The U.S. Attorney’s office says Wahiawa General Hospital will pay about $450,000 to settle lawsuits alleging improper billing.

Federal and state governments alleged the hospital wrongfully submitted claims to Medicare, Medicaid and the military’s health care program known as TRICARE. An investigation began after a doctor alleged the hospital submitted bills for services provided by resident doctors without the level of supervision required by federal law.

The U.S. Attorney’s office notes that while the hospital agreed to the settlement signed Thursday, the hospital doesn’t admit liability. Hospital officials didn’t immediately return a call seeking comment today.

The doctor who initiated the lawsuits will receive nearly $85,000 of the settlement payment. District of Hawaii U.S. Attorney Florence Nakakuni praises the doctor for his courage in reporting the alleged wrongdoing.