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 42 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. Kimlien Vu, NPNurse Practitioner1285012096
  2. Ky Vu, M.D.Hospitalist Physician1801812664
  3. Nancy Vu, M.D.Neurology Physician1821059957
  4. Quang Vu, PHARMACISTPharmacist1346986965
  5. Tony Vu, O.D.Optometrist1942221346
  6. Tramanh Vu, PA-CPhysician Assistant1376878579
  7. Vivian VuPharmacist1285015891
  8. John Vu-NguyenPharmacist1114322344
  9. An Vuong, M.D.Oral and Maxillofacial Surgery (Dentist)1508813510
  10. Julie Nhung VuongPharmacist1679129894
  11. Kevin Vuong, BEHAVIOR TECHNICIANBehavior Technician1730669615
  12. Minh Uyen Vuong, PHARM.DPharmacotherapy Pharmacist1508080268
  13. Mindy Vuu, NP-BCNurse Practitioner1619807104
  14. William Vy, DCChiropractor1356831663
  15. Marissa Wahl, PTAPhysical Therapy Assistant1336838937
  16. Alyssa Walker, BTOther Technician1336521061
  17. Cynthia WalkerSocial Worker1265016026
  18. Ann Walkins, RBTOther Technician1700233434
  19. Lisa Wall, MFTMarriage & Family Therapist1346301942
  20. Brandie Walton, PA-CPhysician Assistant1396921573
  21. Charles Walworth, MDSpecialist1629057625
  22. Michael Wan, M.D.Obstetrics & Gynecology Physician1588628788
  23. Arden WangBehavior Technician1659057495
  24. Jiayi WangMarriage & Family Therapist1972374718
  25. John Wang, M.D.Internal Medicine Physician1720048291
  26. Lillian Wang, PA-C, CPHPhysician Assistant1902383284
  27. Sarah Wang, DDSGeneral Practice Dentistry1780100065
  28. Tenzing Wangyal, MDInternal Medicine Physician1689675365
  29. Thomas Warner, PTOrthopedic Physical Therapist1902105000
  30. Austin Warren, DCChiropractor1174416655
  31. Daniel Warren, D.C.Chiropractor1235230889
  32. Eliza Warren, RNCase Management Registered Nurse1306384227
  33. John Warren, D.C.Chiropractor1528169091
  34. Nikhil Warrier, M.D.Clinical Cardiac Electrophysiology Physician1538486675
  35. Fritzi WashingtonMental Health Counselor1114477734
  36. Elizabeth WatsonPain Medicine (Anesthesiology) Physician1457858227
  37. Shanelle WatsonMental Health Counselor1568626729
  38. Michael Watts, PHARM.DPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1881079309
  39. Matthew Weaver, BTOther Technician1396193462
  40. Mary WebbBehavior Analyst1821342460
  41. Patricia WeberCase Manager/Care Coordinator1528471356
  42. Richard Weber, PHDPsychologist1841397734
  43. Christine Weidemann, DPTPhysical Therapist1023328416
  44. Jessica Weidner, NURSE PRACTITIONERFamily Nurse Practitioner1629596911
  45. Sean Weis, PT, DPTPhysical Therapist1285253880
  46. Charlene Weitz, C.R.N.A.Certified Registered Nurse Anesthetist1336448430
  47. Karen WellsBehavior Technician1902309081
  48. Susan Wergles, N.P.Adult Health Nurse Practitioner1508850710
  49. Jacqueline WertHearing Instrument Specialist1740415728
  50. Cheryl Westlake, PHD, RN, ACNS-BCAdministrator Registered Nurse1225819170

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.