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

Individual provider Medical Physician Assistant · NPI 1174546147

Trudy M Koster, PA is a Medical Physician Assistant in Billings, Montana. Licensed in Montana. Registered with an NPI since 2006.

Licensed in
MT
In the registry since
2006
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

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Practice location Address checks out

123 S 27th St
Billings, MT 59101-4200
Phone: (406) 247-3200
Fax: (406) 247-3200
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Physician Assistant (primary) Taxonomy 363AM0700X · Licence FNP326 (MT)

Record details

NPI number1174546147
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA
Sole proprietorNo
NPI enumeratedJuly 25, 2006
Last updated in NPPESFebruary 15, 2012

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