Mayday University Hospital in Surrey, which is run by Mayday Healthcare NHS Trust, has begun fining people who contravene its parking regulations after abandoning a clamping scheme, which it said blocked access.
The new scheme, which became fully operative in mid-July, fines drivers £25 for each offence.
Figures from the trust show that between 14 July and 24 July, the contractor responsible for administering the scheme issued 117 fixed penalty notices, totalling £2,925.
This means the hospital is set to raise more than £100,000 in revenue from the fines each year.
Unions said that nurses and consultants had also been fined because their permits were on the wrong vehicles or had not been renewed.
Michael Walker, Unison’s London regional officer, said: ‘There is a lot of anger. It puts staff under a lot of pressure who are stressed already.
‘They are using the DVLA to check out registrations, which is a violation of civil liberties. Why do they need to do that?’
Stephen Wells, director of estates and facilities at Mayday Healthcare NHS Trust, defended the scheme.
‘Providing adequate parking for all who want it is a major concern for us,’ he said.
‘To make it work we have to employ a set of rules which can be understood by all. These rules have to be enforced uniformly, otherwise the system is unfair.’