Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Michelle Miller, P.A.-C.

Medical Physician Assistant in Mount Vernon, WA · enumerated 2006 · practices at Public Hospital Dist No 1 Skagit.

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

National Provider Identifier

1821100355

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Registry record

Entity type Individual (Type 1)

Name Ms. Michelle Miller

Credential P.A.-C.

Sex Female

Practice address 901 S 5th St, Mount Vernon, WA, 98274

Phone (360) 428-6434

Fax (360) 848-4547

Enumeration date Aug 31, 2006

Last updated in NPPES May 17, 2023

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA60762365 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1821100355 active?

Yes, as of the latest NPPES snapshot, NPI 1821100355 is active (record last updated 2023-05-17).

How do I verify Michelle Miller's NPI record?

Cross-check NPI 1821100355 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 2023-05-17.