Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Wendy Nadia Duffy, RPH

Pharmacist in Everett, WA · enumerated 2006 · practices at Optum Care Washington Pllc.

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

National Provider Identifier

1720059439

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Registry record

Entity type Individual (Type 1)

Name Mrs. Wendy Nadia Duffy

Credential RPH

Sex Female

Practice address 4027 Hoyt Ave, Everett, WA, 98201

Phone (425) 304-8476

Enumeration date Jan 30, 2006

Last updated in NPPES Oct 29, 2025

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License PH00047622 (WA) Primary

RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH 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 1720059439 active?

Yes, as of the latest NPPES snapshot, NPI 1720059439 is active (record last updated 2025-10-29).

How do I verify Wendy Duffy's NPI record?

Cross-check NPI 1720059439 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 2025-10-29.