Barbara B. Chase, APRN, BC, ANPAPRN, BC, ANPUnclaimed · claim itNurse Practitioner — Primary CareChelsea, MA19+ years experienceRegistered with an NPI since 2007. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.(617) 887-4600NPI 1972642395View Profile Claim