Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret Duggan

Registered Nurse in Shoreline, WA · enumerated 2026.

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

National Provider Identifier

1144174939

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Registry record

Entity type Individual (Type 1)

Name Margaret Duggan

Sex Female

Practice address 16549 Aurora Ave N, Shoreline, WA, 98133

Phone (206) 533-2600

Fax (206) 788-3642

Enumeration date Feb 26, 2026

Last updated in NPPES Feb 26, 2026

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN61384225 (WA) Primary

171M00000X Case Manager/Care Coordinator Other Service Providers · License RN61384225 Secondary

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

Where does Margaret Duggan practice?

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

What is the NPI number for Margaret Duggan?

The National Provider Identifier (NPI) for Margaret Duggan is 1144174939, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-26.