Maine became the 23rd state to enact a DPC defining "not insurance" law on 06/01/17.  A final copy of the law can be viewed here and this legislative summary page is a helpful reference as well.  Multiple DPC practices are operating within Maine's borders.  Be sure to review the Maine Revised Statutes Title 24-A: Maine Insurance Code when planning your DPC practice. The Maine Academy of Family Physicians has supported DPC with live review courses and has helpful information on its website as well. In addition Maine's NPR station completed a comprehensive 50+ minute story on May 21, 2015 involving multiple DPC practices in Maine.  It would be wise to review this guide from the Maine Medical Association as well.