Jahlil Okafor insists he NEVER tried to use a fake I.D. at a Philly bar back in October ... claiming reports to the contrary are completely bogus.
We spoke with Okafor's rep who tells us bluntly ... "He doesn't have a fake I.D. It never happened."
There's more ... Okafor's rep also says the NBA star did NOT request a private security detail to accompany him when he goes out to nightclubs and bars.
However, the rep says Jahlil's team HAS discussed plans to have security with him at team events. The rep says nothing is official at this point.
We also asked if Okafor would be seeking anger management or any other kind of treatment in the wake of the street fight in Boston ... and we were told there are no immediate plans for that either.
"We have no immediate plans for that at the moment, but he has a huge family and they have been rallying around him."'
The rep adds, "There are no plans for him to go out any time soon."