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 20 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. Elizabeth CastanedaBehavior Technician1841869286
  2. Irene CastanedaBehavior Technician1477192870
  3. Leslie CastanedaBehavior Technician1043130826
  4. Vanessa CastanedaBehavior Technician1780239426
  5. Madison CasteelBehavior Technician1659121887
  6. Evelyn CastellanosBehavior Technician1710686621
  7. Jocelyne CastellanosBehavior Technician1649853904
  8. Sara CastellonBehavior Analyst1508322967
  9. Joshua CasteloBehavior Technician1760123202
  10. Andrew CastilloBehavior Technician1447796271
  11. Cameron Castillo, MHSBehavior Technician1174213169
  12. Daniel CastilloBehavior Technician1801668173
  13. Darangilou CastilloBehavior Technician1932826658
  14. Jason Castillo, M.D.MOHS-Micrographic Surgery Physician1497098644
  15. Melvin Castillo, M.A.Student in an Organized Health Care Education/Training Program1043148240
  16. Michelle Castillo, M.A.Marriage & Family Therapist1457600462
  17. Sandra Castillo, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1376360438
  18. William CastilloBehavior Technician1366902785
  19. Jaquelin Castillo RuizBehavior Technician1386449221
  20. Chantal CastonguayMassage Therapist1376949172
  21. Donna Castro, NPFamily Nurse Practitioner1881354322
  22. Ilene Castro, PTHand Physical Therapist1285852814
  23. Jasmine CastroMental Health Counselor1720857428
  24. Jonathan CastroBehavior Technician1154168268
  25. Maribel CastroBehavior Technician1912694472
  26. Nadine Castro, PHDClinical Psychologist1285698506
  27. Raeleen CastroBehavior Analyst1508449794
  28. Vanessa Castro, BCBABehavior Analyst1982014668
  29. Vann Erwin CastroCertified Respiratory Therapist1326526161
  30. Wendy CastroBehavior Analyst1891296646
  31. Yasmin CastroBehavior Technician1144001843
  32. Shary Castro AlvarezBehavior Technician1689367096
  33. Julie CatesSpeech-Language Pathologist1932829173
  34. Celso Catipon, PHARM.D.Pharmacist1356618656
  35. Karina CaudilloBehavior Technician1457238651
  36. Ariel Causey, FNP-CFamily Nurse Practitioner1326595406
  37. Genevieve Causey, PA-CPhysician Assistant1407485675
  38. Makhaila CauseyBehavior Technician1336853852
  39. Josefina CavalinOther Technician1194471680
  40. Daniela Cavallo, ATCAthletic Trainer1407237795
  41. Sepideh Caviar, DMDGeneral Practice Dentistry1790858488
  42. Richard CazaresBehavior Technician1114435054
  43. Cay Elise CeballosBehavior Technician1629900360
  44. Ruby CeballosBehavior Technician1083361646
  45. Cristian CejaBehavior Analyst1700375474
  46. Mayra CejaBehavior Analyst1558078253
  47. Katherine Ceman, RNRegistered Nurse1962377804
  48. Hannah CericosBehavior Technician1992331391
  49. Daisy Cervantes, RBTBehavior Technician1720925837
  50. Montserrat CervantesBehavior Technician1154294882

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.