Up to two students will have the exclusive opportunity to shadow Dr. Antonio Serna, a internist and gastroenterologist, as he sees patients and performs screening procedures such as endoscopies.  Dr. Serna will also share his background, training and guidance on pursuing a career in medicine.

San Antonio Gastroenterology Associates, P.A. (SAGA) provides state-of-the-art medical care to patients through the comprehensive evaluation, diagnosis and treatment of gastrointestinal disorders and liver disease. Our twelve board certified physicians serve the San Antonio community at seven clinic and three endoscopy center locations.

Our doctors are experts in all aspects of their specialties including colon cancer screening procedures, treatment of GERD, inflammatory bowel disease, irritable bowel syndrome, ulcer disease and treatment of diseases of the liver, biliary system, and pancreas.