2026 data CMS NPPES NUCC Taxonomy

Doctors in Los Alamitos, CA

Active healthcare providers in Los Alamitos sourced from the CMS NPPES weekly file — no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.

995
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Marriage & Family Therapist
Top specialty
94 providers
California
State
CA

995 healthcare providers across 20 specialties

Los Alamitos, California appears in the CMS National Plan and Provider Enumeration System with 995 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 Los Alamitos — 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 Los Alamitos practice location on file.

The provider mix in Los Alamitos is weighted toward Marriage & Family Therapist (94 clinicians, followed by Addiction (Substance Use Disorder) Counselor with 75 and Behavior Technician with 44). 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, Los Alamitos reports roughly 2.6 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 Los Alamitos 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 NPPES data is self-reported and refreshed monthly, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.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.

995
Providers
20
Specialties
2.6
Per 100K (state)

Which specialties are most common in Los Alamitos

Marriage & Family Therapist 94
Addiction (Substance Use Disorder) Counselor 75
Behavior Technician 44
Internal Medicine Physician 40
Physical Therapist 37
General Practice Dentistry 29
Physician Assistant 26
Dentist 26
Chiropractor 25
Mental Health Counselor 22
Clinical Social Worker 21
Family Nurse Practitioner 20
Clinical Psychologist 20
Family Medicine Physician 19
Emergency Medicine Physician 19
Speech-Language Assistant 18
Pharmacist 18
Specialist 17
Speech-Language Pathologist 15
School Psychologist 14

Healthcare Providers (Page 20)

Name
ALISON WILEY
Physical Therapy Assistant
DANIEL WILLIAMS, MFT
Marriage & Family Therapist
DIANA WILLIAMS, FNP
Family Nurse Practitioner
MEGHAN WILLIAMS, M.A.,LMFT
Marriage & Family Therapist
SHEA WILLIAMS, AMFT, APCC
Mental Health Counselor
TROY WILLIAMSON
Physician Assistant
JACQUELINE WILSON, CADCII ICADC
Addiction (Substance Use Disorder) Counselor
SCOTT WILSON, ASW
Clinical Social Worker
HOWARD WINER, DDS
Oral and Maxillofacial Surgery (Dentist)
JOSHUA WINER, DDS
General Practice Dentistry
BRET WITTER, M.D.
Cardiovascular Disease Physician
ASHLEY WOLFLEY
Behavior Technician
GREGORY WONG, D.C.
Chiropractor
ING WONG, MD
Nephrology Physician
MAN WAI WONG
Mental Health Counselor
MARIE ELLINOR WONG
Marriage & Family Therapist
PETRA WONG, MD
Internal Medicine Physician
CHRISTOPHER WOODSON, M.D.
Sports Medicine (Orthopaedic Surgery) Physician
ERIN WRIGHT, BSN, RN, CNOR, RNFA
Registered Nurse First Assistant
LAUREN WRIGHT
Physical Therapist
DEREK WU, M.D.
Pediatrics Physician
HENRY WU, M.D.
Urology Physician
STEPHANIE WU
Speech-Language Pathologist
TANZHEN WU, M.D.
Anesthesiology Physician
MAMIKO YAMAZATO, LCSW
Social Worker
TAO YANG, MD
Cytopathology Physician
AMANDA YEE
Behavior Technician
ARLENE YEE, LCSW
Clinical Social Worker
BONNIE YEE
Clinical Psychologist
IVANA YI
Student in an Organized Health Care Education/Training Program
VIVIAN YIN, DDS
Dentist
ELISA YOO, M.D.
MOHS-Micrographic Surgery Physician
INSUN YOON, D.M.D.
General Practice Dentistry
MERIN YOSHIDA, DPM
Podiatrist
GEORGE YOUNG, MS, DPT, OCS
Physical Therapist
JUSTINA YOUNG
Physical Therapist
LISA YOUNG, M.A., MFT
Marriage & Family Therapist
LISHELLE YOUNGSMA GRANT, LMFT
Marriage & Family Therapist
AUSTIN YU, MD
Critical Care Medicine (Internal Medicine) Physician
JEFF YU, M.D.
Pediatrics Physician
DAPHNE ZAGNOEV, PSYD
Clinical Psychologist
MICHAEL ZELL, DDS
General Practice Dentistry
MARGARET ZIDEK, PT
Physical Therapist
CHRISTIAN ZIMMERMANN, MD
Emergency Medicine Physician
VERONICA ZOLETA, NP
Family Nurse 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 Los Alamitos, CA?
There are 995 registered healthcare providers in Los Alamitos, CA, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Los Alamitos?
The most common specialties in Los Alamitos are Marriage & Family Therapist, Addiction (Substance Use Disorder) Counselor, Behavior Technician, Internal Medicine Physician, Physical Therapist. Marriage & Family Therapist has the most providers with 94.

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.