In his speech to the BMA's annual conference on Monday, Dr Mark Porter said the changes had cut investment, fragmented care and prioritised the tendering of services to private companies.
Mr Miliband also committed to new controls to stop private firms "cherry picking" the most straightforward cases and to stop the forced tendering of services, making clear the NHS must be the preferred provider for the majority of services.
Multinational company involvement in public health care systems has been evolving since the late 1980s/1990s, with the introduction of compulsory competitive tendering for services such as catering, cleaning and facilities management services.
Real NGOs often fail to hear of tenders for service-provision contracts they could fulfil.
But sometimes this was more problematic, as with one commissioning organisation's response to the national mandate to tender a specific list of services to open competition, which proved troublesome as this organisation was happy with their services in these areas.
Halliburton won a 10-year contract in a competitive tender to provide a range of services to the military, from managing latrines, to laundry services and feeding troops.
"To stop the threat of services being tendered out and being run by Virgin [the multinational conglomerate] and Boots [a UK pharmacy chain], local GPs have got together to form a federation.
23 September 2009 Request for proposal No : RFP-UKRA-2009-0014 Tender on providing services: Production of the music video and PSAs on CRC@20 and Eurovision Please note that your offer duly sealed must reach UNICEF office by 11 00 hours on 5 October 2009 and the offers will be opened at 11 15 hours same day as indicated in the attached Request for proposal format.
A spokesman for the Australian Department of Immigration and Border Protection said: "On 30 January 2015 the Department of Immigration and Border Protection issued an open tender (RFT 28/14) for the provision of services in regional processing countries.
Repealing the act may not be an option in the short term, but if the coalition government would take a real pause and listen, it would surely appreciate that for one, the continuing obsession of tendering services to any provider is fragmenting the NHS.
This year, a further £750m of services will be tendered.
