San Diego ? Mike Piazza has a new home on the West Coast, where he began his career with the Los Angeles Dodgers in 1992.

At a news conference Monday to introduce him as a member of the San Diego Padres, the All-Star catcher also received a new number. The Padres retired Hall of Famer Dave Winfield’s No. 31, which Piazza had worn since breaking into the major leagues.

So when he slipped on his white Padres jersey for the first time, it came adorned with fresh digits: No. 33.

“I’ve always had 3s in my number, (but) this is something new for me,” Piazza said. “I don’t have crazy superstitions about my number.”

The number might be different, but Piazza will be at a familiar position this season, his 15th in the majors. The Padres last week signed the 37-year-old slugger to a $2 million, one-year contract to be their starting catcher and have said he can catch as many games as he’s able to. The deal includes a mutual option for 2007 at $8 million, with a $750,000 buyout.

Piazza chose the Padres’ offer in part because of the promise of a broad role. His second choice, the Philadelphia Phillies, wanted him to be a part-time catcher and first baseman.

“We just thought this was the best opportunity to contribute,” said Piazza, joined at the news conference by his agent, Dan Lozano, and his wife, Alicia. “I’ve never been in a situation as a true backup, and at this point in my life I thought (San Diego) was probably a natural fit.

“I’m not very mechanical about these decisions,” Piazza said. “I just think it was meant to be.”

Piazza, a 12-time All-Star whose 374 home runs as a catcher are the most in baseball history, also will be the Padres’ designated hitter in interleague games and fill in at first base against certain left-handed pitchers.