Registry data as of Aug 27, 2026

Doctors and health care providers in Fountain Valley, CA

2,190 individual NPPES records list a Fountain Valley practice address, 99th of 812 California cities. The largest group is behavior technician: 211, 10% of the city's records, against 18% across California.

CMS NPPES registry, loaded Aug 27, 2026 · method · Verify with CMS →

The 8 largest groups in Fountain Valley

Source: CMS NPPES primary taxonomy, loaded Aug 27, 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
  • Behavior Technician rank11th of the 10 California cities with the most

Compared with California as a whole, Fountain Valley has 15× the state's share of other technician records and 0.35× its share of student in an organized health care education/training program records.

Providers in Fountain Valley, alphabetically

  1. Toni AbadPsychologist1518633106
  2. Manoochehr Abadian Sharifabad, M.D.Pulmonary Disease Physician1164655817
  3. Althea Abaqueta, BCBABehavior Analyst1619272853
  4. Gabriel Abarca VillegasBehavior Technician1093657371
  5. Gail Frances Liezl Abcede, M.D.Internal Medicine Physician1902216872
  6. Mariam AbdelshahedMarriage & Family Therapist1053043497
  7. Reginald Abraham, M DSpecialist1720042864
  8. Keith Aceron, DPMFoot & Ankle Surgery Podiatrist1801236740
  9. Cecilia AcostaRehabilitation Practitioner1255853123
  10. Olivia AcostaBehavior Technician1093529273
  11. Victoria AcostaBehavior Technician1659964294
  12. Carol Adams, R.D.Registered Dietitian1164466207
  13. Jan Adams, M.D.Plastic Surgery Physician1427499904
  14. Maricela AdrianBehavior Technician1619708302
  15. Simon AfeefOther Technician1013297407
  16. Veda Afsahi, DDSDentist1992745772
  17. Cosette AguayoBehavior Analyst1326935826
  18. Claudia Aguilar, MASSAGE THERAPISTMassage Therapist1871103473
  19. Thelma AguilarBehavior Technician1114679743
  20. Janelle Agustin, PHARMDPharmacist1033880364
  21. Bernadette Ah-Hing, O.T.Occupational Therapist1679900906
  22. Mehrdad Ahdoot, PHARMDPharmacist1235473935
  23. Narjes AhmadiDentist1487088415
  24. Zavier Ahmed, M.D.Nephrology Physician1255677134
  25. Amy Ahn, OTR/LOccupational Therapist1003317926
  26. Nicholas Aiello, MSW, LSWSocial Worker1831504372
  27. Sara Ajifu - Tully, LCSWClinical Social Worker1124528104
  28. Kimberly Akamine, M.S.Marriage & Family Therapist1831384650
  29. Lori Akasaka, LCSWClinical Social Worker1881197879
  30. Shiva Akhavan, HISHearing Instrument Specialist1679080949
  31. Maria AkhnoukhStudent in an Organized Health Care Education/Training Program1205316932
  32. Deema Al-OmarSocial Worker1205420270
  33. Ahmed Al-Sadek, M.D.Internal Medicine Physician1528097730
  34. Dana Al-SayyedOral and Maxillofacial Surgery (Dentist)1679333959
  35. Runel Alanes, MPTPhysical Therapist1194926352
  36. Sarah AlannoufSpeech-Language Assistant1922649342
  37. Samuel Albert, M.D.Psychiatry Physician1649560137
  38. Shlomi Albert, M.D.Urology Physician1144259946
  39. Christine Albrecht, CRNPFamily Nurse Practitioner1578018396
  40. Azaria AlexanderStudent in an Organized Health Care Education/Training Program1831924158
  41. Gabriela Alfonso DiazBehavior Technician1881316941
  42. Hassan Alhaouasli, DDSDentist1942361175
  43. Afshan Ali, M.D.Pediatric Hematology & Oncology Physician1215953278
  44. Mir Ali, MDSpecialist1184689663
  45. Iman Alkam, BEHAVIOR TECHNICIANOther Technician1770955189
  46. Afdal Allam, M.D.Family Medicine Physician1053486605
  47. Corrine Allen, BTOther Technician1639607765
  48. Karen Allen, PHDClinical Psychologist1588964969
  49. Kathryn Allen, MDFamily Medicine Physician1023058278
  50. Anthony Allan Alonso, PA-CPhysician Assistant1861256117

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 (211 clinicians, followed by Pharmacist with 145 and Marriage & Family Therapist with 96). 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 211.

Source: CMS National Plan and Provider Enumeration System (NPPES), file loaded Aug 27, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.