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 43 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. Leiza Walia, D.M.D.Endodontics1144672270
  2. Chris Walker, B.A.Mental Health Counselor1972767028
  3. Dixie WallAcupuncturist1437449378
  4. Jennifer Walsvick, LCSWClinical Social Worker1740996040
  5. Mira WaltersMarriage & Family Therapist1699182055
  6. Susan Walters, MFTMarriage & Family Therapist1689757346
  7. Francis WangAcupuncturist1770144057
  8. Helen WangPharmacist1922533892
  9. Hsing-An Wang, BCBABehavior Analyst1023369261
  10. Lisa WangBehavior Technician1770209165
  11. Susan Wang, FNP-BCFamily Nurse Practitioner1952188062
  12. Robert Warburton, ARNPPsychiatric/Mental Health Nurse Practitioner1477021764
  13. John Warner, D.D.S.General Practice Dentistry1609960517
  14. Marisa Watanabe, D.D.S.General Practice Dentistry1124300132
  15. Sarah Waterkamp, D.C.Chiropractor1154714962
  16. Natsuko WatkinsOther Technician1205301041
  17. Leah Watson, LVNLicensed Vocational Nurse1366036980
  18. Barbara Wayne, PH.D.Marriage & Family Therapist1295742161
  19. James Weber, D.C.Chiropractor1134499429
  20. Natahlia WehrliBehavior Analyst1477370138
  21. Misty Wei, BCBABehavior Analyst1902462740
  22. Tameka WeiBehavior Technician1841095700
  23. Rochelle Weiser, LCSWMental Health Counselor1609211978
  24. Karen Welch, MFTMarriage & Family Therapist1528364320
  25. Marsha Welch, LCSWClinical Social Worker1396769287
  26. Chris Wendell, D.C.Orthopedic Chiropractor1235123266
  27. Robert Weyand, PHARMDPharmacist1740555234
  28. Audrey Catherine WhiteBehavior Technician1053234518
  29. Sean Whiteley, APCCMental Health Counselor1922839679
  30. Josephine Whitney, MFTMarriage & Family Therapist1326267733
  31. Melissa WhitworthRehabilitation Practitioner1588457675
  32. Elizabeth WilliamsBehavior Technician1235794975
  33. Fernanda WilliamsBehavior Analyst1336647445
  34. Heather WilliamsMental Health Counselor1801240551
  35. Marlene WilliamsMarriage & Family Therapist1699342121
  36. Sanaii WilliamsBehavior Technician1437041936
  37. Tottyona WillinghamClinical Social Worker1720745946
  38. Agrapina Wills, CMTMassage Therapist1417732652
  39. Alana WilsonAssistant Health Information Record Technician1255618047
  40. Lindsay WilsonCommunity Health Worker1962945949
  41. Sheralyn Winn, D.C.Independent Medical Examiner Chiropractor1770737710
  42. Katelyn WinslowMarriage & Family Therapist1609709815
  43. Henry Winter, PH.D.Psychologist1154640365
  44. Katherine WislockiStudent in an Organized Health Care Education/Training Program1659053825
  45. Rachael Witherspoon, LMFTMarriage & Family Therapist1306428578
  46. Tanya Witsaman-MillsBehavior Analyst1982389920
  47. Cameron WolfMental Health Counselor1093579815
  48. Nicholaus Wolf, D.C.Chiropractor1336599943
  49. Tina WolffClinical Social Worker1174041586
  50. Haemi WonBehavior Technician1215775457

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.