Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

William J Carriveau

Q: What is the NPI number for William J Carriveau?

The NPI for William J Carriveau is 1154404531, a Type 2 (organization) record in the CMS NPPES registry.

Physical Therapist in Seattle, WA · enumerated 2006 · authorized official William Carriveau, Physical Therapist/Owner.

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

National Provider Identifier

1154404531

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Registry record

Entity type Organization (Type 2)

Legal business name William J Carriveau

Other name <Unavail>

Practice address 10564 5th Ave Ne, Suite 302, Seattle, WA, 98125

Phone (206) 367-6477

Fax (206) 367-7748

Enumeration date Oct 22, 2006

Last updated in NPPES Jun 17, 2008

Taxonomy & classification

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Primary

Authorized official

Name William Carriveau

Title Physical Therapist/Owner

Phone (206) 367-6744

Other identifiers

Identifier	Type	State	Issuer
0068095	Other	WA	LABOR & INDUSTRIES
7038490	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

Who is the authorized official for William J Carriveau?

NPPES lists William Carriveau (Physical Therapist/Owner) as the authorized official for this organization.

What is the NPI number for William J Carriveau?

The NPI for William J Carriveau is 1154404531, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-17.