Published: Sep 27, 2013 5:12 PM EDT

MIAMI (AP) - Two more people have been charged in a $190 million South Florida Medicare fraud case that has already resulted in numerous convictions and some lengthy prison sentences.
    
Federal prosecutors said Friday that 28-year-old Mayelin Santoyo and 36-year-old Jose Martin Olivares are each charged with one count of conspiracy and two counts of receiving health kickbacks. Each of the charges carries a potential five-year prison sentence.
    
Investigators say the pair acted as patient brokers for now-defunct American Therapeutic Corp. and a related entity that operated seven mental health clinics in Florida. Santoyo and Olivares were allegedly paid kickbacks for providing patients ineligible for Medicare that ATC could then use to submit fraudulent claims.
    
Court records didn't list attorneys for the two Friday.
    
ATC's former president is serving a 50-year prison sentence.

(Copyright 2013 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)