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 89 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. Jamie GrayBehavior Technician1548153372
  2. Nicki GrayBehavior Technician1619832524
  3. Ronald Gray, MFTIMarriage & Family Therapist1679907067
  4. Gary Greco, RPHPharmacist1164895207
  5. Nicolemadeira GrecoMarriage & Family Therapist1285300913
  6. Ambar GreenSocial Worker1952766909
  7. Brittney GreenBehavior Technician1093372633
  8. Emelie GreenBehavior Technician1346939915
  9. Eric GreenPeer Specialist1548761547
  10. Geoffrey Green, PAMedical Physician Assistant1306878533
  11. Jessica Green, MDObstetrics & Gynecology Physician1770163271
  12. Lisette GreenBehavior Technician1437930922
  13. Sandra GreenMental Health Counselor1538291349
  14. Danielle Greenberg, MDObstetrics & Gynecology Physician1477180420
  15. Megan Greenberg, FNPFamily Nurse Practitioner1740623420
  16. Channing Greenburg, D.O.Pediatrics Physician1134858038
  17. Ceivannah GreeneBehavior Technician1518698844
  18. Michelle Greene, LCSWClinical Social Worker1023835634
  19. Fred Greensite, MDDiagnostic Radiology Physician1952484479
  20. Jaclyn Greenwood, MS, LCGCGenetic Counselor (M.S.)1871217893
  21. Anita Gregory, M.D.Colon & Rectal Surgery Physician1881655868
  22. Hallie GregoryBehavior Technician1790654325
  23. Oriana GregoryLicensed Psychiatric Technician1336787092
  24. Rosanna Gregory, LACAcupuncturist1073720546
  25. Annaliza GreissBehavior Technician1497637078
  26. Josiah Grepo, PT, DPTPhysical Therapist1538731732
  27. Mychal GrepoRegistered Nurse1548159064
  28. Irina Gres, BABehavior Analyst1831657907
  29. Jacy Gressen, MDAnesthesiology Physician1710515861
  30. Jasleen Grewal, MDInternal Medicine Physician1053739144
  31. Rasvin Grewal, M.D.Anesthesiology Physician1902824089
  32. Quiara GreyCounselor1982486866
  33. Alyssa GribbenBehavior Analyst1023731619
  34. Danielle Gribben, RNRegistered Nurse1992251409
  35. Shelby GriffinBehavior Technician1104635622
  36. Areg Grigorian, MDSurgical Critical Care Physician1538579578
  37. Jocelyn GrigsbyMental Health Counselor1164003323
  38. Breanna Grijalva, MDStudent in an Organized Health Care Education/Training Program1205680410
  39. Harvie GrijalvaBehavior Technician1548947500
  40. Courtney Grimes, M.A., CCC-SLPSpeech-Language Pathologist1225262298
  41. Stephanie GrimesAddiction (Substance Use Disorder) Counselor1952996043
  42. Jennifer GrinceriHospitalist Physician1396325080
  43. Seanna Grob, MD, MASOphthalmic Plastic and Reconstructive Surgery Physician1013262104
  44. Lindsay Groeschel, SLPASpeech-Language Assistant1740780626
  45. Rachael Groh, MDPsychiatry Physician1144925157
  46. Jennifer Gross, DPTPhysical Therapist1043645328
  47. John Gross, MDPlastic and Reconstructive Surgery Physician1619900446
  48. Marcus GrossDay Training/Habilitation Specialist1063206324
  49. William Gross, D.M.D.General Practice Dentistry1538476395
  50. Lesa Grovas, N.P.Pediatric Nurse Practitioner1972677409

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.