Some 16,000 patients will lose their GP practice over the holiday period, as five practices are set to close across England.
Four practices, with a combined patient list of 10,700, are due to close in Lincolnshire on 16 December.
The Burton Road, Pottergate, Arboretum and Metheringham surgeries had been managed on a temporary basis by Lincolnshire Community Health Services NHS Trust since previous provider Universal Health Limited went into liquidation this summer.
Universal Health said the practices became financially unviable due to recruitment problems, which had left them increasingly dependent on locum doctors, with NHS England running an unsuccessful tender for the APMS contract.
Full story in Pulse, 29 November 2016