Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ann-Marie Grenier

Dental Hygienist in S Portland, ME · enumerated 2016.

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

National Provider Identifier

1659723252

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Registry record

Entity type Individual (Type 1)

Name Ann-Marie Grenier

Sex Female

Practice address 254 Western Ave, S Portland, ME, 04106

Phone (207) 774-5527

Enumeration date Jul 7, 2016

Last updated in NPPES Jul 7, 2016

Taxonomy & licenses

124Q00000X Dental Hygienist Dental Providers · License 65 (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 Ann-Marie Grenier?

The National Provider Identifier (NPI) for Ann-Marie Grenier is 1659723252, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ann-Marie Grenier practice?

The practice location on file with NPPES is in S Portland, 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 2016-07-07.