Serving Richardton since 1983 Gregory J. Johnson DDS, FAGD Doctor of Integrative Medicine Dentistry Including Orthodontics "Dedicated to excellence in dentistry" Phone 974-2118 or 1-800-439-7439 200 3rd Avenue West Richardton, ND 58652 Serving Richardton since 1983 Gregory J. Johnson DDS, FAGD Doctor of Integrative Medicine Dentistry Including Orthodontics "Dedicated to excellence in dentistry" Phone 974-2118 or 1-800-439-7439 200 3rd Avenue West Richardton, ND 58652