Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Casie Chi Nguyen, FNP

Q: What is the NPI number for Casie Nguyen?

The National Provider Identifier (NPI) for Casie Nguyen is 1801155726, a Type 1 (individual) record in the CMS NPPES registry.

Family Nurse Practitioner in Fountain Valley, CA · enumerated 2012.

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

National Provider Identifier

1801155726

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Registry record

Entity type Individual (Type 1)

Name Casie Chi Nguyen

Credential FNP

Sex Female

Practice address 18111 Brookhurst St Ste 6100, Fountain Valley, CA, 92708

Phone (714) 968-6789

Fax (714) 202-2626

Enumeration date May 12, 2012

Last updated in NPPES Oct 22, 2025

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP20806 (CA) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP credential

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 → Validate an NPI →

Frequently asked questions

What is the NPI number for Casie Nguyen?

The National Provider Identifier (NPI) for Casie Nguyen is 1801155726, a Type 1 (individual) record in the CMS NPPES registry.

Where does Casie Nguyen practice?

The practice location on file with NPPES is in Fountain Valley, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-22.