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 104 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. Nathan OrtezOther Technician1134685191
  2. April Ortiz, PTAPhysical Medicine & Rehabilitation Physician1700648813
  3. Diana OrtizBehavior Technician1740153584
  4. Isabella OrtizBehavior Technician1780576249
  5. Priscilla Ortiz, CNM, WHNP-BCAdvanced Practice Midwife1205340486
  6. Riley OsborneBehavior Technician1821554205
  7. Ashor Oshana, PHARMDPharmacist1295460913
  8. Yukari OshimaAcupuncturist1972809861
  9. Amanda Oshita, PT, DPTPhysical Therapist1235082058
  10. Malekshah Oskoui, DMD, CAGS, MSDEndodontics1356442859
  11. Laura OstroveMarriage & Family Therapist1144613951
  12. Anna Ostrovsky, MFTMarriage & Family Therapist1851801724
  13. Blair Ota, DDS, MDOral and Maxillofacial Pathology Dentistry1366516023
  14. Craig Ota, D.D.SGeneral Practice Dentistry1154534535
  15. Melissa Ota, DDSGeneral Practice Dentistry1821498940
  16. Tamer Othman, M.D.Hematology (Internal Medicine) Physician1316471980
  17. Darrell Otsu, DDS DENTISTGeneral Practice Dentistry1619035839
  18. Robert Otsu, DDSDentist1992843791
  19. Katyn OttSpeech-Language Pathologist1174333066
  20. Daniel Otterson, MDInternal Medicine Physician1093210973
  21. Jaymeeh Ouk, NP-CFamily Nurse Practitioner1215430988
  22. Norma Ouyang, PSY.D.Psychologist1326326810
  23. Judy Owens, M.D.Diagnostic Radiology Physician1366674962
  24. Karen Owens, PTPhysical Therapist1225169329
  25. Lucie Owens, PHARM.D.Pharmacist1790184265
  26. Elise OzawaSpeech-Language Pathologist1760983621
  27. Burak Ozgur, M.D.Neurological Surgery Physician1205877651
  28. Faraz Ozlati, DCChiropractor1033741145
  29. Bridget Ozman, MDFamily Medicine Physician1629185012
  30. Robert Pabico, BCBABehavior Analyst1710247606
  31. Sean PabloBehavior Analyst1831606490
  32. John PacettiBehavior Technician1245992346
  33. Jazmine PachecoBehavior Technician1881268688
  34. Mayte Pacheco- SilvaBehavior Technician1114542594
  35. Isabela PacisBehavior Technician1356925945
  36. Aimee Pack, BCBABehavior Analyst1114261823
  37. Joseph Packer, DMDEndodontics1699960864
  38. Kanei PadhyaBehavior Technician1285316943
  39. Janette PadillaBehavior Technician1497484638
  40. Maria Padilla, FNP, PHN, RNFamily Nurse Practitioner1427467935
  41. Michael Padilla, L.AC.Acupuncturist1710212980
  42. Yi-Chen Padilla, FNPFamily Nurse Practitioner1255076626
  43. Rea Jane Padua, OTRP, OTR/LOccupational Therapist1871817254
  44. Alexis PaduanoBehavior Technician1750989000
  45. Victor PaezBehavior Technician1881253821
  46. Katherine Pagtama, BS, RBTBehavior Technician1538676093
  47. Majid Pahlevan Hosseini, PT PHYSICAL THERAPISPhysical Therapist1881873149
  48. Brian Paik, M.DFamily Medicine Physician1053506527
  49. Christian PakPharmacist1699439927
  50. Jaewoo Pak, M.D.Pain Medicine Physician1962567321

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.