Exclusive: GPs say they have firm evidence now that the government is planning to privatise the National Health Service as part of its reforms.
In a document seen by Channel 4 News, plans are laid out for how services will be bought for patients.
And family doctors say the details show for the first time the scale of the involvement of private companies. The document, Developing Commissioning Support: Towards Services Excellence, is a draft sent out to various health organisations.
Under the NHS reforms, GP practices will form consortia and they will manage about 60 per cent of England's NHS budget. But it has been acknowledged that some GPs will not want to - or be capable of - managing such huge enterprises.