Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Marianne Flanagan Gray, MD

Individual provider Internal Medicine Physician · NPI 1770718322

Dr. Marianne Flanagan Gray, MD is an Internal Medicine Physician in Cambridge, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2009.

Licensed in
MA
In the registry since
2009
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

330 Mount Auburn St Dept OF Internal Medicine
Cambridge, MA 02138-5502
Phone: (617) 492-3500
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 237326 (MA)

Record details

NPI number1770718322
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 27, 2009
Last updated in NPPESMay 27, 2009

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