Federowicz went 0-for-3 with a walk in his only appearance of the season Sunday.
Federowicz hit .294 with 11 home runs and 76 RBIs in his first full Triple-A season last year. That was enough to earn a promotion to the relatively low-pressure job of a backup major-league catcher. He held the edge on the job from the end of last season to the end of spring training, until the Dodgers traded Aaron Harang for veteran catcher Ramon Hernandez on Saturday.
Hernandez will back up starter A.J. Ellis.
Billingsley is scheduled to start tomorrow against Padres left-hander Eric Stults in San Diego.