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

Dr. Matthew William Mcmillan, BDENT (DDS)

General Practice Dentistry in Neah Bay, WA · enumerated 2008 · practices at Sophie Trettevick Indian Health Center.

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

National Provider Identifier

1689832958

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Registry record

Entity type Individual (Type 1)

Name Dr. Matthew William Mcmillan

Credential BDENT (DDS)

Sex Male

Practice address Neah Bay, WA, 98357

Phone (360) 645-2459

Enumeration date May 23, 2008

Last updated in NPPES Jul 30, 2009

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

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License DE 60087683 (WA) 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.

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Frequently asked questions

How do I verify Matthew Mcmillan's NPI record?

Cross-check NPI 1689832958 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1689832958 active?

Yes, as of the latest NPPES snapshot, NPI 1689832958 is active (record last updated 2009-07-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-07-30.