Annie M. Gerhardt, APRN-BC, PMHNP-BCAPRN-BC, PMHNP-BCUnclaimed · claim itPsychiatric Nurse PractitionerDevils Lake, ND23 years experienceCalculated from a graduation year of 2003, reported in the CMS National Downloadable File.(701) 662-2157NPI 1811932387View Profile Claim