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

Marianne Poirier

Occupational Therapy Assistant in Waterville, ME · enumerated 2009.

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

National Provider Identifier

1225367204

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Registry record

Entity type Individual (Type 1)

Name Marianne Poirier

Sex Female

Practice address Waterville, ME, 04901

Phone (207) 872-1000

Enumeration date Dec 21, 2009

Last updated in NPPES Dec 21, 2009

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

Taxonomy & licenses

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License OA1879 (ME) 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

What is the NPI number for Marianne Poirier?

The National Provider Identifier (NPI) for Marianne Poirier is 1225367204, a Type 1 (individual) record in the CMS NPPES registry.

Where does Marianne Poirier practice?

The practice location on file with NPPES is in Waterville, ME. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-12-21.