first, you need medical for your wife to any accredited clinic of Qatar Embassy, my wife medical was done in St. Rita in Dian, Makati, for your kids,11 years old n below-no need.then after that go to Qatar Embassy in Mckinley Hill with the Visa, Passport, Medical & 2 X 2 ID w/ white background.They should be there before 8AM.Mon-Friday.It will take 4 working days for visa stamping.