Thomas O. Marxen, D.D.S, M.S.D.D.D.S, M.S.D.Unclaimed · claim itProsthodonticsWoodinville, WA20+ 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.(425) 483-2442NPI 1639249899View Profile Claim