Oxfordshire University Hospitals NHS Foundation Trust made more than £3 million from car parking charges in the year 2014/15.
Of all the NHS Trusts to respond to a Freedom of Information request, the trust - who manages the Horton General Hospital in Banbury - made £3.72 million, just behind University Hospital Southampton NHS Foundation Trust, who made £3.87 million.
For patients using the Horton, they are charged £1.40 for an hour and £2.80 for two. It costs £7 for a day or £10 for seven day consecutive days.
The trust also manages Oxford’s John Radcliffe Hospital, the Churchill Hospital and the Nuffield Orthopaedic Centre.
Mark Neal, interim head of estates at Oxford University Hospitals, said: “Oxford University Hospitals is one of the biggest hospital trusts in the country, running four hospitals on different sites with 1600 patient car parking spaces and over a million contacts with our patients every year.
“Our car parking charges are lower than many other hospitals and in keeping with car parking charges locally.
“We have not increased our hourly rate of parking for two years and before that we hadn’t increased it for ten years. When we last increased our parking charges two years ago we lowered our daily rate for parking at our hospitals from £10 to £7 and introduced free parking between 8pm and 8am.
“We have to charge for car parking both to cover the costs of maintaining our car parks (otherwise we would have to use money that would be spent on patient care) and in an area of high demand for car parking in order to deter people from using our car parks for other purposes. We offer a range of concessions for people on low incomes, people whose conditions require them to attend our hospitals regularly (for instance those receiving chemotherapy) and the families of our patients who are critically ill.”