Rosemary A. Ferguson, RN, MSN, CNSRN, MSN, CNSUnclaimed · claim itClinical Nurse SpecialistStaunton, VA19+ 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.(540) 886-0824NPI 1942406046View Profile Claim