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 236 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. Shreya Thakur, MDStudent in an Organized Health Care Education/Training Program1861252348
  2. Jessi ThamesBehavior Technician1871347450
  3. Pardeep Thandi, M.D.Emergency Medicine Physician1164820510
  4. Maya Thangavelu, PH.D.Clinical Cytogenetics Physician1174716559
  5. Abhigya Thapa MagarBehavior Technician1326723784
  6. Kristin Theetge, NPAdult Health Nurse Practitioner1053440826
  7. Janis W Thereault, MDAnesthesiology Physician1477647733
  8. Jay Thetford, MDPulmonary Disease Physician1689161192
  9. Aaron ThiBehavior Technician1316712425
  10. William Thibault, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1417981929
  11. Danielle ThienesBehavior Technician1649739137
  12. Meghan ThierryRehabilitation Practitioner1750140018
  13. Daniel Thieu, MDFamily Medicine Physician1154070886
  14. Annika ThiimBehavior Technician1811687759
  15. Julie ThokNurse Practitioner1144659913
  16. Chloe ThomasPhysician Assistant1760153902
  17. Connie Thomas, LMFTMarriage & Family Therapist1598109779
  18. Hannah ThomasStudent in an Organized Health Care Education/Training Program1215632039
  19. James ThomasLicensed Vocational Nurse1194614230
  20. Jeffrey ThomasInternal Medicine Physician1932337136
  21. Judith Thomas, CADCIIAddiction (Substance Use Disorder) Counselor1578923611
  22. Julian Thomas, MDNeurology with Special Qualifications in Child Neurology Physician1003235607
  23. Kyle Thomas, MDStudent in an Organized Health Care Education/Training Program1356143283
  24. Lindsay Thomas, PA-CPhysician Assistant1780980227
  25. Melissa ThomasBehavior Analyst1558006163
  26. Melissa Thomas, MDStudent in an Organized Health Care Education/Training Program1881396232
  27. Michelle ThomasClinical Social Worker1558173682
  28. Nathan ThomasBehavior Technician1164319414
  29. Seth Thomas, DOUrology Physician1104329952
  30. Shagra Thomas, ATCAthletic Trainer1093911232
  31. Shawn Thomas, M.D.Anesthesiology Physician1245674068
  32. Shay ThomasAddiction (Substance Use Disorder) Counselor1396311569
  33. Yvette Thomas, LMFTMarriage & Family Therapist1982913976
  34. Alison Thompson, TRAINEEStudent in an Organized Health Care Education/Training Program1487949772
  35. Angela ThompsonAddiction (Substance Use Disorder) Counselor1609950963
  36. Emma ThompsonBehavior Technician1316868763
  37. Kathryn ThompsonBehavior Technician1750228953
  38. Madison ThompsonBehavior Analyst1760045983
  39. Matthew Thompson, M.D.Diagnostic Radiology Physician1275973000
  40. Melissa Thompson, PA-CMedical Physician Assistant1184168387
  41. Nyla ThompsonBehavior Technician1023826955
  42. Rosa Thompson, LVNLicensed Practical Nurse1861837932
  43. Sarah ThompsonOther Technician1316532120
  44. Claire ThomsenBehavior Technician1992513816
  45. Erik ThomstadBehavior Technician1720914906
  46. Linh Thong, M.D.Nephrology Physician1154510386
  47. Dany Thor, NPPsychiatric/Mental Health Nurse Practitioner1699491860
  48. Micaela Thordarson, PHDClinical Psychologist1366811101
  49. Jacob ThornbladBehavior Technician1023968823
  50. Anna Thorng-MaganaBehavior Technician1962229583

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.