Piazza hits solo shot off Nomo
Piazza, who hit his first 177 homers with the Dodgers, had gone 16 consecutive games without one since homering twice on April 7 at Atlanta.
"I think it's just a tribute to being consistent and being healthy, working hard and taking care of myself," Piazza said before the game.
Piazza, 35, broke in with the Dodgers in 1992 and was named NL rookie of the year the following season. The 10-time All-Star just recently began playing some games at first base.
He has 362 career home runs.
Johnny Bench (327), Yogi Berra (306) and Lance Parrish (299) are next on the catchers' list.