Theresa S. Kay, PHD CLINICAL PSYCHOLPHD CLINICAL PSYCHOLUnclaimed · claim itPsychologistRiverdale, UT19+ 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.(801) 475-0402NPI 1053466169View Profile Claim