Figures obtained exclusively by ITV Border have found that the North Cumbria Health Trust spent £8 million in the past year on temporary doctors.
The Freedom Of Information request also found that one locum consultant was being paid £158 an hour.
Local MP John Stevenson has branded the figures as 'astonishing', but the trust says that recent recruitment issues are now improving.
The MP for Carlisle believes the drawn out merger process with the Northumbria Trust has created the problems:
More top news
Artefacts uncovered from a Viking burial site in Cumwhitton have went on display in Carlisle's Tullie House thanks to a £50,000 grant
Members of the Lake District Ski Club, based on Raise Fell near Hellvelyn, have been taking the Alpine past time to Cumbria. See the pics:
30,000 tonnes of damaged household goods have had to be dumped in landfill following devastating winter floods, town hall chiefs have said.