Doctor makes billionaire rich list by selling burritos

Dr Sam Prince is using his successful food franchise to eliminate crusted scabies in the NT

An Australian doctor who founded a group of GP practices has become a billionaire at 38.  

Dr Sam Prince.

But he has done it not by finding gold in the black hills of Medicare but by selling burritos.  

Dr Sam Prince founded Zambrero – the global Mexican fast food chain – back in 2005, a year before graduating from medicine at Monash University.