The health regulator, The Care Quality Commission, said the next round of inspections will focus on GP out-of-hours services.
The commission said these are "likely to put patents at a higher risk of receiving poor care than from other general practice services."
The health regulator has uncovered a catalogue of failings at some GP practices with medicines stored in a way that puts children and patients at risk of infection and rooms so dirty they had maggots.
More top news
Auditions for X Factor have been cancelled following the death Simon Cowell's mother.
Andy Murray faces the towering 6ft 10 ins Croat Ivo Karlovic as he looks to book his place in the Wimbledon quarter final.
The National Housing Federation (NHF) has warned that large parts of the countryside in England could become "pensioner pockets".