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 24 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. Jacob LiscanoFamily Nurse Practitioner1487510681
  2. Haley Litt, ASWClinical Social Worker1932046190
  3. Hanah Liu, LACAcupuncturist1972816759
  4. Raymond LiuPharmacist1124848486
  5. Wen Lin Liu, DDSDentist1679951289
  6. Marissa LiuzziBehavior Analyst1568396166
  7. Sylvia Livingston, MFTMarriage & Family Therapist1336201177
  8. Bradford Lockhart, DDSGeneral Practice Dentistry1871597138
  9. James Lockwood, D.D.S.General Practice Dentistry1508925413
  10. Luis LomeliTechnician/Technologist1124733829
  11. Kara London, LMFT (100695)Marriage & Family Therapist1578343323
  12. Julie Lopes, RN, NPFamily Nurse Practitioner1821358979
  13. Ashley LopezBehavior Technician1205443843
  14. Desiree LopezMarriage & Family Therapist1326573114
  15. Esmeralda Lopez, NPPsychiatric/Mental Health Nurse Practitioner1144812124
  16. Graciela LopezRehabilitation Practitioner1265222343
  17. Janet LopezAddiction (Substance Use Disorder) Counselor1851164032
  18. Joellez LopezBehavior Technician1306442173
  19. Lina LopezSpeech-Language Assistant1871460329
  20. Sandra LopezRehabilitation Practitioner1033900345
  21. Aditaim Lopez Martinez, N.P.Nurse Practitioner1629421102
  22. Haley LounsburySpeech-Language Pathologist1447626247
  23. Venita Lovelace-Chandler, PHD, PT, PCSPhysical Therapist1508918004
  24. Mervin Low, MDPlastic Surgery Physician1982884219
  25. Yali Lowe, PHARMDPharmacist1295177590
  26. Ariadna Lozada Munoz, RNRegistered Nurse1376310961
  27. Yolanda Lozano, DDSDentist1922356435
  28. Albert LuBehavior Technician1336007889
  29. Jessica Lu, LCSWClinical Social Worker1699236687
  30. Jonathan Lu, FNP-CFamily Medicine Physician1043796402
  31. David Luce, PH.D., MT-BCMusic Therapist1225183320
  32. Michelle Lucio, M.S.Marriage & Family Therapist1578751418
  33. Nicole LuckMarriage & Family Therapist1649681933
  34. Britney LuongBehavior Technician1578206520
  35. Jennifer Luong, NPFamily Nurse Practitioner1235897190
  36. Henry LuuPhysician Assistant1033879739
  37. Mai Ly, D.D.S.General Practice Dentistry1629277900
  38. Phillip LyChiropractor1689446411
  39. Maura Lynch-Loftus, LCSWClinical Social Worker1114016243
  40. Carol LyskoskiCounselor1568766715
  41. William Lyv, PT, DPTPhysical Therapist1609630656
  42. Catherine MaAssistant Health Information Record Technician1194092569
  43. Janet Ma, (MSN, FNP)Family Nurse Practitioner1144868050
  44. Susan MaPsychiatric/Mental Health Nurse Practitioner1154120814
  45. Blanca MaciasDental Hygienist1780369884
  46. Juliet MaciasAddiction (Substance Use Disorder) Counselor1104486109
  47. Lisette Macias, NPPediatric Nurse Practitioner1245568724
  48. Oriana Macias, LCSWClinical Social Worker1356937072
  49. Brenda Macias Gurrola, NPFamily Nurse Practitioner1851804025
  50. Heidi Mackay, RDHAPDental Hygienist1083800411

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.