HNB National Bank » Chamber Members Go back to directory. Add to Address Book. HNB National Bank HNB National Bank Contact: Buzz Shaver PO Box 86 Monroe City MO 63456 work Phone: 573-735-2265work Fax: 573-735-2672workfax Email: *protected email*INTERNET Connections Business Directory | Leaflet | © OpenStreetMap contributors PO Box 86 Monroe City MO 63456Get Directions