Very unresponsive doctor Anush Abrahamyan, do not answer any calls(even from the center ones) when the patient is already 30+mins waiting for her. So the only thing you can do is to make another appointment and leave(and you cannot be sure that the next appointment will take place). And this is not the first time of such behaviour. Even for the very first patient registered at 10:00 she can come to work at 10:35, and no excuses. Such unprofessional behaviour for a doctor.