Per Ronald Tillery of the Commercial Appeal, Bickerstaff was fined $25,000 for making inappropriate comments toward a referee and failing to leave the court in a timely manner after being ejected.
Referee Marc Davis gave Bickerstaff two technical fouls in the span of two minutes during the fourth quarter of Memphis' 92-88 loss.
Speaking to reporters after the game, Bickerstaff noted he was telling Grizzlies guard Andrew Harrison to "go play" and ignore calls Davis was making.
"That's a technical foul, apparently," Bickerstaff said.
After receiving his second technical foul with 7:41 remaining in the fourth quarter, Bickerstaff began shouting at Davis after walking onto the court.
The 38-year-old Bickerstaff was named interim head coach for the Grizzlies in November after David Fizdale was fired. He has posted an 11-24 record in 35 games with the team.