Carol J. Hoffarth, A.R.N.P.A.R.N.P.Unclaimed · claim itNurse Practitioner — PediatricsMason City, IA18+ years experienceRegistered with an NPI since 2008. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.(641) 424-0030NPI 1770739328View Profile Claim