Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katherine Guardado, FNP

Family Nurse Practitioner in Northridge, CA · enumerated 2017 · practices at El Proyecto Del Barrio, Inc..

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

National Provider Identifier

1821516535

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Registry record

Entity type Individual (Type 1)

Name Katherine Guardado

Credential FNP

Sex Female

Practice address 18250 Roscoe Blvd Ste 200, Northridge, CA, 91325

Phone (818) 721-4800

Enumeration date Sep 1, 2017

Last updated in NPPES May 13, 2019

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95007215 (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

Is NPI 1821516535 active?

Yes, as of the latest NPPES snapshot, NPI 1821516535 is active (record last updated 2019-05-13).

How do I verify Katherine Guardado's NPI record?

Cross-check NPI 1821516535 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

El Proyecto Del Barrio, Inc. Federally Qualified Health Center (FQHC) · Northridge, CA NPI 1093181448 Nathalie Gin Family Medicine Physician · Northridge, CA NPI 1578204814

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-05-13.