A dozen doctors and four individuals from Michigan and Ohio have received federal prison sentences and were slapped with hefty fines as part of a wide-ranging scheme that distributed 6.6 million pills and submitted $250 million in false billings, officials announced Thursday. The 16 defendants, according to a U.S. Department Of Justice press release, were part of a scheme that involved pain clinics spanning multiple states. Seven other people connected to the operation still await sentencing. Among the highest-profile defendants is Dr. Frank (Francisco) Patino, 67, of Woodhaven, who was convic…