The whistleblower at the centre of corruption allegations against a West Australian hospital says she will give evidence to a public inquiry, despite doubts about her own credibility.

Ashton Foley, whose damning allegations to a parliamentary committee about the privately-run Peel Health Campus sparked a government inquiry, was forced to admit she was imprisoned in the US for about six weeks in 2008 on fraud and identity theft charges.

Records in the US show Ms Foley, under the alias Michelle Marie Foley, is still wanted in the US on a warrant issued in the state of Georgia in 2011 over charges of theft and identity fraud.

Police in WA were also called in to investigate claims she falsified information on her application for a job at Peel where she was the CEO. She even had allegations of a potential past bigamy case levelled at her.

She is also facing legal proceedings in the WA Supreme Court after being sued by her former employers, Health Solutions WA (HSWA). That case is listed to be heard on February 28.

After originally claiming she was on her way to America to sort out the outstanding warrant there, Ms Foley has now told Fairfax Digital she remains in hiding in Australia.

But she does intend to give evidence to the inquiry in WA via video link.

"My goal was not to cause a political situation or cost jobs. I just wanted to ensure people who go to the hospital are looked after and employees are treated properly," she told Fairfax.

Ms Foley says she is considering suing The West Australian newspaper, which broke the story of her fraudulent past in the US.

She has been dumped by her high profile Perth lawyer John Hammond, who has refused to say why, citing client confidentiality.