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

Janet K Armstrong, MD

Individual provider Internal Medicine Physician · NPI 1215949557

Janet K Armstrong, MD is an Internal Medicine Physician in Glasgow, Montana. Licensed in Montana. Registered with an NPI since 2006.

Licensed in
MT
In the registry since
2006
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

221 5th Ave S
Glasgow, MT 59230-2600
Phone: (406) 228-3400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 6460 (MT)

Record details

NPI number1215949557
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 13, 2006
Last updated in NPPESMarch 26, 2008
Mailing address221 5th Ave S, Glasgow, MT 59230-2600

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