Baron Davis -- I'm a Testicle Doctor Now!!

Have your testes been kicked into your stomach? Need to get 'em out?

Well, then call Baron Davis -- the ultimate ball rebounder!

As we previously reported, the ex-NBA star is pursuing a career in Hollywood -- and recently scored himself a role as a genital doctor in the upcoming flick "Joe Dirt 2: Beautiful Loser."

Ya gotta check out the clip ... it's pretty hilarious ... and Davis does a helluva job extracting Joe's bean bags from his guts with a trusty pair of salad bar tongs.