North West Norfolk MP Henry Bellingham has said he is considering legal action over his inclusion in a dossier that makes claims of links between MPs and private health firms.
Trade union Unite said its investigations had uncovered that 70 coalition MPs, involved in reform of the NHS, had links to private healthcare interests.
Mr Bellingham said: “The reference to me is complete nonsense. I’m seriously considering issuing a writ.”
Unite had incorrectly stated that Lansdowne Advisory, a firm Mr Bellingham was involved with, had a shareholding in a private healthcare company.
Unite has now retracted that claim but stands by its accusation that Mr Bellingham has links to private healthcare via other interests.
In a statement issued to the Lynn News, the union said: “The private healthcare connections to MPs and the dossier released have exposed the scandalous conflicts of interest between parliamentarians and private healthcare.
“Henry Bellingham voted for the Health and Social Care Act, which has led to the sell-off of our NHS and landed companies linked to MPs with millions of pounds worth of contracts.”
Unite said a previous investigation revealed that since 2012, £1.5 billion has left the NHS and gone into the pockets of 15 private companies.
Len McCluskey, Unite general secretary, said: “The Government had no mandate to sell-off our NHS, the people of Norfolk did not vote for it, yet they are doing just that. You have to ask yourself why?”