Doctors in Fountain Valley, CA
Active healthcare providers in Fountain Valley sourced from the CMS NPPES weekly file — no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.
2,193 healthcare providers across 20 specialties
Fountain Valley, California appears in the CMS National Plan and Provider Enumeration System with 2,193 registered healthcare providers spanning 20 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.
The provider mix in Fountain Valley is weighted toward Behavior Technician (205 clinicians, followed by Pharmacist with 142 and Marriage & Family Therapist with 103). 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.
For Fountain Valley patients, this directory is most useful as a starting shortlist — searching by specialty narrows the 690-taxonomy roster to clinicians with the relevant training, and each provider page links to NPI, state licensing boards, and the NPPES registry for credential verification. 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 NPPES data is self-reported and refreshed monthly, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients. Nothing on this page substitutes for consulting a licensed clinician about your personal health decisions.
Which specialties are most common in Fountain Valley
Healthcare Providers (Page 29)
| Name |
|---|
| TRUNG NGUYEN, M.D. Ophthalmology Physician |
| TU NGUYEN, MD Anesthesiology Physician |
| TUAN NGUYEN, M.D. Cardiovascular Disease Physician |
| VAN NGUYEN, PHARMACIST Pharmacist |
| VINA NGUYEN, M. D. Hospitalist Physician |
| VU NGUYEN Foot & Ankle Surgery Podiatrist |
| VU NGUYEN Behavior Technician |
| WILLIAM NGUYEN Student in an Organized Health Care Education/Training Program |
| XUANMAI NGUYEN Registered Dietitian |
| YVONNE NGUYEN Pain Management Pharmacist |
| DIANA NGUYEN PHAM, MD Family Medicine Physician |
| CATHERINE NGUYEN-LOH, DO Family Medicine Physician |
| TRAMY NGUYEN-MOK, M.D. Pediatrics Physician |
| CHRISTINE NGUYEN-SHARMA, PHARM.D. Pharmacist |
| NATHAN NGUYENVU Student in an Organized Health Care Education/Training Program |
| YU-MING NI, MD Internal Medicine Physician |
| ANA NIEVES Clinical Social Worker |
| ADRIANA NIIZAWA, LMFT Marriage & Family Therapist |
| HELEN NINH, DDS Dentist |
| ARVIND NIRULA, M.D. Cardiovascular Disease Physician |
| PHILIP NISCO, DDS Orthodontics and Dentofacial Orthopedics Dentistry |
| SANG NOH, MD Internal Medicine Physician |
| ALISON NORITAKE, O.D. Optometrist |
| RONALD NORMAN, D.D.S. General Practice Dentistry |
| TIFFANY NORWOOD, PHARM D. Pharmacist |
| LEE NOVICK, M.D. Ophthalmology Physician |
| DEREK NOVIDA Marriage & Family Therapist |
| YVONNE NYQUIST, RNP Obstetrics & Gynecology Nurse Practitioner |
| TIMOTHY O'BRIEN, PH.D. Clinical Neuropsychologist |
| ALYSON O'CONNOR, DPT Physical Therapist |
| CLAUDIA O'CONNOR, DDS General Practice Dentistry |
| JOSEPH O'CONNOR, DDS Dentist |
| DEBORAH OATES, N.P. Adult Health Nurse Practitioner |
| NANCY OCAMPO Community Health Worker |
| KIA FELICIA OCTAVIANO, RDN Nutrition Education Nutritionist |
| TOLUWANIMI ODULEYE Psychologist |
| OPHELIA OFORI, BT Other Technician |
| ANGELA OH, MD Ophthalmic Plastic and Reconstructive Surgery Physician |
| JOO YOUNG OH, AMFT Mental Health Counselor |
| JULIE OH, MD Internal Medicine Physician |
| MARCIA OKAWA, CNM Midwife |
| SALMAN OKOUR, M.D Obstetrics & Gynecology Physician |
| ALICIA OLDHAM, OT Occupational Therapist |
| BRENDA OLIVARES, MS, AMFT, APCC Mental Health Counselor |
| ELIZABETH OLLE, M.D Family Medicine Physician |
| ANGELINA OLSON, BT Other Technician |
| OLAMIDE OMOLEWU-DAWODU Behavior Technician |
| JACQUELINE ON, D.C. Chiropractor |
| ELLEN ONG, PHARM.D. Pharmacist |
| JOHN ONG, DO Nephrology Physician |
Nearby Cities in California
Other California cities with provider coverage in the CMS NPPES registry.
Frequently Asked Questions
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Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.