No, PAs cannot practice independently. Every PA must be supervised by a licensed physician (either M.D. or D.O.). The supervising physician is responsible for all medical services provided by a PA under his/her supervision and for following each patient's progress.
http://www.pac.ca.gov/supervising_physicians/faqs.shtml#3Nakon pristupanja RH Europskoj uniji novodiplomirani doktori medicine za vrijeme
specijalizacije moraju imati mentora koji odgovara za njegov rad. Liječnik koji radi na
zamjeni ugovornog liječnika za vrijeme njegove specijalizacije može raditi samo uz
nadzor mentora.
http://www.google.hr/url?sa=t&rct=j&q=&esrc=s&source=web&cd=...