Yi Jenny Zheng MD, PhD Gastroenterology and Hepatology,
Antioch CA 94509
Phone: 925-384-9276,
Staff@YiZhengMD.com
GERD, dysphagia, ulcer, dyspepsia, nausea, vomiting, indigestion, gas, bloating, Celiac disease, SIBO (Small bowel Bacterial Overgrowth), irritable bowel syndrome, IBD (inflammatory Bowel disease....