Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Chalsea Landeros-Guillen

Clinical Social Worker in Commerce, CA · enumerated 2024.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1477396976

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Registry record

Entity type Individual (Type 1)

Name Chalsea Landeros-Guillen

Sex Female

Practice address 1500 S Mcdonnell Ave, Commerce, CA, 90040

Phone (323) 981-4301

Enumeration date Jun 13, 2024

Last updated in NPPES Feb 14, 2025

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License ASW122936 (CA) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Chalsea Landeros-Guillen's NPI record?

Cross-check NPI 1477396976 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1477396976 active?

Yes, as of the latest NPPES snapshot, NPI 1477396976 is active (record last updated 2025-02-14).

Other providers at this practice address

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Los Angeles County Department of Mental Health Mental Health Clinic/Center (Including Community Mental Health Center) · Commerce, CA NPI 1255355673 County of Los Angeles Auditor Controller Clinic/Center · Los Angeles, CA NPI 1407951783 Humberto Yarleque Marriage & Family Therapist · Commerce, CA NPI 1376627026 James Huddleston Rehabilitation Practitioner · Commerce, CA NPI 1568540896 Carolyn Myles Clinical Social Worker · Los Angeles, CA NPI 1225116361 Juereata Butler Marriage & Family Therapist · Commerce, CA NPI 1275612137 Kalsoom Tufail Psychiatry Physician · Commerce, CA NPI 1841361037 Angel Kelly-Blaydes Clinical Social Worker · Los Angeles, CA NPI 1235201385

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-14.