Isabel B. Nieveras, RN, BSN, MSNRN, BSN, MSNUnclaimed · claim itRegistered nurse (RN)Barrigada, GU8+ years experienceRegistered with an NPI since 2018. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.(671) 632-9370NPI 1982191227View Profile Claim