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

Diana I Doll, MD

Individual provider Family Medicine Physician · NPI 1942263405

Diana I Doll, MD is a Family Medicine Physician in Billings, Montana. Licensed in Illinois and Montana. Registered with an NPI since 2006.

Licensed in
IL, MT
In the registry since
2006
Specialties on file
3
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

801 N 29th St
Billings, MT 59101-0905
Phone: (406) 238-2501
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 28206 (MT)
Family Medicine Physician Taxonomy 207Q00000X · Licence 036085495 (IL)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 036-085495 (IL)

Record details

NPI number1942263405
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 7, 2006
Last updated in NPPESJanuary 20, 2017

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