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 18 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. Jeanie Kim, WHNPWomen's Health Nurse Practitioner1336022300
  2. Jiyoung KimMarriage & Family Therapist1437901113
  3. Kenneth Kim, M.DPediatric Critical Care Medicine Physician1922002468
  4. Kirsten Kim, PA-CPhysician Assistant1629403647
  5. Kristen KimMarriage & Family Therapist1740909829
  6. Quy Kim, DDSPediatric Dentistry1386645984
  7. Stephanie Kim, D.O.Physical Medicine & Rehabilitation Physician1700107265
  8. Sun KimRegistered Dietitian1841622214
  9. Michael Kim-Orden, MDAdult Reconstructive Orthopaedic Surgery Physician1326457839
  10. Jason Kina, A.S., SLPASpeech-Language Assistant1760956635
  11. Megan Kleschka, OCCUPATIONAL THERAPYOccupational Therapy Assistant1437924354
  12. Sandra Kluwe, M.D.Anesthesiology Physician1083676688
  13. Gregory Knobbe, D.C,Sports Physician Chiropractor1669668711
  14. Nina KnoxBehavior Technician1184214991
  15. Andrew Ko, MDPediatrics Physician1689744328
  16. Robert Kobus, D.C.Chiropractor1780774844
  17. Elizabeth KolozsvariBehavior Technician1104548247
  18. Lalita Komanapalli, MDInternal Medicine Physician1578560884
  19. Jacob Koopman, DOInternal Medicine Physician1942798061
  20. Marie Kopaczewski, PT, DPTPhysical Therapist1689370074
  21. Rebecca Koppel, DPTPhysical Therapist1649874223
  22. Sharon Korchin, OTPediatric Occupational Therapist1194862060
  23. Sanford Koyama, O.D.Optometrist1346233798
  24. Nicholas Kraetzer, D.C.Chiropractor1770664476
  25. Julie Kramer, MSMFTMarriage & Family Therapist1881908952
  26. Rachael Krause, M.D.Pediatrics Physician1548437809
  27. Chelsea KroneHearing Instrument Specialist1952839169
  28. Aaron Kropiewnicki, PTAPhysical Therapy Assistant1184482242
  29. Celeste Krueger, MHS, CCC-SLPSpeech-Language Pathologist1750314654
  30. Michael Kuhle, LCSWClinical Social Worker1346673878
  31. Mark Kumamoto, M.D.Anesthesiology Physician1255393518
  32. Suzie Kunakoff, RDRegistered Dietitian1134712748
  33. Richard KuoMental Health Counselor1073204814
  34. Su Yong Kuo, MDInternal Medicine Physician1861569436
  35. Bachar Kurdi, M.D.Endocrinology, Diabetes & Metabolism Physician1750483327
  36. Vitaly Kushnir, M.D.Reproductive Endocrinology Physician1750526265
  37. Ronald Kuykendall, O.D.Optometrist1871654103
  38. Bjarne Kvarnstrom, DDSGeneral Practice Dentistry1851406177
  39. John Kwon, PT, DPT, OCSOrthopedic Physical Therapist1104988708
  40. Young Kwon, M.D.Anesthesiology Physician1780633909
  41. Nathan Kwong, MDInternal Medicine Physician1437654340
  42. Vincent KyStudent in an Organized Health Care Education/Training Program1780109819
  43. Anhtu La, M.D.Anesthesiology Physician1265413165
  44. Vicente LagunasBehavior Technician1538862875
  45. Juliet Lai, PHARM.D.Pharmacist1952440067
  46. Kha Lai, MDAnesthesiology Physician1427438670
  47. Tim Lai, M.D.Neurology Physician1295094324
  48. Sujata Lalla-Reddy, M.D.Infectious Disease Physician1891711909
  49. Jeanie Lam, FNP-CFamily Nurse Practitioner1982075859
  50. Jennie Lam, OTR/L, OTDOccupational Therapist1932770260

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.