DETROIT (AP) - Federal prosecutors have filed fresh money laundering charges against a Detroit-area cancer doctor accused of intentionally misdiagnosing patients and ordering unnecessary treatments. Dr. Farid Fata was arrested Aug. 6, 2013. A judge ordered him held because of concern he might flee to his native Lebanon. He's scheduled for arraignment on the new charges Feb. 4 before U.S. District Judge Paul Borman. Fata is a naturalized U.S. citizen who lives in Oakland County's Oakland Township. He's accused of committing fraud to enrich himself through health insurance programs. The government says his practice billed Medicare $225 million from August 2007 to July 2013. Prosecutors say some patients were repeatedly exposed to powerful drugs despite having no cancer. Fata denies it. His trial is scheduled Aug. 12. Fata owned Michigan Hematology Oncology, which has an office in Lapeer.