Don Nelson, D.D.S., M.S.D.D.D.S. , M.S.D.Unclaimed · claim itPediatric DentistryPoplar, MT20+ years experienceRegistered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.(406) 768-3491NPI 1285734020View Profile Claim