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 165 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. Ajanta Naidu, M.D.Pediatric Endocrinology Physician1093795684
  2. Pooja Naik, O.D.Optometrist1073965232
  3. Brittnay Nail, ASWAddiction (Substance Use Disorder) Counselor1851172274
  4. Jordan NaimatAddiction (Substance Use Disorder) Counselor1770211278
  5. Kelvin NaitoStudent in an Organized Health Care Education/Training Program1336841675
  6. Afshan Najafi, MDPediatric Rheumatology Physician1285197194
  7. Haig Najarian, MDGastroenterology Physician1912010257
  8. Ami Najera, LVNLicensed Vocational Nurse1043074669
  9. Luzelena Najera, LCSWClinical Social Worker1952132334
  10. Theresa Nakagawa, LMFTMarriage & Family Therapist1972025534
  11. Alicia Nakahara, PA-CPhysician Assistant1821646142
  12. Saori NakajimaBehavior Technician1235004201
  13. Carolyn Nakamoto, MPASPhysician Assistant1114574290
  14. Kyle Nakamoto, PA-CPhysician Assistant1154831915
  15. Stanley Nakamoto, M.D.Diagnostic Radiology Physician1285633784
  16. Janet Nakamura, M.D.Anatomic Pathology & Clinical Pathology Physician1689853749
  17. Brandon Nakano, PT, DPTPhysical Therapist1578375960
  18. Kalani NakashimaStudent in an Organized Health Care Education/Training Program1801656475
  19. Diana NakashyanForensic Psychologist1376911560
  20. Tamara NakauchiMental Health Counselor1679028385
  21. Mariko Nakayama, MDStudent in an Organized Health Care Education/Training Program1578190559
  22. Sailaja Nalamati, DDSGeneral Practice Dentistry1932364510
  23. Frank NallyMental Health Counselor1245643568
  24. Bryan Nam, MDInternal Medicine Physician1578925467
  25. Hannah Nam, M.D.Infectious Disease Physician1477829190
  26. Jee-Sun Nam, MDPediatrics Physician1437226362
  27. Rajsree Nambudripad, MDInternal Medicine Physician1275780132
  28. Xinyu Nan, M.D.Hematology & Oncology Physician1326458175
  29. Sheldon Nankin, MDPediatrics Physician1235124322
  30. Yenny NannarBehavior Technician1023677747
  31. Filipina NanthavongdouangsyClinical Social Worker1639608250
  32. Ali Naqvi, M.D.Cardiovascular Disease Physician1366860074
  33. Ittiqa NaqviBehavior Technician1437942232
  34. Kiran Naqvi, M.D.Hematology & Oncology Physician1407881592
  35. Omyma Naqvi, PA-CPhysician Assistant1427915461
  36. Robert Naraghi, M.D.Urology Physician1306950043
  37. Autumn NaranjoBehavior Technician1699325647
  38. Priscilla Naranjo, MSWClinical Social Worker1427878412
  39. Sudha Rani Narasimhan, M.D.Pediatrics Physician1851416499
  40. Stacia NaraskyMental Health Counselor1144776451
  41. Shoba Narayan, M.D.Pediatric Nephrology Physician1841516093
  42. Annabelle Nascimento, LVNLicensed Vocational Nurse1548530769
  43. Christine NaserPhysical Therapy Assistant1811787062
  44. Mahsa Nashid, MDFamily Medicine Physician1558701102
  45. Tasha Nasrollahi, MDStudent in an Organized Health Care Education/Training Program1538800719
  46. Annette Nasrollahy, PMHNPPsychiatric/Mental Health Nurse Practitioner1558111039
  47. Pouneh Nasseri, M.D.Hospitalist Physician1962794701
  48. Kevin Nasseri-Noori, MDAnesthesiology Physician1447444930
  49. Deepika NathanGenetic Counselor (M.S.)1720352362
  50. Sejal Nathu, PHARM.DPharmacist1952704330

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.