The Tories claim the health minister misled both the public and MPPs when it comes to Chris Mazza and Ornge.
Progressive Conservative MPP Frank Klees says Deb Matthews didn't give all the information about the former Ornge CEOs salary to a government committee looking into the air ambulance service's finances.
Which is why Klees is calling Matthews to testify on the matter next Wednesday.
Matthew maintains she has released all information and documents on the issue.
She has come under fire recently for not attempting for find out the salary total, not looking at a final audit into the matter. It's reported that Mazza was paid $9.3 million by the end of his time at Ornge. She says the preliminary report was good enough, passing on the final copy to OPP investigators.
The committee looking the Ornge scandal wants that final auditor's report. The OPP are still investigating.