Margaret Kosnar, MD
NPI 1669645669 · Family Medicine Physician · Billings, MT
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Kosnar, MD is a Family Medicine Physician provider in Billings, MT (NPI 1669645669).
Provider details
- NPI number
- 1669645669
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 11813 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
- 2008-04-10
- Last updated
- 2014-12-04
Frequently asked questions
- What is Margaret Kosnar's NPI number?
- Margaret Kosnar's National Provider Identifier (NPI) is 1669645669, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Kosnar's specialty?
- Margaret Kosnar is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Kosnar located?
- Margaret Kosnar's practice location on file with NPPES is 2675 Central Ave, Billings, MT 59102-6686.
- What is Margaret Kosnar's phone number?
- The practice phone number listed in the NPPES registry for Margaret Kosnar is (406) 238-2500.
- Does Margaret Kosnar accept Medicare?
- Margaret Kosnar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Kosnar's NPI active?
- Yes — Margaret Kosnar's NPI (1669645669) is active in the NPPES registry as of the last update on 2014-12-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.