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 81 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. Jun Liu, MDInternal Medicine Physician1770669319
  2. Ludi LiuLactation Consultant (Non-RN)1093684292
  3. Meiqi Liu, LCSWClinical Social Worker1821616434
  4. Mia Liu, IBCLCDoula1023860277
  5. Michael LiuGeneral Practice Dentistry1104340017
  6. Richard LiuPsychiatric/Mental Health Nurse Practitioner1902673700
  7. Sandra Liu, MAMarriage & Family Therapist1992444533
  8. Tina LiuSpeech-Language Assistant1114697752
  9. Xiwen LiuBehavior Technician1679265466
  10. Yihan LiuContact Lens Fitter1063371177
  11. Yu Liu, MDStudent in an Organized Health Care Education/Training Program1912609116
  12. Yuli Liu, PH.D.Counseling Psychologist1841540010
  13. Tammy Liu Na, O.D.Optometrist1346801933
  14. Zoe LiuagBehavior Technician1740959709
  15. Ann LiuzziOccupational Therapist1346922820
  16. Frederick LivaBehavior Technician1487426854
  17. Jenna LlamasPhysical Therapist1477364305
  18. Alexander LlanosBehavior Technician1174081376
  19. Lauren Lloyd, M.S., BCBABehavior Analyst1083964324
  20. Brian Lo, MDInternal Medicine Physician1073501565
  21. Julia LoBehavior Technician1861131286
  22. Matthew LoStudent in an Organized Health Care Education/Training Program1033053913
  23. Steven Lo, LPCC, LMFTMental Health Counselor1356783534
  24. Yee Man LoSpeech-Language Pathologist1487172573
  25. Charles Loc, DPMFoot & Ankle Surgery Podiatrist1265817605
  26. Andrea Lochtefeld, ACSWSocial Worker1063860500
  27. Anne LockaryMarriage & Family Therapist1558211433
  28. Bellamy LoefmanBehavior Technician1043981855
  29. Kasey LoftusBehavior Analyst1265076467
  30. Michael Loi, DOInternal Medicine Physician1861057556
  31. Arpita Loiacano, LEPSchool Psychologist1659067403
  32. Delanie LombardoBehavior Analyst1053970160
  33. Kathleen Joy Lombardo, DPTPhysical Therapist1508003674
  34. Hether Lombardo-Benjamin, LMFTMarriage & Family Therapist1538346879
  35. Jose Lomboy, DDSGeneral Practice Dentistry1073661468
  36. Hena Lonappan, PA-CPhysician Assistant1689432320
  37. Marta Long, MDInternal Medicine Physician1205860509
  38. Steven Long, MDFamily Medicine Physician1760446470
  39. Ashley LongtinBehavior Technician1720898588
  40. Aja LooClinical Social Worker1871123323
  41. Jacqueline LooBehavior Technician1225714181
  42. Shawn Loo, DDSDentist1639379977
  43. Dean LoomisOrthopedic Physical Therapist1245016856
  44. Lisa Loosmore, PHARMDPharmacist1174072821
  45. Amber LopezPhlebotomy Technician1982296463
  46. Edwin LopezBehavior Technician1538783931
  47. Elisa LopezBehavior Analyst1881245728
  48. Emily LopezBehavior Technician1710715511
  49. Erica Lopez, BA, RBTBehavior Technician1881431591
  50. Erick LopezBehavior Technician1114753324

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.