Trudy Koster, PA
NPI 1174546147 · Medical Physician Assistant · Billings, MT
Trudy Koster, PA is a Medical Physician Assistant provider in Billings, MT (NPI 1174546147).
Provider details
- NPI number
- 1174546147
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- FNP326 (MT)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-25
- Last updated
- 2012-02-15
Frequently asked questions
- What is Trudy Koster's NPI number?
- Trudy Koster's National Provider Identifier (NPI) is 1174546147, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Trudy Koster's specialty?
- Trudy Koster is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Trudy Koster located?
- Trudy Koster's practice location on file with NPPES is 123 S 27th St, Billings, MT 59101-4200.
- What is Trudy Koster's phone number?
- The practice phone number listed in the NPPES registry for Trudy Koster is (406) 247-3200.
- Is Trudy Koster's NPI active?
- Yes — Trudy Koster's NPI (1174546147) is active in the NPPES registry as of the last update on 2012-02-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.