It happened about 11:20 on Monday night, at Wayne and Manheim streets.
The victim was shot in the buttocks and stomach near that intersection, then groped his way to a Route 53 SEPTA bus, and climbed aboard.
Medics and police quickly arrived and took the victim to Temple University Hospital.
There's no word on his condition.
Police are hoping to find out from the man if he knows his attacker.
You can get the latest crime statistics from the Philadelphia Police by CLICKING HERE for the force's crime data mapping site.