2026 data CMS NPPES NUCC Taxonomy

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
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Behavior Technician
Top specialty
205 providers
California
State
CA

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 NPPES data is self-reported and refreshed monthly, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.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.

2,193
Providers
20
Specialties
5.6
Per 100K (state)

Which specialties are most common in Fountain Valley

Behavior Technician 205
Pharmacist 142
Marriage & Family Therapist 103
Internal Medicine Physician 95
Other Technician 74
Physician Assistant 65
Clinical Social Worker 60
Mental Health Counselor 55
Physical Therapist 53
Chiropractor 52
Family Medicine Physician 46
Anesthesiology Physician 45
Family Nurse Practitioner 43
Pediatrics Physician 43
Specialist 43
Dentist 43
General Practice Dentistry 41
Rehabilitation Practitioner 40
Student in an Organized Health Care Education/Training Program 38
Social Worker 36

Healthcare Providers

Name
TONI ABAD
Psychologist
MANOOCHEHR ABADIAN SHARIFABAD, M.D.
Pulmonary Disease Physician
ALTHEA ABAQUETA, BCBA
Behavior Analyst
GAIL FRANCES LIEZL ABCEDE, M.D.
Internal Medicine Physician
MARIAM ABDELSHAHED
Marriage & Family Therapist
REGINALD ABRAHAM, M D
Specialist
KEITH ACERON, DPM
Foot & Ankle Surgery Podiatrist
CECILIA ACOSTA
Rehabilitation Practitioner
OLIVIA ACOSTA
Behavior Technician
VICTORIA ACOSTA
Behavior Technician
CAROL ADAMS, R.D.
Registered Dietitian
JAN ADAMS, M.D.
Plastic Surgery Physician
MARICELA ADRIAN
Behavior Technician
SIMON AFEEF
Other Technician
VEDA AFSAHI, DDS
Dentist
COSETTE AGUAYO
Behavior Analyst
CLAUDIA AGUILAR, MASSAGE THERAPIST
Massage Therapist
THELMA AGUILAR
Behavior Technician
JANELLE AGUSTIN, PHARMD
Pharmacist
MEHRDAD AHDOOT, PHARMD
Pharmacist
ZAVIER AHMED, M.D.
Nephrology Physician
AMY AHN, OTR/L
Occupational Therapist
NICHOLAS AIELLO, MSW, LSW
Social Worker
SARA AJIFU - TULLY, LCSW
Clinical Social Worker
KIMBERLY AKAMINE, M.S.
Marriage & Family Therapist
LORI AKASAKA, LCSW
Clinical Social Worker
SHIVA AKHAVAN, HIS
Hearing Instrument Specialist
MARIA AKHNOUKH
Student in an Organized Health Care Education/Training Program
DEEMA AL-OMAR
Social Worker
AHMED AL-SADEK, M.D.
Internal Medicine Physician
DANA AL-SAYYED
Oral and Maxillofacial Surgery (Dentist)
RUNEL ALANES, MPT
Physical Therapist
SARAH ALANNOUF
Speech-Language Assistant
SAMUEL ALBERT, M.D.
Psychiatry Physician
SHLOMI ALBERT, M.D.
Urology Physician
CHRISTINE ALBRECHT, CRNP
Family Nurse Practitioner
AZARIA ALEXANDER
Student in an Organized Health Care Education/Training Program
GABRIELA ALFONSO DIAZ
Behavior Technician
HASSAN ALHAOUASLI, DDS
Dentist
AFSHAN ALI, M.D.
Pediatric Hematology & Oncology Physician
MIR ALI, MD
Specialist
IMAN ALKAM, BEHAVIOR TECHNICIAN
Other Technician
AFDAL ALLAM, M.D.
Family Medicine Physician
CORRINE ALLEN, BT
Other Technician
KAREN ALLEN, PHD
Clinical Psychologist
KATHRYN ALLEN, MD
Family Medicine Physician
ANTHONY ALLAN ALONSO, PA-C
Physician Assistant
ELYSSA ALVAREZ
Behavior Technician
FRANCES ALVAREZ
Behavior Technician
SAMANTHA AMMANN
Rehabilitation Practitioner

Nearby Cities in California

Other California cities with provider coverage in the CMS NPPES registry.

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Fountain Valley, CA?
There are 2,193 registered healthcare providers in Fountain Valley, CA, covering 20 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 205.

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.