Noah, 35, will join the Clippers on a 10-day contract next week, but there's optimism that he would finish the season with the team barring any setbacks, league sources said.
Noah will fill the franchise's final open roster spot.
The Clippers have been monitoring Noah's physical progress throughout the season. The two-time All-Star gives them an aggressive, physical, playoff-tested player should a need arise for him in the postseason.
Noah has spent the year working out between New York and Los Angeles. He played 42 games with Memphis last season, after agreeing to a buyout with the New York Knicks. He's played only 124 NBA games since the end of the 2014-2015 season in Chicago.
Noah made the Eastern Conference All-Star teams in 2013 and 2014 with the Bulls. He was on the All-NBA first team and was the league's Defensive Player of the Year in 2014.