Yes I think I know now what you mean , and I agree with Jrknothead since it´s the same in Spain at least.
If you get the doctorate you are officially a medical doctor whether you practice or not, ´cos it´s an academic achievement.
I´m actually a Pharmacist but I´m not practicing at the moment, I´m on a career break. So i guess it´s the same for doctors elsewhere.
However i must admit it can be tricky question because in my country and others, for instance someone who finish their studies whether its pharmacy, medicine, law....they are called: Licenciado (in spanish) which could be translated literally as "licensed".
Now that was why i was confused at first..lost in translation, lol, but taking into account the english sense of "license"...I then realised exactly what it meant and so I agree with Jrknothead.