San Antonio Gastroenterology Endoscopy Centers are outpatient, endoscopic facilities specializing in the prevention, diagnosis and treatment of gastrointestinal diseases and disorders. Our team of 15 gastroenterologists serves the San Antonio area with three convenient locations. Patients are frequently seen for colorectal cancer screening and problems involving the digestive tract.Whether youre a future patient, referring physician or simply looking for more GI information, we have all the information to meet your needs. Explore our site to get a feel for the facility, procedures we offer and our physicians — plus the latest news and information on colon cancer screening and digestive healthcare. At SAGEC we are pleased with our exceptional results far exceeding the national benchmark on quality for screening colonoscopy