NPPES file of Aug 9, 2026

Doctors and health care providers in Tustin, CA

2,221 individual NPPES records list a practice address in Tustin, 97th of 812 California cities. The largest group is marriage & family therapist: 276, 12% of the city's records, against 6% across California. Page 17 of 45.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Tustin

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Tustin in California

  • Rank in California97th of 812 cities by records
  • Share of the state0.2% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups29.5% of all records

Compared with California as a whole, Tustin has 3.4× the state's share of chiropractor records and 0.70× its share of behavior technician records.

Providers in Tustin, alphabetically

  1. Nicole HernandezRehabilitation Practitioner1992594824
  2. Stacy HernandezPhysical Therapy Assistant1568281228
  3. Vanessa Hernandez, LMFTMarriage & Family Therapist1184858698
  4. Yazi Hernandez, DCChiropractor1962259705
  5. Evelyn Hernandez-MejiaBehavior Analyst1104434299
  6. Fatima Herrera CervantesRehabilitation Practitioner1457140998
  7. Martha Herrero, MDEmergency Medicine Physician1932269156
  8. Kambria HerringCounselor1821342742
  9. Amber HickersonBehavior Technician1871269118
  10. Peter Hilen, MFTMarriage & Family Therapist1831378157
  11. Michelle Hill, LMFTMarriage & Family Therapist1316505134
  12. Brittany HittClinical Social Worker1649052705
  13. Andy Ho, PT, DPTPhysical Therapist1265238034
  14. John HoPhysical Therapist1205405511
  15. Juliana HoBehavior Technician1124873641
  16. Tiffany HoBehavior Technician1205552908
  17. Mary Hoang, O.D.Optometrist1861862906
  18. Mimi Hoang, DOFamily Medicine Physician1891377594
  19. Brian Hockett, MS, AMFTMarriage & Family Therapist1760220883
  20. Kalyn Hoffman, MDDermatology Physician1558998716
  21. Leslie Hofmeister, M.S.Marriage & Family Therapist1255685194
  22. Shannon Holland, LCSWClinical Social Worker1518504232
  23. Lisa Holland-Fretz, MA, LMFTMarriage & Family Therapist1689697567
  24. Norman Hollis, DDSGeneral Practice Dentistry1932265329
  25. Nicole HolmesMarriage & Family Therapist1154053114
  26. James Hong, L.ACAcupuncturist1457926230
  27. Megan Hormazdi, MSN-FNPFamily Nurse Practitioner1528566742
  28. Janet HorwitzOther Technician1558648154
  29. Krista Hoskins, AUD F-AAAAudiologist1194997361
  30. Kyle HoskinsMarriage & Family Therapist1235937095
  31. Iris HouSpeech-Language Pathologist1326521956
  32. Thomas Howell, PH.DClinical Psychologist1639364284
  33. Pin-Hung Hsieh, M.D.Internal Medicine Physician1144323064
  34. Eileen Hsiung, RDNRegistered Dietitian1912507708
  35. Kristy Hsu, RPHPharmacist1972137057
  36. Thomas HsuBehavior Technician1831975085
  37. Katherine HuFoot & Ankle Surgery Podiatrist1922748698
  38. Lynn Hua, D.D.S.General Practice Dentistry1255601688
  39. Charlie Huang, D.O.Internal Medicine Physician1427591577
  40. Chin-Wei Huang, MDPulmonary Disease Physician1831193895
  41. Ching-Yi HuangBehavior Technician1245045319
  42. Feng-Chin HuangPharmacist1417549973
  43. Ging Hao Huang, L. AC.Acupuncturist1326686098
  44. Hsiu Fen HuangBehavior Technician1508440082
  45. Huiyu HuangBehavior Technician1568269033
  46. Rony Huang, DDSDentist1174714935
  47. Thomas Huang, M.D.Otolaryngology Physician1043201155
  48. Tin-Yuan Huang, O.T.R.Occupational Therapist1215128038
  49. Yvonne Huang, PT, DPTPhysical Therapist1952618829
  50. Ashley Hudson, M.AMarriage & Family Therapist1831448273

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

Tustin, California appears in the CMS National Plan and Provider Enumeration System with 2,221 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 Tustin - 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 Tustin 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 Tustin is weighted toward Marriage & Family Therapist (276 clinicians, followed by Behavior Technician with 273 and Clinical Social Worker with 106). 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, Tustin reports roughly 5.7 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, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Tustin practice address, a coverage gap Tustin patients typically fill by traveling to a larger nearby hub.

For Tustin 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 Tustin, CA?

There are 2,221 registered healthcare providers in Tustin, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Tustin?

The most common specialties in Tustin are Marriage & Family Therapist, Behavior Technician, Clinical Social Worker, General Practice Dentistry, Chiropractor. Marriage & Family Therapist has the most providers with 276.

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.