Midlothian, VA. Our Midlothian office is located in the Millworks development near the intersection of N Woolridge Road and Coalfield Rd. See doctors at this location. Current member assistance: 804.420.1200. Individual and corporate sales: 804.420.1250. 13901 Coalfield Commons Place, Millworks Building 5, Suite 201, Midlothian, VA 23114..