Mary Jo Slaathaug, M.S., SLP-CCCM.S., SLP-CCCUnclaimed · claim itSpeech-language pathologyMayville, ND12+ years experienceRegistered with an NPI since 2014. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.(701) 788-2116NPI 1235557943View Profile Claim