Former Pfizer executive Christy Lopé will lead Hill Holliday Quest, and it will focus on DTC marketing in the health and wellness space. Less than a year after  Interpublic Group (IPG) sold Hill Holliday  and Deutsch New York to global marketing services company Attivo Group, Hill Holliday is launching an entirely new healthcare practice. Former Pfizer executive  Christy Lopé  will head the new unit, called Hill Holiday Quest. The new practice is separate from Hill Holliday Health, which was  consolidated into Rise & Run  along with McCann Health New Jersey in May. Lopé will bring her nearly 20 years of experience leading health and wellness brands at Pfizer to the managing director role. With her at the helm, Quest will tackle the challenges of the healthcare industry through the perspective of the client. “Personally, health has always been my guiding light,” Lopé said.…