Reports suggest that Sainsbury’s is planning to allow 200 in-store GP practices to be created.
But Dr Cornel Fleming, FDA national executive, raised concerns that people popping in to see the GP as they went to the supermarket would scupper continuity of care.
He said: 'What happens to having your own GP, and your medical records? People need to stick to their own surgery, which knows them. This idea would undermine existing surgeries.'
Dr Michael Taylor, Family Doctor Association’s marketing lead, also warned that GPs will have to brush up on their marketing skills if they are to compete with these new surgeries.
He said: ‘These ripples of competition may sweep away those general practices that are not awake to the brave new world of competition.’
Earlier this year, the first in-store GP clinic set up in supermarket giant Sainsbury's closed after losing support from the PCT.