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 29 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. Kristina NeuBehavior Technician1174346340
  2. Joel Neutel, MDLegal Medicine1730163965
  3. Julia NewstedMassage Therapist1275201907
  4. Ekpeleka NezianyaBehavior Technician1487475661
  5. Fergus Ng, MDEmergency Medicine Physician1700806981
  6. Magnolia Ng, D.C., L.ACChiropractor1841633393
  7. Hung Nghiem, PHARM DPharmacist1245709633
  8. Amy Ngo, ODOptometrist1952886988
  9. Brian Ngo, DOFamily Medicine Physician1396372678
  10. Hoaihuong Ngo, LCSWClinical Social Worker1407076722
  11. Mai Khanh NgoBehavior Technician1548016496
  12. Megan NgoBehavior Technician1932989399
  13. Trung Ngo, D.D.S.Dentist1124342571
  14. Van Ngo, L.AC.Acupuncturist1396062725
  15. Charlene Nguon-Rodriguez, AMFT, APCCMarriage & Family Therapist1598322075
  16. Alex NguyenBehavior Technician1720798770
  17. Andrew NguyenClinical Social Worker1881182202
  18. Andrew NguyenBehavior Technician1124584248
  19. Andrew Nguyen, DPTPhysical Therapist1255072245
  20. Andy NguyenBehavior Technician1578310793
  21. Ann Nguyen, ODOptometrist1831226497
  22. Annie NguyenPharmacist1710293089
  23. Cathy NguyenMarriage & Family Therapist1821657594
  24. Charles Nguyen, NPPsychiatric/Mental Health Nurse Practitioner1376477794
  25. Chau Nguyen, LACAcupuncturist1164592002
  26. Christopher Nguyen, L.AC., PH.D.Acupuncturist1285761098
  27. Dave Nguyen, D.M.DGeneral Practice Dentistry1003031972
  28. Davy NguyenRehabilitation Practitioner1033909197
  29. Doris Nguyen, LMFTMarriage & Family Therapist1447841754
  30. Elizabeth Nguyen, RDRegistered Dietitian1205312634
  31. Haley NguyenPhysician Assistant1194291484
  32. Henry Nguyen, D.D.S.General Practice Dentistry1508957812
  33. Hien Nguyen, LCSWClinical Social Worker1588070767
  34. James NguyenPharmacist1487573564
  35. Jennifer NguyenBehavior Technician1407513310
  36. Jessica NguyenPharmacist1528588993
  37. Jonathan Nguyen, D.D.S.General Practice Dentistry1417490996
  38. Kaitlyn Nguyen, PAPhysician Assistant1982360913
  39. Kalena Nguyen, PHARM.D.Pharmacist1326335936
  40. Katie NguyenFamily Nurse Practitioner1699648311
  41. Kaylee NguyenBehavior Technician1992653190
  42. Kellie Nguyen, FNP-CFamily Nurse Practitioner1932886991
  43. Khac Quy NguyenMental Health Counselor1225281280
  44. Linda NguyenBehavior Technician1649823824
  45. Linda NguyenBehavior Technician1598361370
  46. Maisie Nguyen, PHARM.D.Pharmacist1417300625
  47. Marcel NguyenRegistered Nurse1851125124
  48. Michelle NguyenBehavior Technician1861135121
  49. Paul Nguyen, DENTISTGeneral Practice Dentistry1174955488
  50. Phalee Nguyen, PA-CPhysician Assistant1245560226

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.