Great Plains Benefits Group - Employer Advisers Share: Business Services Great Plains Benefits Group - Employer Advisers Visit Website 2021 E Main Ave. Bismarck, ND 58501 (701) 226-0941 Visit our Website to Learn More LinkedIn Facebook Hours: Monday - Friday: 8:00AM - 5:00PM About Map About We provide solutions to your business and employee issues. Our areas of expertise are business & employee management, human resources, business planning and process management. Directions Office on second floor. What's Nearby? Distance: 5 10 15 20 25 50 mi.