Digestive Diseases | UT Health Athens, UT Health Athens has expanded gastroenterology services to accommodate more patients with less wait time than ever before. We welcome board-certified gastroenterologist, Jay Takata and Jennifer Mahmoud, PA, who will be caring for patients with digestive diseases. The expanded gastrointestinal (GI) lab at UT Health Athens is a key part of reducing wait time for our patients. Our GI lab is accredited by The Joint Commission and participates in the GI Quality Improvement Consortium.