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	Dr. Jack Chang-Chien Feng is a California state licensed medical doctor, specializing in Gastroenterology. Graduated Magna Cum Laude from Ohio State University College of Medicine, completed residency training in UCI Medical Center, and completed the Gastroenterology specialist training at UCLA Health.  Dr. Feng's clinical interests include colon cancer screening, gastroesophageal reflux disorder (GERD), gastrointestinal bleeding, inflammatory bowel disease, evaluation of abdominal pain, and biliary/pancreatic diseases. Dr. Feng currently is working at Providence Health, located in 27799 Medical Center Rd. #310 Mission Viejo CA 92691    Dr. Feng's clinic interests include colon cancer screening, gastroesophageal reflux disorder (GERD), gastrointestinal bleeding, inflammatory bowel disease, evaluation of abdominal pain, and biliary/pancreatic diseases. Please call +1-949-364-5090 to contact.   Access cdoc101.com on a desktop computer to view more details.

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