Rafael C. Guzman Fonalledas, M.D.M.D.Unclaimed · claim itEmergency MedicineToa Baja, PR20+ 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.(787) 565-4431NPI 1912940610View Profile Claim