Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Brenna Duffy

Pharmacist in San Jacinto, CA · enumerated 2018.

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

National Provider Identifier

1669961967

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Registry record

Entity type Individual (Type 1)

Name Brenna Duffy

Sex Female

Practice address 1861 S San Jacinto Ave, San Jacinto, CA, 92583

Phone (951) 487-8409

Enumeration date May 2, 2018

Last updated in NPPES May 2, 2018

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 75867 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1669961967 active?

Yes, as of the latest NPPES snapshot, NPI 1669961967 is active (record last updated 2018-05-02).

How do I verify Brenna Duffy's NPI record?

Cross-check NPI 1669961967 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-02.