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Your Health Starts in Your GUT

About Dr. Zheng

Dr. Zheng (Yi Jenny Zheng, M.D., Ph.D.) specializes in gastroenterology and hepatology.  Dr. Zheng is absolutely committed to delivering the highest quality of care to ensure the health of her patients.  Dr. Zheng's office offers a comprehensive range of services, including treatment for digestive issues and illnesses related to the esophagus, stomach, liver, pancreas, small bowel and colon, as well as non surgical weight loss procedures.

As a diplomate of the American Board of Internal Medicine as well as the American Board of Gastroenterology, Dr. Zheng is double board certified in Gastroenterology & Hepatology, as well as Internal Medicine. Dr. Zheng has undergone extensive training at the University of Southern California, UCLA and UCSD, and she shows an exceptional commitment to excellence in treating diseases and disorders affecting the digestive tract, such as:

• Acid and non acid reflux, bile reflux

• Barrett’s esophagus

• Swallowing issues

• Gastritis, gastropathy, ulcer

• Gastroparesis

• Digestive issues post bariatric surgery

• Celiac Disease

• Lactose intolerance

• SIBO (Small bowel bacterial overgrowth)

• Gas, bloating

• Polyps, colon cancer screening, flat lesions (flat polyps)

• Diverticulosis and diverticulitis

• IBD, including Ulcerative Colitis and Crohn’s Disease
• Irritable Bowel Syndrome (IBS)


• Gallbladder issues

• Pancreatitis and other pancreatic issues

• Hepatitis, abnormal liver function

Fatty Liver, NAFLD, NASH
• Cirrhosis, ascites

• Anemia

• GI bleeding

• abnormal weight loss

• Obesity, abnormal weight gain

The procedures performed by Dr. Zheng include:

• Colon Cancer Screening

• Colonoscopy and Sigmoidoscopy

• Non surgical polyp resection

• Non surgical flat lesion resection

• Non surgical Hemorrhoid Bandaging

• Upper Endoscopy or EGD
• Non surgical Esophageal Dilatation

• Capsule Endoscopy

• Liver FibroScan

• Non surgical Bariatirc Procedures:
Removable Gastric Balloon (NOT PERMANENT)

Endoscopic sleeve gastroplasty (ESG)

​If you are experiencing symptoms such as acid reflux, difficulty swallowing, abdominal bloating or pain, nausea, vomiting, ulcer, diarrhea, constipation, bleeding, hemorrhoids, abnormal liver function, fatty liver, cirrhosis or other problems affecting your digestive system, please contact Dr. Zheng's office today by calling 925-384-9276 for more information or to book your appointment.


Currently Dr. Zheng works at her Walnut Creek office, convenient for gastroenterological patients from East Bay cities like Lafayette, Moraga, Orinda, Concord, Pleasant Hill, Martinez, Benicia, Alamo, Danville, Blackhawk, San Ramon, Dublin, and Pleasanton. 

Antioch office is convenient for patients from

Brentwood, Oakley, Clayton, Pittsburg neighborhood.


Dr. Zheng also offers to see patients online - especially for her patients from regions like 

Oakland, Benicia, American Caynon, Fairfield, Napa, etc, online or phone visits can be a more convenient alternative to in-person visits. 


Dr. Zheng is in the process of setting up offices in other neighborhoods.

Dr. Zheng does procedures @ surgical centers in Concord, Walnut Creek and Danville.

walnut creek liver health


Nonsurgical Weight loss

Liver Health

Cancer Prevention

Dr. Zheng explains medical procedures to ensure your good health.

Dr. Zheng has special experience in non surgical weight loss procedures

Help you understand the most common liver disease and silent killer

A superior doctor prevents sickness... Dr. Zheng's recipe for long healthy life

COVID-19 Precautions

Our office is making every effort to protect our members and staff during the COVID crisis. We are requiring all visitors to wear face masks and use hand sanitizers as they enter the office. 

Please complete COVID questionnaire prior to your visit.

Questions? Please Contact Dr. Zheng for a Consultation

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