A senior NHS cancer specialist was branded a trouble-making whistleblower and effectively sacked after alleging bad practices at a London hospital, he will claim.

Ramon Niekrash, 50, a consultant urologist at the Queen Elizabeth Hospital, will also allege widespread bullying in the surgical directorate when the hospital tried to cut costs. 

He will claim at an employment tribunal in Croydon that he was victimised by managers who ignored his warnings that nursing staff cuts and closure of the specialist urology ward had endangered patients.

The hospital reopened in 2002 after a £93m rebuilding scheme funded by a private finance initiative, and declared itself technically insolvent in 2006. This year it merged with two other hospitals to form the South London Healthcare Trust.

A spokesman said: “Mr Niekrash makes a number of claims against the Queen Elizabeth Hospital … the trust denies all the claims and will contest them robustly.”