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 40 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. Grace Thomas, PA-CPhysician Assistant1346005089
  2. Haley ThomasBehavior Technician1235825654
  3. Veronica Thomas, PH.D.Clinical Psychologist1639379191
  4. Douglas Thompson, PT, DPTPhysical Therapist1982466488
  5. Tricia Thorpe, LCSWClinical Social Worker1215159173
  6. Krishnamala ThotapalliSpeech-Language Pathologist1982963765
  7. Denae ThrasherMental Health Counselor1982958823
  8. Marcela Throckmorton, MFTMarriage & Family Therapist1770787624
  9. Nina TilkaClinical Psychologist1730716564
  10. Tameika Timmons, LCSWClinical Social Worker1326283557
  11. Nadia TiongsonBehavior Analyst1598653321
  12. Jimmy To, PHARMDPharmacist1790418895
  13. Bree TollmanMarriage & Family Therapist1437805462
  14. Kimberly Tollman, LMFTMarriage & Family Therapist1518628551
  15. James Toner, D.D.S.General Practice Dentistry1538288840
  16. Chanakan TongklangMassage Therapist1215826482
  17. Daisy TorresRehabilitation Practitioner1821477928
  18. Karla Torres, B.S.Counselor1033552617
  19. Kimberly Torres, ACSWClinical Social Worker1033953013
  20. Sandra TorresBehavior Technician1558189936
  21. Yolanda Torres-Fredenburg, D.C.Chiropractor1952631871
  22. Teresa TovarSpeech-Language Assistant1588075840
  23. Holly Towliat, LMFTMarriage & Family Therapist1518848043
  24. Cynthia TownsleyHearing Instrument Specialist1295512077
  25. Amy TranMarriage & Family Therapist1740531581
  26. Amy Tran, PA-CPhysician Assistant1790465359
  27. Andrew Tran, MDEmergency Medicine Physician1669408621
  28. Andy TranPhysical Therapist1992066302
  29. Christie Tran, DOObstetrics & Gynecology Physician1790364123
  30. David Tran, PHARM.D.Pharmacist1164903803
  31. Donna TranBehavior Analyst1376376186
  32. Donny Tran, MDFamily Medicine Physician1649319666
  33. Jimmy Tran, DMDDentist1043403686
  34. John Tran, DDSGeneral Practice Dentistry1528409075
  35. Kelly Tran, O.DOptometrist1093783797
  36. Kien Tran, MDInternal Medicine Physician1396831889
  37. Lane TranChiropractor1962036616
  38. Lily TranPhysician Assistant1619405537
  39. Loanne Tran, DAOM, L.AC.Acupuncturist1225206972
  40. Mimi Tran, PA-CPhysician Assistant1952331415
  41. Nguyen TranHearing Instrument Specialist1457653545
  42. Phuong Tran, MDFamily Medicine Physician1104240928
  43. Tan Tran, PHARM DPharmacist1043816937
  44. Theresa Tran, NP-CFamily Nurse Practitioner1568939833
  45. Thuy Tran, NPRegistered Nurse1821463423
  46. Tiffany TranOccupational Therapist1336976067
  47. Tommy TranBehavior Technician1578020848
  48. Tracy TranBehavior Technician1215585351
  49. Joanna Treder Kawecki, MDPediatric Anesthesiology Physician1609145549
  50. Lisa TriCase Manager/Care Coordinator1659607505

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.