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

Dr. Margaret Mary Brennan, MD

Individual provider Cardiovascular Disease Physician · NPI 1851489207

Dr. Margaret Mary Brennan, MD is a Cardiovascular Disease Physician in Baltimore, Maryland. Licensed in Maryland and Tennessee. Registered with an NPI since 2006.

Licensed in
MD, TN
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

6569 N Charles St Ste 600
Baltimore, MD 21204-6831
Phone: (443) 849-8989
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence D35595 (MD)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 15409 (TN)

Record details

NPI number1851489207
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 11, 2006
Last updated in NPPESSeptember 14, 2022
Certification dateSeptember 14, 2022

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