Constance J. Hallquist by Edward Cates December 19, 2019 December 19, 2019 706 Constance J. HallquistFormer President & Chief Executive OfficerDNA Diagnostics Center (DDC)Serves on Board of Directors for: Medifast, Inc. 0 FacebookTwitterPinterestEmail Edward Cates previous post Jean M. Halloran next post Jamie Handwerker