Optum, incredible ideas in one incredible company and a singular opportunity to do your life's best work.(sm) colorado residents only: Gastroenterology associates of colorado springs (gacs) is here to help you with your gi symptoms or concerns. Gastroenterology Office Digestive Disease Clinic And Endoscopy Center - Colorado Springs - Co Abbass shafii is a gastroenterologist in colorado springs, colorado and is affiliated with multiple hospitals in the area, including memorial hospital and poudre valley hospital. Optum gastroenterology colorado springs . The office is conveniently located in the downtown area of colorado springs. We offer a wide range of services from primary care to specialty care in colorado springs. After the first four days, all my bloating had gone away plus i have had so much more energy. Search for other physicians & surgeons, gastroenterology (stomach & intestines) on the real yellow pages®. George's university school of medicine an...