The $40 million program looks for ways to reduce spending and streamline health care.
NDP Leader Cam Broten tells radio station CJME the Saskatchewan Party government is ignoring its own statistics.
The opposition released the survey Wednesday after the party filed a Freedom of Information request.
The survey showed 71 per cent of employees and 64 per cent of doctors felt the Lean project is not effective in transforming the health care system to significantly improve the quality of care in the province.
Health Minister Dustin Duncan says he’s concerned by many of the responses in the survey and will be following up on them personally.
“The way this government has gone about trying to pursue the change is a big part of the problem,” said Broten. “This is something that's widespread because it's important to realize how all the jobs are interconnected.”
The survey showed that 82 per cent of workers feel management did not act on their employee feedback, while 72 per cent of doctors felt management didn’t consult with them before making decisions.
“Certainly that would be among my greatest concerns because of the tone that senior leadership and management set for the health care system," said Duncan. "I think that obviously that number shows that we need to do a better job of that."