2026 data CMS NPPES NUCC Taxonomy

Doctors in Los Angeles, CA

Compiled from official public sources by the PlainDoctor editorial team.

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

67,148
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Student in an Organized Health Care Education/Training Program
Top specialty
7,609 providers
California
State
CA

67,148 healthcare providers across 20 specialties

Los Angeles, California appears in the CMS National Plan and Provider Enumeration System with 67,148 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 Angeles - 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 Angeles 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 Los Angeles is weighted toward Student in an Organized Health Care Education/Training Program (7,609 clinicians, followed by Behavior Technician with 4,568 and Marriage & Family Therapist with 3,842). 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 Angeles reports roughly 172.3 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.

Within California, Los Angeles ranks #1 of 805 cities tracked by provider count, accounting for 7.2% of the state's registered providers. Of California's most common specialties, Behavior Analyst is the most prominent one with no provider currently listing a Los Angeles practice address, a coverage gap Los Angeles patients typically fill by traveling to a larger nearby hub.

For Los Angeles 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.

67,148
Providers
20
Specialties
#1
of 805 CA cities
7.2%
of CA providers
172.3
Per 100K (state)

Which specialties are most common in Los Angeles

Student in an Organized Health Care Education/Training Program 7,609
Behavior Technician 4,568
Marriage & Family Therapist 3,842
Clinical Social Worker 3,544
Case Manager/Care Coordinator 2,925
Mental Health Counselor 2,489
Addiction (Substance Use Disorder) Counselor 2,174
Pharmacist 1,780
Internal Medicine Physician 1,630
Rehabilitation Practitioner 1,534
Physical Therapist 1,165
Acupuncturist 1,160
Community Health Worker 1,140
Social Worker 1,082
Clinical Psychologist 1,041
Family Nurse Practitioner 996
Pediatrics Physician 969
Physician Assistant 886
Dentist 884
General Practice Dentistry 879

Healthcare Providers (Page 31)

Name
Isaac Alonzo
Behavior Technician
Jill Alonzo
Marriage & Family Therapist
Joanne Alonzo
Behavior Analyst
Kathleen Alonzo
Licensed Vocational Nurse
Kristyn Alonzo, PT, DPT
Physical Therapist
Lisette Alonzo, RDA
Dental Assistant
Maria Alonzo
Marriage & Family Therapist
Oscar Alonzo, DDS
Oral and Maxillofacial Surgery (Dentist)
Philip Alonzo, D.P.T.
Physical Therapist
Toni Aloyan, MD
Student in an Organized Health Care Education/Training Program
David Alpan, DDS, MSD
Orthodontics and Dentofacial Orthopedics Dentistry
Beatriz Alpasan, BCBA
Assistant Behavior Analyst
Lousine Alpern, MD
Diagnostic Radiology Physician
Randi Alpern, RT
Recreation Therapist
Lawrence Alpert
Registered Respiratory Therapist
Lindsay Alpert, M.A.
Specialist
Kareene Alprecht
Counselor
Saif Alqaseer
Pharmacist
Izhaq Alquaddoomi
Behavior Technician
Jennifer Alquijay, PSY.D.
Clinical Psychologist
Marta Alquijay, PH.D.
Psychologist
Misk Alrawashdeh
Student in an Organized Health Care Education/Training Program
Basma Khalid R Alromaih
Speech-Language Pathologist
Alalya Alsabah, MD
Student in an Organized Health Care Education/Training Program
Sarah Essam Alsaleh
General Practice Dentistry
Sana Alsamman
Student in an Organized Health Care Education/Training Program
Najeeb Alshak, MD
Anatomic Pathology Physician
Majid Alsharif
Marriage & Family Therapist
Charles Alson, OD
Optometrist
Chandra Alston
Rehabilitation Practitioner
Douglas Alston, D.D.S
General Practice Dentistry
Shauneequa Alston
Mental Health Counselor
Noemi Alsup
Clinical Social Worker
Muhannad Alsyouf, M.D.
Urology Physician
Winston Alt, MD
Psychiatry Physician
Resha Altai
Mental Health Counselor
Mayra Altamira, LCSW
Clinical Social Worker
Brenda Altamirano
Speech-Language Pathologist
Elvia Altamirano
Health & Wellness Coach
Julie Altamirano, RN
Registered Nurse
Melony Altamirano
Marriage & Family Therapist
Naomi Altamirano
Behavior Technician
Robert Altamirano
Case Manager/Care Coordinator
Samuel Altamirano
Registered Respiratory Therapist
Sebastian Altamirano, D.C.
Chiropractor
Lauren Altaweel
Clinical Social Worker
Derek Altema
Emergency Medicine Physician
Lisa Altemus, M.A., LMFT
Marriage & Family Therapist
Xiaodan Altenbach, AMFT
Mental Health Counselor
Marie Altendahl
Student in an Organized Health Care Education/Training Program

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 Angeles, CA?
There are 67,148 registered healthcare providers in Los Angeles, CA, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Los Angeles?
The most common specialties in Los Angeles are Student in an Organized Health Care Education/Training Program, Behavior Technician, Marriage & Family Therapist, Clinical Social Worker, Case Manager/Care Coordinator. Student in an Organized Health Care Education/Training Program has the most providers with 7,609.

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 PlainDoctor editorial team.