Medina is starting Tuesday's game against the Orioles, Matt Breen of The Philadelphia Inquirer reports.
Medina made his season debut when he tossed two scoreless innings against the Cubs on Sept. 16, and he'll pitch on normal rest to begin Tuesday's bullpen game. The right-hander made 17 starts at Triple-A Lehigh Valley this year and posted a 5.05 ERA and 1.44 WHIP in 67.2 innings.