Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Brenton Garrett Mar, MD, PHD

Individual provider Pediatrics Physician · NPI 1215183256

Dr. Brenton Garrett Mar, MD, PHD is a Pediatrics Physician in Boston, Massachusetts. Licensed in Massachusetts and New York. Registered with an NPI since 2008.

Licensed in
MA, NY
In the registry since
2008
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

300 Longwood Ave
Boston, MA 02115-5724
Phone: (312) 560-4488
Fax: (857) 233-4292
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Hematology & Oncology Physician (primary) Taxonomy 2080P0207X · Licence 238609 (MA)
Pediatrics Physician Taxonomy 208000000X · Licence 246128 (NY)

Record details

NPI number1215183256
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedAugust 11, 2008
Last updated in NPPESJune 24, 2009

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