Stewart A. Hinkley, D.D.S., M.S.D.D.S.,M.S.Unclaimed · claim itEndodonticsSpringfield, OH20+ 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.(937) 390-2005NPI 1215008008View Profile Claim