Back to Search Back to Search Alissa Larsen, FNP-C Specialty Family Medicine Education University of North Dakota Practice Location Professional Interests Professional Memberships Williston Walk-In Clinic Craven-Hagan Building, 1213 15th Ave W, Williston, ND 58801 M - F: 7:00 - 11:30 am, 1:00 - 5:30 pm Family practiceCaring for patients in all stages of life. AANP