Labour leader Ed Miliband has accused David Cameron of reorganising the NHS from the "top-down."
Speaking in Manchester, Mr Miliband accused Mr Cameron of taking on new powers to close down health services and shutting a quarter of NHS walk-in centres.
Read more: Miliband promises to boost GP surgeries
He also said Cameron promised there would be "no more top-down reorganisations. He spent billions of pounds on a top-down reorganisation that nobody wanted and nobody voted for"
"Competition, fragmentation, and privatisation - that's how the Tories see the future of our NHS and that's why it is going backwards," he said.
"David Cameron has broken his bond of trust with the British people on the NHS. He has proved the oldest truth in British politics: you can't trust the Tories with the NHS."
The Royal College of General Practitioners (RCGP) welcomed the announcement by Ed Miliband, but warned that it must form part of a wider shift in funding towards family doctors.
RCGP chair Dr Maureen Baker warned that "general practice is now teetering on the brink of collapse" and was "disintegrating before our very eyes."
– RCGP chair Dr Maureen Baker
There is a growing crisis in waiting times to see a GP across the country, and it is clear that this will become a key issue at the next election.
GPs want to provide better access for their patients, but are being prevented from cutting waiting times because of the funding black hole in general practice.
Ed Miliband's announcement that more money should be channeled into general practice is therefore extremely welcome.
More: Miliband promises to boost GP surgeries
Ed Miliband has pledged that a future Labour government would give GP surgeries an extra £100m funding and make sure all patients can see a doctor within 48 hours.
Speaking in Manchester, Mr Miliband said it was a "scandal" that only 40% of NHS patients are seeing a GP within 48 hours, while one in four cannot get an appointment the same week they ask for one.
The Labour leader said the extra money would come from getting rid of the market-based NHS framework set up by the current government, along with cutting spending on consultants and senior managers.