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 57 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. Steven Honda, PTAPhysical Therapy Assistant1972513380
  2. Amy HongPharmacist1134694052
  3. Bo HongMarriage & Family Therapist1164113155
  4. Derrick Hong, M.DHospitalist Physician1124040696
  5. Elizabeth HongBehavior Technician1154978542
  6. Hee Kyung HongAcupuncturist1336676899
  7. Jonathan HongBehavior Technician1376137869
  8. Julia HongBehavior Technician1487121299
  9. Lee Hong, MD, PHDMedical Oncology Physician1144840646
  10. Peter Hong, RPHPharmacist1295318806
  11. Yen Hong, NPPsychiatric/Mental Health Nurse Practitioner1952862021
  12. Emily HonngBehavior Technician1912695529
  13. Nichole Hooper, BCBABehavior Analyst1306113295
  14. Autumn HopsonBehavior Technician1730820747
  15. Etiana Hormel CastilloBehavior Technician1306667894
  16. Roya Hormozdiaran, MD,Internal Medicine Physician1427245349
  17. Robert Horn, CRNARegistered Nurse1063653111
  18. Felix Horng, MDFamily Medicine Physician1578586046
  19. Jacqueline HorowitzBehavior Analyst1780082321
  20. Aidan HortonBehavior Technician1932975299
  21. Hannah Horton, MS, RDNRegistered Dietitian1255163754
  22. Nicole Horton, BCBABehavior Analyst1306188834
  23. Emmy HoseaBehavior Technician1962265942
  24. Carrie HoshinoAttendant Care Provider1164072021
  25. Mahshidsadat Hosseini ZarePharmacist1700364718
  26. Maryam Hosseinzadeh, IMFMental Health Counselor1518262831
  27. Jasmine HostetlerBehavior Technician1417670381
  28. Holland HothanBehavior Analyst1427340694
  29. Sharon Hou, LMFTMarriage & Family Therapist1770109902
  30. Kimberly Hough, FNP-CFamily Nurse Practitioner1154186419
  31. Kristie Houk CainMarriage & Family Therapist1922324292
  32. Sharon Houk-Syau, MDPsychiatry Physician1295362549
  33. Delisha HoustonHome Health Aide1588537310
  34. Jennifer Hovis, CMTMassage Therapist1679387047
  35. Alyssa HowardSpeech-Language Pathologist1164093258
  36. Joan Howard, OTROccupational Therapist1417242181
  37. Mandy HowardBehavior Technician1407677354
  38. Elizabeth Howarth, PA-CPhysician Assistant1740813252
  39. Michelle HowellBehavior Technician1063011740
  40. Nicholas Hoy, DCChiropractor1659908804
  41. Michael Hoyt, PH.D.Clinical Psychologist1932479086
  42. Danielle HruskaBehavior Technician1831890300
  43. Anko Hsiao, D.D.S.General Practice Dentistry1336348333
  44. Evan HsiaoPhysical Therapy Assistant1932606589
  45. Amber Hsieh, D.D.SGeneral Practice Dentistry1073806725
  46. Hsien-Ming HsiehAcupuncturist1982930277
  47. Jerry Hsieh, M.D.Pulmonary Disease Physician1598055709
  48. Madison HsiehBehavior Technician1932099082
  49. Mary Hsieh, RPHPharmacist1194025478
  50. Shu-Ting Hsieh, CCC-SLPSpeech-Language Pathologist1780271924

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.