Cefni HospitalCefni Hospital is a health facility in Llangefni, Anglesey, Wales. It is managed by the Betsi Cadwaladr University Health Board.HistoryThe original hospital on the site was built in the early 20th century. The site was redeveloped to create a substantially enlarged facility, intended to facilitate the closure of the aging Druid Isolation Hospital, in 1993. The enlarged facility became a facility for older people with memory difficulties in 2009.