Dental Associates, Inc. Share: Dentistry Dental Associates, Inc. 204 3rd Ave NW Mandan, ND 58554-0907 (701) 663-7545 (701) 663-6174 (fax) Rep Info Map Whom to Contact Jeff Duckwitz Nicole Duckwitz Thomas Lengowski A. G. Malaktaris What's Nearby? Distance: 5 10 15 20 25 50 mi.