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 257 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. Keaton WilliamsClinical Social Worker1235059304
  2. Kerry Williams, BC-FNPNurse Practitioner1376779066
  3. Landen WilliamsBehavior Technician1245043819
  4. Laurie Williams, CPNPCritical Care Pediatric Nurse Practitioner1114161650
  5. Leon WilliamsBehavior Technician1215691498
  6. Mark Williams, M.D.Retina Specialist (Ophthalmology) Physician1780118802
  7. Niesha WilliamsBehavior Technician1265120927
  8. Rosaura Williams, MDAnatomic Pathology Physician1417241472
  9. Russell A Williams, MDSurgery Physician1447344718
  10. Stephan WilliamsBehavior Technician1245198001
  11. Teresa Williams, LCSWClinical Social Worker1053499103
  12. Terrie Williams, PHARMDPharmacist1023743440
  13. Traci WilliamsAddiction (Substance Use Disorder) Counselor1609269331
  14. Venita Williams, MDRadiation Oncology Physician1659581775
  15. James H Williams Jr, MDHospitalist Physician1376637637
  16. Tori WilliamsonBehavior Technician1275090318
  17. Julia Willner, MDObstetrics & Gynecology Physician1891974655
  18. Christopher Wills, MDOrthopaedic Surgery Physician1356322721
  19. Amanda WillsonBehavior Technician1124963939
  20. Abigail WilsonMarriage & Family Therapist1700639945
  21. Caroline Wilson, DPTPhysical Therapist1558541599
  22. Emily WilsonBehavior Technician1588481295
  23. Katlin WilsonStudent in an Organized Health Care Education/Training Program1174461305
  24. Kyla Wilson, LCSWClinical Social Worker1396542080
  25. Laura WilsonClinical Genetics (M.D.) Physician1841794567
  26. Leah Wilson, N.P.Nurse Practitioner1447435144
  27. Lisa Wilson, IMF/MFTMarriage & Family Therapist1033567417
  28. Monet WilsonLicensed Vocational Nurse1326833682
  29. Monty Wilson, D.D.S.Oral and Maxillofacial Surgery (Dentist)1487726055
  30. Natalie Wilson, N.P.Family Nurse Practitioner1336431691
  31. Roger Wilson, MDOrthopaedic Surgery Physician1710931076
  32. Samuel Wilson, MDVascular Surgery Physician1518065861
  33. Seon WilsonPharmacist1831952498
  34. Skylar WilsonBehavior Technician1003490079
  35. Britanny WincklerPediatrics Physician1578926606
  36. Brooke Winder, P.T.Orthopedic Physical Therapist1881907657
  37. Connie Windsor-LantermanBehavior Analyst1366153702
  38. Burton Winer, LMFTMarriage & Family Therapist1346458585
  39. Deborah Wing, MDMaternal & Fetal Medicine Physician1881798460
  40. Allan Winger, MDEmergency Medicine Physician1841879889
  41. Shelby WinkSpeech-Language Assistant1356828883
  42. Kiley WinkelhakeBehavior Technician1134884562
  43. Jacqueline Winkelmann, MDNeonatal-Perinatal Medicine Physician1215026331
  44. Felicia WinslowBehavior Technician1588518682
  45. Paul WinsonCertified Registered Nurse Anesthetist1215508601
  46. Anderson WinstonBehavior Technician1144789595
  47. Krista WintersBehavior Technician1316672231
  48. Phillip WintersStudent in an Organized Health Care Education/Training Program1104628064
  49. Agatha WiseMental Health Counselor1275080129
  50. Gloria WiseCounselor1174869788

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.