Hello everyone! Could you please recommend a competent gynecologist an…

Hello everyone! Could you please recommend a competent gynecologist and ultrasound technician? I need to show my mom (an elderly woman) as she has pain in her lower abdomen. I want to exclude gynecology and appendicitis, but I don't know who to turn to for appendicitis, who can determine it and how, what tests to take, feel or something like that? I would be very grateful for recommendations and advice ??????