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 17 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. Jenny JooAdult Health Nurse Practitioner1821411570
  2. Haeun JunBehavior Technician1508717950
  3. Jina JungPharmacist1851765705
  4. Joyce Jung Machin, OTR/LPediatric Occupational Therapist1245535434
  5. Peyman KabolizadehRadiation Oncology Physician1093941171
  6. Amil KadicPulmonary Diagnostics Certified Respiratory Therapist1528821931
  7. Jane Kakkis, M.D.Specialist1598715427
  8. Sridevi Kalyanasundaram, DNPFamily Nurse Practitioner1164950085
  9. Jon Kamada, PHARM.D.Pharmacist1437205846
  10. Sunday Kamai-Eguires, BTOther Technician1174996235
  11. Lynn Kanda, P.T., O.C.S.Physical Therapist1104864701
  12. Joel Kang, BCBABehavior Analyst1871959957
  13. Nina Kang, PHARMDPharmacist1922654144
  14. Vincent Kao, DOGastroenterology Physician1649570268
  15. Dania KaoudBehavior Technician1932828845
  16. Donald Karon, M.D.Radiation Oncology Physician1982668216
  17. Janice Kassawat, O.D.Optometrist1770909657
  18. Martha KatauraRegistered Dietitian1881063121
  19. Lisa Kato, D.D.S.General Practice Dentistry1881798825
  20. Robert Katzen, M.D.Family Medicine Physician1376552174
  21. Fauzia Kausar, AUD., M.A.Audiologist1407968985
  22. Daniel Ke, RPTOrthopedic Physical Therapist1215358650
  23. April Keenan, M.S., CCC-SLPSpeech-Language Pathologist1457581761
  24. Christine KellerBehavior Technician1003765215
  25. David Kendis, PSYDPsychologist1265807119
  26. Jyotsna Keni, M.D.Pediatric Endocrinology Physician1104061407
  27. Diane Kennedy, N.P.Women's Health Nurse Practitioner1467655092
  28. Carolyn Kennis, CRNACertified Registered Nurse Anesthetist1255413431
  29. Allison KerrBehavior Technician1568388635
  30. James KerrAddiction (Substance Use Disorder) Counselor1396242418
  31. Laura Ketcham, BAMental Health Counselor1467056028
  32. Mary-Ann Khamis, D.D.S.Dentist1861827198
  33. Angela KhamphaBehavior Technician1477188670
  34. Ahad Khan, NP-CFamily Nurse Practitioner1477020246
  35. Jawad Khan, M.D.Orthopaedic Hand Surgery Physician1003115619
  36. Tony Khan, DOHospitalist Physician1255625786
  37. Zafar Khan, M.D.Orthopaedic Surgery of the Spine Physician1851329874
  38. Brandon Khaw, MDInternal Medicine Physician1568453637
  39. Christina Khodavandi, RNCommunity Health Registered Nurse1164220265
  40. Tommy KhuongBehavior Technician1275092934
  41. Penelope KiblerBehavior Technician1154817708
  42. Calvin KieuOrthodontics and Dentofacial Orthopedics Dentistry1265100325
  43. Chan Kieu, M.D.Anesthesiology Physician1750344735
  44. Kevin Kieu, D.D.S., M.S.Orthodontics and Dentofacial Orthopedics Dentistry1497863765
  45. Toquynh Kieu, M.D.Pediatrics Physician1093895674
  46. Abigail Kim, BTOther Technician1700317609
  47. Andrew Kim, DDSGeneral Practice Dentistry1073843660
  48. Chung KimNurse Practitioner1386070894
  49. Ephraim KimOther Technician1831697010
  50. Jamie Kim, M.D.Obstetrics & Gynecology Physician1225187388

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.