Hill hit a 3-pointer to put Indiana up 51-48, George dunked, then hit a free throw after a technical on Byron Mullens for kicking the ball after he fouled Stephenson. Stephenson hit both free throws to give the Pacers a 56-48 lead. Indiana led 58-50 at halftime.
But the Pacers, who shot 13 for 21 in the second quarter, went cold in the third. Indiana was just 6 of 27 from the floor in the third, giving Philadelphia a chance.
"It was a tough game. We just didn't have a whole lot of pop," Indiana's David West said. "They came out in the third quarter with more energy."
Young pulled the Sixers to 62-61 on a 3-pointer, then put them ahead 63-62 on a fadeaway jumper. West hit a free throw to tie the game, but a lane violation wiped out his second attempt.
Mahinmi broke the tie with two free throws with 3:39 to play in the third.
Indiana's lead was 67-65 when George and Hill hit consecutive 3-pointers to extend the lead to eight. Young scored to make it 73-67, but West put back a miss by Hill to take a 75-67 lead into the fourth quarter.
The Sixers closed to 88-85, but Carter-Williams missed a potential tying 3-pointer with 2:15 remaining. Hill answered on the other end with a 3-pointer to give Indiana a 91-85 lead with 1:56 to play.
Hill then stole Carter-Williams' pass and Roy Hibbert completed a three-point play at the other end for a 94-85 advantage.
"We were there," Brown said. "I think it's a great example and learning lesson for Michael Carter-Williams, leaving the corner, George Hill hits a 3, it's a 3-point game."
NOTES: Pacers C Andrew Bynum (knee) sat out the game and is day-to-day. Pacers coach Frank Vogel said Bynum had an MRI on Monday. "We'll know more in the next couple of days," Vogel said before the game. Bynum has played in just two games since the Pacers signed him on Feb. 1. ... The Pacers were also without backup PG C.J. Watson (hamstring). ... James Anderson (thigh) did not travel with the Sixers after suffering a thigh bruise in Saturday's loss to Memphis. He had been the only Sixer to appear in every game this season.