Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Michael R Dunniway, PAC

Physician Assistant in Chewelah, WA · enumerated 2007.

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

National Provider Identifier

1851518625

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Registry record

Entity type Individual (Type 1)

Name Mr. Michael R Dunniway

Credential PAC

Sex Male

Practice address 518 E Clay Ave, Chewelah, WA, 99109

Phone (509) 935-8424

Fax (509) 935-8402

Enumeration date Apr 20, 2007

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA10001093 (WA) Primary

Other identifiers

Identifier	Type	State	Issuer
127374	Other	WA	LABOR & INDUSTRIES ID #
8400855	Medicaid	WA	-

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 1851518625 active?

Yes, as of the latest NPPES snapshot, NPI 1851518625 is active (record last updated 2007-07-09).

How do I verify Michael Dunniway's NPI record?

Cross-check NPI 1851518625 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 2007-07-09.