Dr. Jonathan Kung, MD Gastroenterologist Advanced Endoscopist Internal Medicine Fitness/Soccer/Gratitude Twitter  |  Instagram Description: Dr. Kung is a practicing gastroenterologist and advanced endoscopist in New York and California. Son of a gastroenterologist, he went to UC Davis for university, St. Georges University for medical school and trained at SUNY Downstate, UCLA Harbor, and UCSF. Most…