NPPES file of Aug 9, 2026

Doctors and health care providers in Irvine, CA

7,778 individual NPPES records list a practice address in Irvine, 20th of 812 California cities. The largest group is behavior technician: 2,372, 30% of the city's records, against 18% across California. Page 99 of 156.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Irvine

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Irvine in California

  • Rank in California20th of 812 cities by records
  • Share of the state0.8% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups40.1% of all records

Compared with California as a whole, Irvine has 2.7× the state's share of assistant behavior analyst records and 0.28× its share of student in an organized health care education/training program records.

Providers in Irvine, alphabetically

  1. John Nguyen, PHARM D.Pharmacist1023382280
  2. Jon Nguyen, M.D.Anesthesiology Physician1780605113
  3. Josephine NguyenPhysical Therapist1154106490
  4. Julie Nguyen, D.D.S.Pediatric Dentistry1851522064
  5. Justina Nguyen, MSN, APRN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1811885882
  6. Kaden NguyenBehavior Technician1043178544
  7. Kathleen Nguyen, DMDDentist1881370005
  8. Katrina NguyenPharmacist1518731033
  9. Kenny NguyenBehavior Technician1841761897
  10. Kevin NguyenBehavior Technician1013796275
  11. Khanh Nguyen, MDHospitalist Physician1295710325
  12. Khanhtrang Nguyen, PHDPharmacist1477865632
  13. Kim Phuong Nguyen, OPTOMETRIST (OD)Optometrist1548352040
  14. Kim Phuong NguyenPsychiatric/Mental Health Nurse Practitioner1194648212
  15. Kimberly NguyenBehavior Technician1669010484
  16. Kristine Nguyen, PA-CMedical Physician Assistant1902461189
  17. Lena NguyenSpeech-Language Pathologist1114586260
  18. Lien Nguyen, PA-CPhysician Assistant1821948183
  19. London NguyenBehavior Technician1902771835
  20. Madelene NguyenBehavior Analyst1871053496
  21. Mary-Elizabeth Nguyen, D.C.Chiropractor1669696522
  22. Michael NguyenBehavior Technician1023573870
  23. Michelle Nguyen, NP-CPsychiatric/Mental Health Nurse Practitioner1740601269
  24. Michelle Nguyen, OTR/LOccupational Therapist1811675556
  25. Michelle NguyenBehavior Technician1073343455
  26. Miley NguyenPharmacist1619678075
  27. Misha NguyenBehavior Technician1326508615
  28. Nancy NguyenPharmacist1558924043
  29. Nancy NguyenBehavior Technician1366190357
  30. Nancy NguyenMedical-Surgical Registered Nurse1154191252
  31. Nhi Nguyen, ODOptometrist1497597520
  32. Nicholas NguyenBehavior Technician1194402594
  33. Paul NguyenDentist1588100705
  34. Pauline NguyenPharmacist1780443267
  35. Peter Nguyen, D.O.Emergency Medicine Physician1871933366
  36. Peter NguyenBehavior Technician1457855264
  37. Peter NguyenStudent in an Organized Health Care Education/Training Program1003375502
  38. Quan Nguyen, NMDNaturopath1093477606
  39. Quang NguyenBehavior Technician1154284180
  40. Quang Tuan NguyenStudent in an Organized Health Care Education/Training Program1336922814
  41. Quy NguyenPharmacist1518240233
  42. Ray Nguyen, DDSGeneral Practice Dentistry1649442666
  43. Robert Nguyen, M.D., M.P.H.Hospice and Palliative Medicine (Internal Medicine) Physician1255717823
  44. Sandy Nguyen, PHARMDPharmacist1376901801
  45. Selena NguyenBehavior Technician1750166310
  46. Shelley NguyenBehavior Technician1568203693
  47. Sophia NguyenBehavior Technician1790623742
  48. Susan Nguyen, PSYD, LMFTMarriage & Family Therapist1073061511
  49. Sylvie NguyenPharmacist1972821015
  50. Tammy NguyenBehavior Technician1801434352

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

Irvine, California appears in the CMS National Plan and Provider Enumeration System with 7,778 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 Irvine - 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 Irvine 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 Irvine is weighted toward Behavior Technician (2,372 clinicians, followed by Behavior Analyst with 376 and Marriage & Family Therapist with 368). 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, Irvine reports roughly 20 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, Addiction (Substance Use Disorder) Counselor is the most prominent one with no provider currently listing a Irvine practice address, a coverage gap Irvine patients typically fill by traveling to a larger nearby hub.

For Irvine 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 Irvine, CA?

There are 7,778 registered healthcare providers in Irvine, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Irvine?

The most common specialties in Irvine are Behavior Technician, Behavior Analyst, Marriage & Family Therapist, Pharmacist, Physical Therapist. Behavior Technician has the most providers with 2,372.

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.