Linas V. Mastis, M.D.M.D.Unclaimed · claim itCritical Care MedicineSaint Clair Shores, MI13+ years experienceRegistered with an NPI since 2013. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.(586) 612-1964NPI 1548502503View Profile Claim