Douglas A. Hockenberger, PTA, ORTHOTIST, PROSPTA, ORTHOTIST, PROSUnclaimed · claim itOrthotistTraverse City, MI18+ 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.(231) 935-0901NPI 1285804815View Profile Claim