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

Dr. Margaret Calloway, MD

Individual provider Infectious Disease Physician · NPI 1881677888

Dr. Margaret Calloway, MD is an Infectious Disease Physician in Bethesda, Maryland. Licensed in California. Registered with an NPI since 2005.

Licensed in
CA
In the registry since
2005
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

4301 Jones Bridge Rd Ofc OF The Dean
Bethesda, MD 20814-4712
Phone: (301) 295-1602
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence G79915 (CA)

Record details

NPI number1881677888
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 22, 2005
Last updated in NPPESJuly 13, 2026
Mailing address1745 Algonquin Rd, Frederick, MD 21701-9344

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