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 44 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. Sumi WonAcupuncturist1013646041
  2. Brian Wong, PTOrthopedic Physical Therapist1255534418
  3. Karis WongPhysical Therapist1669028718
  4. Kassandra Woodson, LCSWClinical Social Worker1295482552
  5. Ashley WoronieckiBehavior Technician1649029844
  6. Deborah Wright, MSSpeech-Language Pathologist1528503802
  7. Annie Wu, L.AC.Acupuncturist1063739712
  8. Lin Wu, L.AC.Acupuncturist1205123767
  9. Po Han WuDentist1316644354
  10. Po-Yun Wu, D.D.S.Dentist1497837140
  11. Shirley WuCounselor1912180449
  12. Wei-Yen Wu, DDSGeneral Practice Dentistry1770983983
  13. Zhiyu WuBehavior Technician1730961087
  14. Janice XiaoPhysician Assistant1942150271
  15. Li XiaoInterpreter1033933742
  16. Min XieBehavior Technician1598572711
  17. Zhihong Xie, ACAcupuncturist1316256209
  18. Deli Xu, L.ACAcupuncturist1760801807
  19. Jing XuAcupuncturist1447002035
  20. Jennifer Yakel, LMFTMarriage & Family Therapist1316403421
  21. Warren Yamashita, MD, MPHAddiction Medicine (Family Medicine) Physician1982137691
  22. Gladys Yanez, MHAddiction (Substance Use Disorder) Counselor1023115649
  23. Cindy Yang, O.D.Optometrist1750434262
  24. Cris YangBehavior Technician1972448629
  25. Ger Yang, L. ACAcupuncturist1982892238
  26. Jee Won YangBehavior Analyst1215759022
  27. Michael Yang, D.D.S.General Practice Dentistry1104954452
  28. Joseph Yarhi, PHARMDPharmacist1285299420
  29. Ismail Yassai, PH.D.Psychologist1548351489
  30. Nathan Yeargin, D.C., L.AC.Chiropractor1720484058
  31. Kristine Yee, RPHPharmacist1093422677
  32. Tzu-Yin YehMarriage & Family Therapist1669053716
  33. Patricia Yglesias, PHDPsychologist1437486651
  34. Christina YiBehavior Technician1780317271
  35. Jenny Yip, PSYDClinical Psychologist1104278100
  36. Lori Yoo, ODOptometrist1023129939
  37. Yeo Sang YooMassage Therapist1285589507
  38. Elmer Yoshida, DDSGeneral Practice Dentistry1497745533
  39. Denise Young, B.S. MUSIC THERAPYMusic Therapist1003010281
  40. William Young, DDSGeneral Practice Dentistry1245357797
  41. Bixiao YuPhysical Therapist1376210781
  42. Sean Yu, D.D.S.General Practice Dentistry1124183520
  43. Won Yu, M.D.Gastroenterology Physician1720065303
  44. Xinyi YuBehavior Technician1619841517
  45. Catherine YubetaBehavior Technician1417643834
  46. Joey Yuen, PHARM D.Pharmacist1134416613
  47. Melinda Zaccagnino, PSY.D., MFTMarriage & Family Therapist1093052938
  48. Nicole Zaha, PSY.D.Clinical Psychologist1972795086
  49. James Zahrowski, DMD MSOrthodontics and Dentofacial Orthopedics Dentistry1750404851
  50. Christy Zail, M.A., MFTMarriage & Family Therapist1053659896

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.