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 148 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. Melissa MartinezClinical Social Worker1982155875
  2. Melissa MartinezBehavior Technician1023750551
  3. Natalie MartinezBehavior Technician1558048595
  4. Nataly MartinezCase Manager/Care Coordinator1336854629
  5. Nicole Martinez, FNP- BCNurse Practitioner1770726275
  6. Rachel MartinezBehavior Technician1831898980
  7. Renee MartinezNeonatal Nurse Practitioner1245771906
  8. Robin Martinez, BCBABehavior Analyst1366907560
  9. Robin MartinezBehavior Technician1043945660
  10. Stephanie MartinezMental Health Counselor1518681535
  11. Stephanie MartinezBehavior Technician1174487425
  12. Tara MartinezOther Technician1013592922
  13. Taylor MartinezBehavior Technician1568018927
  14. Veronica MartinezBehavior Technician1386403889
  15. Wendy MartinezBehavior Technician1538042890
  16. Yvette MartinezBehavior Technician1821703331
  17. Zachary MartinezBehavior Technician1598572018
  18. Ana Martinez De Andino, PHD, LPPsychologist1215549613
  19. Ashley Martinez GomezOther Technician1558945774
  20. Karen Martinez GuardadoBehavior Technician1144143355
  21. Rocio Martinez Marquina, AABehavior Technician1912572751
  22. Nataly Martinez MedinaBehavior Technician1346115326
  23. Jeniffer Martinez ZambranoBehavior Technician1831749472
  24. Maria Martinez-GaricaCounselor1043945124
  25. Yared Martinez-RaffinSocial Worker1245842723
  26. Alice MartinoStudent in an Organized Health Care Education/Training Program1306305149
  27. Robert MartinsBehavior Technician1033973813
  28. Gregory Maruki, L.ACAcupuncturist1710236955
  29. Amir Hossein MarvastiOphthalmology Physician1568882751
  30. Miriam Mas OtinianoBehavior Technician1861137267
  31. Elysha MaselliMental Health Counselor1598183782
  32. Brian Maser, MDPsychiatry Physician1144554635
  33. Kayla Mashoudy, MDStudent in an Organized Health Care Education/Training Program1124820618
  34. Dania MasonClinical Social Worker1477165256
  35. Dwayne MasonBehavior Technician1922644616
  36. Jessica MasonBehavior Technician1942967039
  37. Kyson MasonBehavior Technician1518824481
  38. Malia Mason, RAS-IBehavior Technician1114168275
  39. Nadeyah MasonBehavior Technician1942917893
  40. Mark Masotto, M.D.Diagnostic Radiology Physician1033118336
  41. Momin Masroor, MDStudent in an Organized Health Care Education/Training Program1629770037
  42. Alaynna MasseOther Technician1003403536
  43. Amanda MasseStudent in an Organized Health Care Education/Training Program1760283006
  44. Leah Massey-LongoMental Health Counselor1366929242
  45. Brayden Massie, NONEBehavior Technician1194437244
  46. Christine Master, N.P.Adult Health Nurse Practitioner1144424904
  47. Nicole Masters, PA-CPhysician Assistant1578082129
  48. Ashley MataBehavior Technician1609599604
  49. Danica MataBehavior Technician1346886165
  50. Jocelin MataOther Technician1265197503

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.