Orlando Pascual Jr., the owner and operator of Medcore Group LLC and M&P Group of South Florida, pleaded guilty January 7 to defrauding the Medicare program in connection with a $5.3 million HIV infusion fraud scheme, South Florida Business Journal reports.

According to the article, Pascual admitted that between August 2004 and November 2006 he plotted with others to submit about $5.3 million in fraudulent claims to Medicare. The clinics claimed to specialize in HIV treatment. However, Pascual acknowledged that clinic employees intentionally manipulated patient’s blood samples so they would appear to need treatment, but they didn’t.

While Pascual is already serving jail time for another Medicare fraud involving durable medical equipment, he will be sentenced in April. Seven other co-defendants are scheduled to go to trial next month.