Gail B. Wangerin, PHD RN CSPHD RN CSUnclaimed · claim itClinical Nurse SpecialistLawrence, 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.(978) 682-8881NPI 1265554125View Profile Claim