Robert M. Humphries, D.D.S., M.S.D.D.S., M.S.Unclaimed · claim itProsthodonticsPortage, MI20+ 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.(269) 329-0888NPI 1912069204View Profile Claim