Mid-Columbia Medical Center has appointed Jayme Thompson-Mason as its new chief nursing officer. In her more than two decades with MCMC, Thompson-Mason has served as a staff nurse in the emergency department, a nursing house supervisor and most recently as the director of emergency services, emergency management and nursing resources. In her new role, Thompson-Mason will oversee quality and safety initiatives, patient care delivery models, strategic and operational planning for nursing services, as well as clinical education, and development for 205 nurses across the MCMC health system, which includes the hospital and outpatient clinics. Thompson-Mason is replacing Don Wenzler, who will be retiring from MCMC later this month.