 On 18 November 2011, Changi General Hospital left SingHealth and formed the Eastern Health Alliance along with St. Andrew's Community Hospital, SingHealth Polyclinics and The Salvation Army Peacehaven Nursing Home.On 20 January 2017, SingHealth announced that it would be merging with the Eastern Health Alliance, bringing Changi General Hospital back into the SingHealth cluster.SingHealth operates SingHealth Polyclinics, a network of primary care polyclinics largely situated in the southeast, east, and northeast Singapore.