"I'm just happy to be able to put the uniform on again and be with the team you broke camp with," said Kotchman, who sustained his injury on April 3 while sprinting to first base. "I'm excited to be back here."
Kotchman made six rehab-assignment starts at Class A Jupiter, and he was 6-for-23 (.261) at the plate.
The Marlins have been hit heavily by injuries at first base. Until Kotchman was brought back, they had three first basemen on the disabled list -- Kotchman, Logan Morrison (right knee) and Joe Mahoney (right hamstring).
The plan is to give Kotchman playing time and to use Greg Dobbs off the bench.
Dobbs, respected as a pinch-hit specialist throughout his career, made 42 starts at first base while Kotchman was out.
Manager Mike Redmond noted that Kotchman is a veteran who knows his limitations.
"I think he's fine," Redmond said. "I think he's probably as close to 100 percent as he can be. He's been around a long time. He knows when to turn it on, and when not to. He can kind of protect himself over there if he is not 100 percent.
"That gives Dobber a little bit of a break. Dobber has had to really grind it out over there at first. He's done a great job. He's played a great first base and given us some great at-bats. He will still go over there and play as well. But I like him coming off the bench."
Joe Frisaro is a reporter for MLB.com. He writes a blog, called The Fish Pond. Follow him on Twitter