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

Dr. Mary Irene Macgregor, MD

Individual provider Geriatric Medicine (Internal Medicine) Physician · NPI 1629296439

Dr. Mary Irene Macgregor, MD is a Geriatric Medicine (Internal Medicine) Physician in Baltimore, Maryland. Licensed in Maryland. Registered with an NPI since 2007.

Licensed in
MD
In the registry since
2007
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

700 W 40th St
Baltimore, MD 21211-2104
Phone: (410) 662-4390
Fax: (410) 235-7425
Show map & directions

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

Specialties & licences

Geriatric Medicine (Internal Medicine) Physician (primary) Taxonomy 207RG0300X · Licence D0013657 (MD)

Record details

NPI number1629296439
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 24, 2007
Last updated in NPPESNovember 12, 2007

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