NPPES file of Aug 9, 2026

Doctors and health care providers in Fountain Valley, CA

2,190 individual NPPES records list a practice address in Fountain Valley, 99th of 812 California cities. The largest group is behavior technician: 207, 9% of the city's records, against 18% across California. Page 38 of 44.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Fountain Valley

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Fountain Valley in California

  • Rank in California99th of 812 cities by records
  • Share of the state0.2% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups20.6% of all records

Compared with California as a whole, Fountain Valley has 15.6× the state's share of other technician records and 0.31× its share of student in an organized health care education/training program records.

Providers in Fountain Valley, alphabetically

  1. William Theriault, MASSAGE PRACTITIONEMassage Therapist1366054215
  2. Surinder Thind, M.D.,FACCCardiovascular Disease Physician1568503639
  3. John Thomas, MDAnesthesiology Physician1578630646
  4. Krissy ThomasMarriage & Family Therapist1740979921
  5. Taylor ThomasClinical Social Worker1407291164
  6. Emily ThompsonBehavior Technician1518685734
  7. Kimberly Thompson, BCBABehavior Analyst1366981755
  8. Michelle ThompsonStudent in an Organized Health Care Education/Training Program1326447277
  9. Julie Thompson-Dobkin, DOSpecialist1811007727
  10. Nicole Tibbits, PSYDClinical Psychologist1306565700
  11. Kevin Khai Tieu, MDObstetrics & Gynecology Physician1154397768
  12. Debra Tindle, R.D.Registered Dietitian1265740740
  13. Anahi TinocoSpeech-Language Assistant1003630344
  14. Calvin Tint, MDInternal Medicine Physician1265413751
  15. Mehran Tirandaz, M.D.Diagnostic Radiology Physician1538119540
  16. Yvonne To, O.D.Optometrist1528131075
  17. Theriault Todd, PH.D.Clinical Psychologist1952621351
  18. Lincoln Tom, M.D.Family Medicine Physician1629186820
  19. Caroline Tomongin, PHARM.D.Pharmacist1144353616
  20. John TonSurgical Assistant1992696678
  21. Kris Ton, PA-CSurgical Physician Assistant1205860988
  22. Annie TongBehavior Technician1689326217
  23. Hanh Tong, DR.Pharmacist1760188114
  24. Jonathan Tong, M.D.Anesthesiology Physician1598701864
  25. Stephen Torday, M.D.Obstetrics & Gynecology Physician1659451458
  26. Aracely TorresBehavior Technician1992323737
  27. Carolina TorresBehavior Technician1457077992
  28. Miki Tortorelli, N.P.-CFamily Nurse Practitioner1750772000
  29. Anna Tieu TotuMassage Therapist1194512947
  30. Annie Tram, BEHAVIOR TECHNICIANBehavior Technician1174004717
  31. Amy TranBehavior Technician1245837780
  32. An Khang Tran, PHARM.D.Pharmacist1942345434
  33. Annie TranBehavior Technician1972003150
  34. Anthony Tran, M.D.Anesthesiology Physician1295092526
  35. Brian Tran, PHARMDPharmacist1407523467
  36. Brian Tran, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1851018469
  37. Bryant Tran, RRTRegistered Respiratory Therapist1578183885
  38. Christina TranPhysical Therapy Assistant1447022835
  39. Dat TranPharmacist1427596378
  40. David TranBehavior Technician1518460757
  41. Donna Tran, DNPNurse Practitioner1134301070
  42. Douglas Tran, MDOtolaryngology Physician1922003623
  43. Dustin Tran, D.CChiropractor1700254216
  44. Edward Tran, D.D.SStudent in an Organized Health Care Education/Training Program1447871157
  45. Elizabeth TranPharmacist1922435247
  46. Elizabeth Tran, PHARMDPharmacist1043032865
  47. Emily Tran, PT, DPTPhysical Therapist1487488474
  48. Frances Tran, MDFamily Medicine Physician1225166606
  49. Haylie Tran, NPFamily Nurse Practitioner1225764459
  50. Hoai Tran, O.D.Optometrist1245271519

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

Fountain Valley, California appears in the CMS National Plan and Provider Enumeration System with 2,190 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 Fountain Valley - 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 Fountain Valley 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 Fountain Valley is weighted toward Behavior Technician (207 clinicians, followed by Pharmacist with 144 and Marriage & Family Therapist with 101). 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, Fountain Valley reports roughly 5.6 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, Addiction (Substance Use Disorder) Counselor is the most prominent one with no provider currently listing a Fountain Valley practice address, a coverage gap Fountain Valley patients typically fill by traveling to a larger nearby hub.

For Fountain Valley 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 Fountain Valley, CA?

There are 2,190 registered healthcare providers in Fountain Valley, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Fountain Valley?

The most common specialties in Fountain Valley are Behavior Technician, Pharmacist, Marriage & Family Therapist, Internal Medicine Physician, Other Technician. Behavior Technician has the most providers with 207.

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.