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 18)

Name
Penelope Kibler
Behavior Technician
Calvin Kieu
Orthodontics and Dentofacial Orthopedics Dentistry
Chan Kieu, M.D.
Anesthesiology Physician
Kevin Kieu, D.D.S., M.S.
Orthodontics and Dentofacial Orthopedics Dentistry
Toquynh Kieu, M.D.
Pediatrics Physician
Abigail Kim, BT
Other Technician
Andrew Kim, DDS
General Practice Dentistry
Chung Kim
Nurse Practitioner
Ephraim Kim
Other Technician
Jamie Kim, M.D.
Obstetrics & Gynecology Physician
Jeanie Kim, WHNP
Perinatal Registered Nurse
Jiyoung Kim
Marriage & Family Therapist
Joshua Kim, MA
Marriage & Family Therapist
Kenneth Kim, M.D
Pediatrics Physician
Kristen Kim
Marriage & Family Therapist
Kyu Seo Kim
Pediatrics Physician
Quy Kim, DDS
Pediatric Dentistry
Stephanie Kim, D.O.
Physical Medicine & Rehabilitation Physician
Sun Kim
Registered Dietitian
Michael Kim-Orden, MD
Orthopaedic Surgery Physician
Jason Kina, A.S., SLPA
Speech-Language Assistant
Megan Kleschka, OCCUPATIONAL THERAPY
Occupational Therapy Assistant
Sandra Kluwe, M.D.
Anesthesiology Physician
Gregory Knobbe, D.C,
Sports Physician Chiropractor
Nina Knox
Behavior Technician
Andrew Ko, MD
Pediatrics Physician
Robert Kobus, D.C.
Chiropractor
Elizabeth Kolozsvari
Behavior Technician
Lalita Komanapalli, MD
Internal Medicine Physician
Jacob Koopman, DO
Internal Medicine Physician
Marie Kopaczewski, PT, DPT
Physical Therapist
Rebecca Koppel, DPT
Physical Therapist
Sharon Korchin, OT
Pediatric Occupational Therapist
Sanford Koyama, O.D.
Optometrist
Nicholas Kraetzer, D.C.
Chiropractor
Julie Kramer, MSMFT
Marriage & Family Therapist
Rachael Krause, M.D.
Pediatrics Physician
Chelsea Krone
Hearing Instrument Specialist
Aaron Kropiewnicki, PTA
Physical Therapy Assistant
Celeste Krueger, MHS, CCC-SLP
Speech-Language Pathologist
Michael Kuhle, LCSW
Clinical Social Worker
Mark Kumamoto, M.D.
Anesthesiology Physician
Suzie Kunakoff, RD
Registered Dietitian
Richard Kuo
Mental Health Counselor
Su Yong Kuo, MD
Internal Medicine Physician
Bachar Kurdi, M.D.
Endocrinology, Diabetes & Metabolism Physician
Vitaly Kushnir, M.D.
Reproductive Endocrinology Physician
Ronald Kuykendall, O.D.
Optometrist
Bjarne Kvarnstrom, DDS
General Practice Dentistry
John Kwon, PT, DPT, OCS
Orthopedic Physical Therapist

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.