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 243 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. Jenny Truong, RNClinical Social Worker1710228366
  2. John Truong, DMDGeneral Practice Dentistry1932548021
  3. Kaitlyn TruongBehavior Technician1568279180
  4. Kevin Truong, MD, MBAInternal Medicine Physician1053998989
  5. Kyle TruongBehavior Technician1770470072
  6. Laetitia Truong, M.D.Family Medicine Physician1831622588
  7. Mai-Vy Truong, NONEBehavior Technician1942931977
  8. Minh TruongBehavior Technician1093452971
  9. Ngoc-Hai Truong, M.D.Anesthesiology Physician1952518425
  10. Nguyen TruongBehavior Technician1356124952
  11. Stacy TruongOther Technician1023693934
  12. Tai Truong, MDInternal Medicine Physician1366902439
  13. Tawny TruongBehavior Technician1225622327
  14. Thuy TruongRehabilitation Practitioner1003086836
  15. Victor Truong, PAPhysician Assistant1407448277
  16. William Truong, PHARM.D.Pharmacist1023405909
  17. Cindy Truong Tran, NP-CNurse Practitioner1396347324
  18. Colleen Trupkin, MPH, RDRegistered Dietitian1760643423
  19. Katherine Truxaw, M.A. SLP-CFSpeech-Language Pathologist1548546815
  20. An-Chi TsaiOptometrist1912669706
  21. Chloe TsaiPharmacist1073124293
  22. Fong Tsai, MDDiagnostic Radiology Physician1821182189
  23. Irene Tsai, M.D.Diagnostic Radiology Physician1447558044
  24. Jerry Tsai, M.D.Internal Medicine Physician1083703565
  25. Monica TsaiAllergy & Immunology (Internal Medicine) Physician1598176497
  26. Nathaniel TsaiStudent in an Organized Health Care Education/Training Program1649070244
  27. Tsung-Lin TsaiStudent in an Organized Health Care Education/Training Program1124548722
  28. Trevor Tsay, MDFamily Medicine Physician1760944110
  29. Daniel TseBehavior Technician1548809171
  30. Fornia TseBehavior Technician1770437774
  31. Jill Tseng, M.D.Gynecologic Oncology Physician1265759807
  32. Undram TserendorjBehavior Technician1295550606
  33. Taylor TsoStudent in an Organized Health Care Education/Training Program1215630082
  34. Brittany TsouOphthalmology Physician1629548839
  35. Kristin TsujimotoBehavior Technician1518604388
  36. Kotaro TsutsumiStudent in an Organized Health Care Education/Training Program1790487049
  37. Yasushi TsuyamaStudent in an Organized Health Care Education/Training Program1093574311
  38. Eric TuBehavior Technician1699662122
  39. Melanie TubbsBehavior Technician1477202745
  40. Adrianne TucayRegistered Nurse1376333237
  41. Ana TuckerSocial Worker1861378705
  42. George Tucker, PH.D.Clinical Psychologist1346337268
  43. Kelly Tucker, M.D.Cardiovascular Disease Physician1356372643
  44. Tamara Tucker, ACNPC-AGAcute Care Nurse Practitioner1992150775
  45. Daniel TuellerPediatrics Physician1851193759
  46. Lindsey TufonoOther Technician1104492800
  47. Zolekha Tukhi, DNP, FNP-CNurse Practitioner1548076870
  48. Patricia Tully, RNNurse Practitioner1073767901
  49. Andrew TungPsychiatry Physician1932736303
  50. Paul Tung, D.O.Body Imaging Physician1487978318

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.