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 33 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. Alex DengBehavior Technician1922648096
  2. Crystal DengBehavior Technician1770416257
  3. Gary Deng, MDIntegrative Medicine Physician1780655233
  4. Huijia DengAcupuncturist1932881216
  5. Ismail Deniz, MDPsychiatry Physician1619437704
  6. Dominique DenningBehavior Technician1972270486
  7. Kim Chi Deo, LCSWMental Health Counselor1962806430
  8. Aina DeocampoBehavior Technician1598570327
  9. Melissa Deragisch, MAAssistant Behavior Analyst1033718309
  10. Sandra DerbyBehavior Technician1659831667
  11. Scott Derkum, MDHospitalist Physician1588660849
  12. Davoud DerogarBehavior Technician1194388819
  13. Harishma Desai, PHARMDPharmacist1811174659
  14. Shireena Desai, M.D.Gastroenterology Physician1144457995
  15. Lucille DesiderioBehavior Technician1376003756
  16. Cecil Desilva, M.D.Pain Medicine (Anesthesiology) Physician1649426248
  17. Vanessa DesimoneBehavior Technician1376128678
  18. Sara DesmetMarriage & Family Therapist1508148610
  19. Margie Deutsch Lash, MSED, IBCLC, LLLLSpecialist1194933424
  20. Merceal DevaultBehavior Technician1326601246
  21. Ashley DevineMarriage & Family Therapist1598242398
  22. Julie DewitteOther Specialist/Technologist1598920001
  23. Sarah DexheimerNutritionist1205569399
  24. Amy Dhanjal, RN, PHNRegistered Nurse1629719257
  25. Diana DiasBehavior Technician1730741554
  26. Ilse DiazBehavior Technician1043851942
  27. Peter DiazPhysical Therapist1770128621
  28. Rebecca DiazBehavior Analyst1497572440
  29. Susana DiazBehavior Technician1902534191
  30. Andrew DidonatoBehavior Technician1275239246
  31. Jordyn DieboltBehavior Technician1992531040
  32. John Dieckhoff, M.D.Hospitalist Physician1700068152
  33. Katherine Diep-Kwei, PHARM.D.Pharmacist1053474056
  34. Zoe DietzBehavior Technician1780491886
  35. Nicholas DifleyBehavior Technician1083215941
  36. Aisha Dilday, MSBehavior Analyst1881467710
  37. Talal DimachkiDentist1487703500
  38. Mayumi DimatulacBehavior Technician1649873019
  39. Nan Ding, MPTGeriatric Physical Therapist1902096662
  40. Andrew DinhOccupational Therapist1790627636
  41. Angela DinhPharmacist1639716731
  42. Anh Dinh, MDFamily Medicine Physician1790775971
  43. Anna DinhBehavior Technician1609372291
  44. Jennifer DinhBehavior Technician1376413310
  45. Kelly Dinh, O.D.Optometrist1659400166
  46. Phuong DinhDentist1295279123
  47. Vyvy DinhBehavior Technician1245971274
  48. Rachel Dinkler, NPPsychiatric/Mental Health Nurse Practitioner1205696234
  49. Jennifer Dinsmore, RDRegistered Dietitian1740624618
  50. David Dionson, DCChiropractor1497520977

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.