Pierre-Olivier Grenier, M.D.
NPI 1144881160 · Pediatric Dermatology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Pierre-Olivier Grenier, M.D. is a Pediatric Dermatology Physician provider in Boston, MA (NPI 1144881160).
Provider details
- NPI number
- 1144881160
- Entity type
- Individual
- Primary specialty
- Pediatric Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 293663 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
- 2019-06-21
- Last updated
- 2022-08-24
- Certified
- 2022-08-24
Frequently asked questions
- What is Pierre-Olivier Grenier's NPI number?
- Pierre-Olivier Grenier's National Provider Identifier (NPI) is 1144881160, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Pierre-Olivier Grenier's specialty?
- Pierre-Olivier Grenier is listed in the NPPES registry with a primary specialty of Pediatric Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Pierre-Olivier Grenier located?
- Pierre-Olivier Grenier's practice location on file with NPPES is 300 Longwood Avenue, Boston, MA 02115.
- What is Pierre-Olivier Grenier's phone number?
- The practice phone number listed in the NPPES registry for Pierre-Olivier Grenier is (617) 355-6117.
- Does Pierre-Olivier Grenier accept Medicare?
- Pierre-Olivier Grenier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Pierre-Olivier Grenier's NPI active?
- Yes — Pierre-Olivier Grenier's NPI (1144881160) is active in the NPPES registry as of the last update on 2022-08-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.