Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dynacare Northwest Inc

Clinical Medical Laboratory in Seattle, WA · enumerated 2009 · authorized official William Hayes, Cfo Evp Treasurer.

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

National Provider Identifier

1124351143

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Registry record

Entity type Organization (Type 2)

Legal business name Dynacare Northwest Inc

Practice address 1101 Madison St, Ste 301, Seattle, WA, 98104

Phone (206) 505-1283

Enumeration date Sep 9, 2009

Last updated in NPPES Sep 9, 2009

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories Primary

Authorized official

Name William Hayes

Title Cfo Evp Treasurer

Phone (800) 222-7566

Other identifiers

Identifier	Type	State	Issuer
50D0631661	Other	-	CLIA

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 current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2009-09-09. Verify at npiregistry.cms.hhs.gov.

Where is Dynacare Northwest Inc located?

The practice location on file with NPPES is in Seattle, WA.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-09-09.