William H. Messerschmidt, M.D.M.D.Unclaimed · claim itThoracic Surgery (Cardiothoracic)Bristol, TN47 years experienceCalculated from a graduation year of 1979, reported in the CMS National Downloadable File.(423) 439-7201NPI 1134115777View Profile Claim
Marcus G. Williams, MDMDUnclaimed · claim itThoracic Surgery (Cardiothoracic)Bristol, TN21+ years experienceRegistered with an NPI since 2005. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.(423) 230-6900NPI 1730177155View Profile Claim