Glen "Big Baby" Davis was just found guilty of swindling the NBA out of a ton of cash through the league's healthcare plan ... after authorities claim he accepted reimbursement for medical treatments he never received.
The U.S. Attorney's Office in the Southern District of New York announced the update in the case on Wednesday ... saying a jury determined the former Boston Celtics champion -- as well as fellow ex-NBAer Will Bynum -- were involved in a criminal scheme to defraud the NBA's Players' Health and Benefit Welfare Plan.
As we previously reported, a number of NBA alums -- including Darius Miles, Shannon Brown, Tony Allen, Jamario Moon, Tony Wroten, Melvin Ely and Ruben Patterson -- were accused of lining their pockets through the scheme by filing bogus claims for reimbursement with the league's healthcare plan.
Prosecutors previously claimed Terrence Williams, a 2009 NBA Draft first-round pick, was the mastermind behind it all.
U.S. Attorney Damian Williams released a statement ... saying, "While many of the more than 20 defendants convicted in this case were well-known NBA stars, their conduct was otherwise a typical fraudulent scheme designed to defraud the NBA’s health care plan and net the defendants over $5 million in illicit profits."
Worth noting -- Davis reportedly made more than $33.1 million over the course of his career.
"Today’s conviction exemplifies that despite notoriety or success in sports or any other field," Williams added, "no one is exempt from criminal charges if they engage in fraud."