Montana does have a few DPC practices, and fortunately has made repeat efforts at passing well drafted legislation in the 2017 session.  Unfortunately 2017's SB 100 was vetoed by the Governor.  A prior (poor) effort at DPC legislation was vetoed by the governor on April 27, 2015 and covered in detail in our blog.  If you have aspirations of opening a DPC practice in Montana, be sure to begin by reviewing the Montana Code Title 33 Insurance and Insurance Companies, note that Montana prohibits any in-office dispensing.  

Excellent guidance has been provided by insurance commissioner Matthew Rosendale on 12/04/2017 referencing our definition of DPC and stating that DPC physicians are not in the business of insurance.