At least 13 doctors and therapists who have been banned from practising in the Netherlands and Britain, are continuing to work, RTL news said at the weekend.
Nine of the doctors and therapists were struck off in the Netherlands and four in Britain, RTL news said. Some of them are working in the Netherlands as alternative therapists and psychologists.
One runs a clinic in Rotterdam where he treats cancer patients, the broadcaster said. Another doctor is working as a family practitioner in Germany and one is a plastic surgeon in Belgium.
The doctors were banned from practising for sexual abuse, prescribing the wrong medicine, making mistaken diagnoses and carrying out breast enlargement surgery which went wrong.
One doctor had treated patients while drunk and another had injected patients with cell-based treatements which had only been tested on animals.
A spokesman for the health ministry told RTL efforts are under way to ensure the doctors struck off in Britain are also banned from working in the Netherlands.