Brenton Mar, MD, PHD
NPI 1215183256 · Pediatric Hematology & Oncology Physician · Boston, MA
Brenton Mar, MD, PHD is a Pediatric Hematology & Oncology Physician provider in Boston, MA (NPI 1215183256).
Provider details
- NPI number
- 1215183256
- Entity type
- Individual
- Primary specialty
- Pediatric Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 246128 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
- 2008-08-11
- Last updated
- 2009-06-24
Frequently asked questions
- What is Brenton Mar's NPI number?
- Brenton Mar's National Provider Identifier (NPI) is 1215183256, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brenton Mar's specialty?
- Brenton Mar is listed in the NPPES registry with a primary specialty of Pediatric Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Brenton Mar located?
- Brenton Mar's practice location on file with NPPES is 300 Longwood Ave, Boston, MA 02115-5724.
- What is Brenton Mar's phone number?
- The practice phone number listed in the NPPES registry for Brenton Mar is (312) 560-4488.
- Is Brenton Mar's NPI active?
- Yes — Brenton Mar's NPI (1215183256) is active in the NPPES registry as of the last update on 2009-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.