Walter D. Fitzhugh, M.D., MPHM.D., M.P.H.Unclaimed · claim itAddiction Medicine (Neurology/Ps…Lincoln, RI20+ 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.(401) 334-1830NPI 1518973148View Profile Claim