Montana does have a few DPC practices, and fortunately is making efforts at passing well drafted legislation in the current 2017 session.  SB 100 can be followed here.  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.