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

Mathew Westmark

Individual provider Family Medicine Physician · NPI 1790002244

Mathew Westmark is a Family Medicine Physician in Billings, Montana. Licensed in Montana. Registered with an NPI since 2010.

Licensed in
MT
In the registry since
2010

Practice location Address checks out

123 S 27th Street Riverstone Heatlh
Billings, MT 59101 Not confirmed with CMS for 12 years — call before visiting
Phone: (406) 247-3306
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 28887 (MT)

Record details

NPI number1790002244
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 23, 2010
Last updated in NPPESMarch 18, 2014

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