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

Where this city sits in the corpus

Fountain Valley ranks 96th among 805 California cities by CMS provider count, holding 0.2% of the state's NPIs, led by Behavior Technician.

2,193
NPPES providers in city
96th
of 805 CA cities
0.2%
of California providers
20.5%
in top 3 specialties

Fountain Valley ranks #11 of 10 California cities for Behavior Technician.

Where Fountain Valley ranks among California cities

Provider count vs every California city in CMS NPPES (805 cities)

2,193 Top 12% higher than 88% of 805 cities

0–200: 398 cities (49%). Below this entry. 200–400: 103 cities (13%). Below this entry. 400–600: 45 cities (6%). Below this entry. 600–800: 48 cities (6%). Below this entry. 800–1,000: 29 cities (4%). Below this entry. 1,000–1,200: 15 cities (2%). Below this entry. 1,200–1,400: 17 cities (2%). Below this entry. 1,400–1,600: 15 cities (2%). Below this entry. 2K+: 135 cities (17%). This entry sits in this band. This city 0 2K+ California cities (providers), bucketed by value

Each bar is a band; taller bars hold more cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS National Plan & Provider Enumeration System (NPPES) · 2026

Specialty mix in Fountain Valley

Share of the city's NPPES registrations by NUCC taxonomy

providers

What this shows Behavior Technician is the largest specialty (205 providers, 9.3% of the city), followed by Pharmacist.

Source CMS NPPES · city_top_specialties As of 2026

City vs state specialty index

Specialties Fountain Valley has more, and fewer, of than California average

Each multiple is this city's share of a specialty divided by that specialty's average share across California , Fountain Valley over-indexes other technician at 14.6× the state average and under-indexes student in an organized health care education/training program at 0.35×. This reflects local practice structure, not care quality.

More common here than California average

Less common here than California average

How to read this directory & data limitations

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. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2023 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 (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.

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.

Which specialties are most common in Fountain Valley

Healthcare Providers (Page 16)

Name
Tiffany Huerta
Behavior Technician
David Huh
Pharmacist
Todd Huisken, MFT
Marriage & Family Therapist
Carolyn Hunter, LEP
School Psychologist
Kristen Hunter, PTA
Physical Therapy Assistant
Keun-Heng Huo, M.D.
Orthopaedic Surgery of the Spine Physician
Samiya Hussain, M.D.
Hospitalist Physician
Michele Hutchinson, FNP
Pediatric Nurse Practitioner
Loan Huynh, DDS
General Practice Dentistry
Michael Huynh, DPT
Physical Therapist
Son Huynh, PA-C
Surgical Physician Assistant
Trung Huynh, M.D
Nephrology Physician
Tung Huynh
Pharmacist
Mary Carmen Ibarra, ACSW
Social Worker
Ramona Ibarra Escalera Neri
Marriage & Family Therapist
Abdullah Ibish, MD
Neurology Physician
Marianna Ibrahim, D.D.S.
General Practice Dentistry
Maryanne Ibrahim, M.D.
Student in an Organized Health Care Education/Training Program
Zakkiyya Ibrahim, BEHAVIOR TECHNICIAN
Other Technician
Stephenie Ilagan, BCBA
Behavior Analyst
Maria Elena Imperial, MD
Pediatric Critical Care Medicine Physician
Paula Inge-Linchim, LMFT
Marriage & Family Therapist
Felina Innaci Dass, MD
Internal Medicine Physician
Cora Ip, P.T., D.P.T.
Orthopedic Physical Therapist
Afzaal Iqbal
Pain Medicine (Anesthesiology) Physician
Atif Iqbal, MD
Surgery Physician
Dennis Irving, LCSW
Clinical Social Worker
Susana Isidoro
Behavior Technician
Maria Elena Iturralde, RBT
Other Technician
Nwanyieze Iyalomhe
Clinical Social Worker
Joshua Jackson, APRN
Family Nurse Practitioner
Kathlyn Jackson, MT
Massage Therapist
Lisa Jacobs, M.D.
Pediatrics Physician
Elizabeth Jacobsen
Other Technician
John Jacomo, MD
Family Medicine Physician
Jack Jacoub, M.D.
Internal Medicine Physician
Rosemary Jadia, D.P.M.
Foot & Ankle Surgery Podiatrist
Esther Jahng, RDH
Dental Hygienist
Melanie Jambrosic, MS
Mental Health Counselor
Kenneth James, PHARM.D.
Pharmacist
Ryan Jamison, D.O.
Anesthesiology Physician
Dani Janzen, MPT
Physical Therapist
Laura Jardine, FNP-C
Registered Nurse
Paul Jaruszewski, D.D.S.
General Practice Dentistry
Joanne Jasmin
Behavior Technician
Garrett Jay
Orthopedic Physical Therapist
Mark Jaynes
Emergency Registered Nurse
Kelsey Jepsen, NP
Pediatric Nurse Practitioner
Bailey Jewett, D.C.
Chiropractor
Haresh Jhangiani, M.D.
Specialist

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.
Related guides

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.

Compiled from official public sources by the editorial process.

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 2026-05-20.