Mark Grenier, DMD
NPI 1275926834 · Dentist · Dartmouth, MA
Enrolled with Medicare as Order and Referring Only - Oral Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Grenier, DMD is a Dentist provider in Dartmouth, MA (NPI 1275926834).
Provider details
- NPI number
- 1275926834
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Credential
- DMD
- Sex
- Male
- Sole proprietor
- No
- License
- 14933 (MA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-03-06
- Last updated
- 2015-03-06
Frequently asked questions
- What is Mark Grenier's NPI number?
- Mark Grenier's National Provider Identifier (NPI) is 1275926834, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Grenier's specialty?
- Mark Grenier is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is Mark Grenier located?
- Mark Grenier's practice location on file with NPPES is 78 Faunce Corner Rd, Dartmouth, MA 02747.
- What is Mark Grenier's phone number?
- The practice phone number listed in the NPPES registry for Mark Grenier is (508) 992-4243.
- Does Mark Grenier accept Medicare?
- Mark Grenier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Grenier's NPI active?
- Yes — Mark Grenier's NPI (1275926834) is active in the NPPES registry as of the last update on 2015-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.