Published: Oct 15, 2010 3:28 PM EDT
Updated: Oct 15, 2010 12:28 PM EDT

MIAMI (AP) - A former minor-league baseball player has been sentenced to nearly 20 years in prison for a multimillion-dollar Medicare fraud scheme.

A Miami federal judge imposed the sentence Thursday on 38-year-old Ihosvany Marquez. Prosecutors say Marquez stole more than $21 million using seven clinics to submit false claims for HIV therapy.

Marquez was a Miami high school pitching star who played in the minors for the Boston Red Sox and Baltimore Orioles organizations.

Prosecutors say he used his fraud scheme to buy a

5,000-square-foot house, several luxury cars and thoroughbred racehorses worth $1 million.

Marquez's ex-partner and five others were arrested last year in a $100 million Medicare fraud scam.