John J. Buyer, DDS, MPH, MS, MSSDDS, MPH, MS, MSSUnclaimed · claim itPeriodonticsChristiansburg, VA20+ 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.(540) 381-0475NPI 1821008442View Profile Claim