PHARM.D.Pharmacist1386709020
  6. Brandon Chao, MDStudent in an Organized Health Care Education/Training Program1679277800
  7. Elizabeth Chao, MDClinical Genetics (M.D.) Physician1700179157
  8. Jeffrey Chao, MDSurgery Physician1164515995
  9. Timothy ChaoDentist1417004276
  10. Daniel Chapin, DD, CISM, BCATSM,Mental Health Counselor1679641922
  11. Camielle ChaponBehavior Technician1891403051
  12. Jenise Chappell, AUDAudiologist1790270270
  13. Clifford Char, M.D.Anesthesiology Physician1598786212
  14. Gregory Char, ODOptometrist1154481216
  15. Sushma CharBehavior Technician1912720251
  16. Aida CharcoBehavior Technician1700614138
  17. Neel Chari, M.D.Hospitalist Physician1427589308
  18. Ahmad CharifaAnatomic Pathology & Clinical Pathology Physician1215315361
  19. Davin Chark, M.D.Student in an Organized Health Care Education/Training Program1790938306
  20. Kim Charney, M.D.Surgery Physician1699790899
  21. Leah Chase, MDSurgery Physician1184477622
  22. Danielle Chater LeaPhysician Assistant1083331078
  23. Alexander Chau, PHARM.D.Pharmacist1609726306
  24. Anthony Chau, M.D.Vascular Surgery Physician1699055988
  25. Brian ChauPharmacist1528539442
  26. Cindy Chau, N.P.Family Nurse Practitioner1073839858
  27. Cindy Chau, MDMaternal & Fetal Medicine Physician1699080598
  28. Hannah Chau ChauCommunity Health Worker1316772924
  29. Jessie ChauPharmacist1083234199
  30. Sandy ChauBehavior Technician1215657705
  31. Sophia ChauPharmacist1326863630
  32. Steven Chau, M.D.Otolaryngology Physician1629422795
  33. Tytan ChauBehavior Technician1770267510
  34. Nirav ChaudharyGeneral Practice Dentistry1740936236
  35. Dhruvi ChauhanCommunity Health Worker1396227997
  36. Neha ChaurasiaRheumatology Physician1457980211
  37. Laila ChausseBehavior Analyst1043067069
  38. Erik ChavarriaBehavior Technician1356066641
  39. Mayra ChavarriaCounselor1689090706
  40. Angelisse ChavezBehavior Technician1003590191
  41. Anna Chavez, D.D.SOrthodontics and Dentofacial Orthopedics Dentistry1801359997
  42. Aurora ChavezBehavior Technician1386305530
  43. Brian ChavezBehavior Technician1386364149
  44. Correna ChavezRehabilitation Practitioner1184126971
  45. Cynthia ChavezBehavior Technician1194612424
  46. Freddy ChavezOther Technician1487244299
  47. Gary Chavez, MDEmergency Medicine Physician1720096209
  48. Jessica ChavezBehavior Technician1063265817
  49. Julia ChavezSocial Worker1356036255
  50. Karen ChavezMental Health Counselor1285268433

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.