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 25 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. David Moss, MDEmergency Medicine Physician1598701526
  2. Robert Moss, M.D.Hematology & Oncology Physician1861503609
  3. Essam Mostafa, M.D.Nephrology Physician1316932270
  4. Kimberly Motta, M.D.Internal Medicine Physician1770672123
  5. Kuei Ho Mou, PHARM.D.Pharmacist1457561318
  6. Daniel MoyaBehavior Technician1831654102
  7. Erica MuSpeech-Language Pathologist1639056054
  8. Michael Muffoletto, D.C.Chiropractor1720271745
  9. Gurpreet Multani, MDHematology & Oncology Physician1417117979
  10. Tiffany Munholland, LCSWClinical Social Worker1700334554
  11. Michelle Munns, RBTOther Technician1790151686
  12. Andrea MunozRehabilitation Practitioner1417623174
  13. Doris MunozBehavior Analyst1063900652
  14. Elisa Murillo, MA, AMFTMarriage & Family Therapist1942701164
  15. Yvette Muro, BARehabilitation Practitioner1992226146
  16. Charles Murphy, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1487693735
  17. Breanna Murray, PA-CMedical Physician Assistant1063872117
  18. Rachel Murray, LMFTMarriage & Family Therapist1487108346
  19. Austin Murrow, OTR/LOccupational Therapist1386223907
  20. Ariel MurtaghFamily Medicine Physician1770042541
  21. Sherryl MusserCommunity Health Worker1194020107
  22. Chelyse Myers, LCSWClinical Social Worker1780159418
  23. Sarada Mylavarapu, M.D.Anesthesiology Physician1376502195
  24. Gihyun MyungRheumatology Physician1902160922
  25. Andrea Nacca, PAPhysician Assistant1184935926
  26. Tiffany Nagai, MSSpeech-Language Pathologist1194953745
  27. Anne Nagel, D.D.S.Dentist1891164760
  28. Chris Nagel, DDSGeneral Practice Dentistry1801938683
  29. Irene Nagel, P.A.-CSurgical Physician Assistant1255447496
  30. Vincent Nagel, D.D.S.Dentist1891904694
  31. Bradley NajacPhysician Assistant1265804132
  32. Tomoko Nakamizo-Mukasa, M.A.Speech-Language Pathologist1487897120
  33. Grace Nakamura, PAPhysician Assistant1639793110
  34. Gabriela NakanoAcute Care Nurse Practitioner1194077214
  35. Ji Yun NamClinical Psychologist1982159349
  36. Deepmala Nandanwar, M.D.Neurology Physician1942685094
  37. Lisa NaruoPharmacist1366793440
  38. Nahid Nasr, M.D.Anesthesiology Physician1962664847
  39. Pedram Nassi, PHARM DPharmacist1689225039
  40. Angeli Mae Nazareth, PHARMDPharmacist1538839683
  41. Robert Neilan, M.D.Hospitalist Physician1689763724
  42. Eric Nelson, MDEmergency Medicine Physician1780620849
  43. Haley Nelson, BTOther Technician1891176376
  44. Jocelyn Neri-RomeroRehabilitation Practitioner1972289585
  45. Jennie Newman, LCSWClinical Social Worker1184260945
  46. Jennifer NewsomSchool Registered Nurse1326975830
  47. Daniel Ng, PHARM.DPharmacist1033569959
  48. Robert Ng, PHARMDPharmacist1760133219
  49. Elizabeth Nghiem, M.D.Infectious Disease Physician1083626212
  50. Catherine Ngo, NPFamily Nurse Practitioner1982257010

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.