NPI Portal NPI Lookup & Verification

Chen Sun

Chen Sun is a Family Nurse Practitioner provider (Nurse Practitioner) practicing in El Monte, CA, registered in the NPPES registry with NPI 1285275263 since 2019.

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NPI 1285275263
Entity type Individual (Type 1)
Name Chen Sun
Sex Female
Practice address 11016 EMERY ST, El Monte, CA, 91731
Phone 6198950413
Enumeration date 2019-10-01
Last updated in NPPES 2025-03-05

Taxonomy & licenses

Taxonomy code Specialty Primary License State
363LF0000X Family Nurse Practitioner Primary 95029964 CA
Copy-ready billing details
Provider: Chen Sun
NPI: 1285275263
Taxonomy: 363LF0000X (Family Nurse Practitioner)
Address: 11016 EMERY ST, El Monte, CA, 91731

Verify this record

Cross-check NPI 1285275263 against the authoritative CMS record: view Chen Sun on the official NPPES registry .

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. Read the full guide or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Chen Sun?
Chen Sun is registered in NPPES with the primary taxonomy of Family Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-03-05.