Hi and welcome to the Chiari forum.
Yes any NS can do the surgery BUT it does not mean they should or you will have optimum results.
We have not had any members from the middle east share names of Drs there to start a list....so the only thing you can do is educate yourself and research Drs to find one that understands ALL related conditions....even one willing to chat with a specialist here in the states....that would be the best route to take.....sorry I don't have more info.