ARE YOU LOOKING FOR GASTROINTESTINAL SURGERY SURGEON IN KALYANI NAGAR, KOREGAON PARK, VIMAN NAGAR, KHARADI, HADAPSAR, PCMC, PUNE ? Dr Gowri Singh is the Best for Gastrointestinal Surgery in Kalyani Nagar, Koregaon Park, Viman Nagar, Kharadi, Hadapsar and Entire Pune. Gastrointestinal Surgery | Gastroenterology-Gastrointestinal surgery is a treatment for diseases of the parts of the body involved in digestion. This includes the esophagus (ee-sof-uh-gus), stomach, small intestine, large intestine, and rectum. It also includes the liver, gallbladder, and pancreas.