We spoke with a rep for the Orlando Regional Medical Center who tells us Shaq, Kaka and Damon all came on the same day -- and visited with several patients.
Tebow -- who had been on a family vacation -- came as soon as he got back.
A rep for Tebow tells us, "Timmy has a lot of relationships in Orlando. Family. Friends. He wants to do what he can."
Tebow was accompanied by Gov. Rick Scott -- who organized the celebrity appearances. We're told Scott felt the athletes would help boost morale ... and we're told he couldn't have been more right.
You can see in the video ... the recovering patients were excited to meet the sports stars -- and the sports stars were clearly touched and inspired by the patients.