Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

William Michael Mcduffie

Contractor in Raleigh, NC · enumerated 2024.

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

National Provider Identifier

1831929918

Verified

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Registry record

Entity type Individual (Type 1)

Name William Michael Mcduffie

Sex Male

Practice address Raleigh, NC, 27603

Phone (919) 454-5181

Enumeration date Aug 5, 2024

Last updated in NPPES May 29, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

171WH0202X Home Modifications Contractor Other Service Providers · License 87563 (NC) Secondary

171W00000X Contractor Other Service Providers · License 87563 (NC) 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

What is the NPI number for William Mcduffie?

The National Provider Identifier (NPI) for William Mcduffie is 1831929918, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Mcduffie practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-29.