Dennis Rodman’s turned over a new leaf while shooting “All-Star Celebrity Apprentice,” we hear. “It’s been a wake-up call,” a source said of the newly sober wild man laying off the sauce. “He did a disservice to himself with booze and strip clubs, especially at his appearances.” Rodman’s previously said he was “unhirable” when he tried sobriety years ago. But it seems the Worm’s turned. “He’s a very different person when he’s sober,” said a friend. “He’s got a lot of integrity. He’s made a real effort. Everyone around him recognizes that.” Rodman was spotted recently at Hell’s Kitchen’s 123 Burger Shot Beer, but abstained when a friend bought $1,000 of shots and brews for the bar. “Dennis was just having fun but wasn’t drinking. He’s in town working and has been sober,” his rep said. Owner John Greco said Rodman “treated everyone like a superstar.” Rodman was seen shooting Donald Trump’s show yesterday on 23rd Street and Fifth Avenue.