Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Theresa Erin Duggan

Family Nurse Practitioner in Wailuku, HI · enumerated 2015.

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

National Provider Identifier

1770950669

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Registry record

Entity type Individual (Type 1)

Name Theresa Erin Duggan

Sex Female

Practice address 2180 Main St, Wailuku, HI, 96793

Phone (808) 242-6464

Enumeration date Aug 26, 2015

Last updated in NPPES Jun 26, 2023

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APRN-3910 (HI) Primary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP60594369 (WA) 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 Theresa Duggan practice?

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

What is the NPI number for Theresa Duggan?

The National Provider Identifier (NPI) for Theresa Duggan is 1770950669, 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 2023-06-26.