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Dr. Mark Steven Grenier, DMD

Dentist in Dartmouth, MA · enumerated 2015 · practices at Mark S Grenier Dmd PC.

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

National Provider Identifier

1275926834

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark Steven Grenier
Credential DMD
Sex Male
Practice address 78 Faunce Corner Rd, Dartmouth, MA, 02747
Phone (508) 992-4243
Fax (508) 992-4250
Enumeration date Mar 6, 2015
Last updated in NPPES Mar 6, 2015

Taxonomy & licenses

122300000X Dentist Dental Providers · License 14933 (MA) Primary
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

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 Mark Grenier?
The National Provider Identifier (NPI) for Mark Grenier is 1275926834, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Grenier practice?
The practice location on file with NPPES is in Dartmouth, MA. 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 2015-03-06.