A&E units across the UK are paying almost £1,500 a shift to GPs for night and weekend working.
According to the Daily Mail, who obtained figures from 86 hospital trusts in the country under the Freedom of Information Act, four in 10 casualty departments are hiring family doctors.
The newspaper did not say if it had received figures from Gloucestershire Hospitals NHS Trust but all 130 trusts were approached.
36 hospital trusts said they employ GPs in roles including assessing patients when they arrive and treating the less seriously ill.
Rates varied from £50 to £100 an hour, while a recruitment firm was offering £1,440 for a 12-hour shift in London.
According to the newspaper, doctors are travelling from across the country to work the shifts because the pay is so good.