top of page



Dr. Yi JennyZheng M.D., Ph.D.

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's expertise in Gastroenterology and Hepatology developed during her time at USC, where she trained with world-renowned faculty like Dr. Loren Laine, President of the AGA (American Gastroenterology Association), and Dr. Neil Kaplowitz, past president of AASLD (American Association for the Study of Liver Disease), and author of the Textbook of Gastroenterology.

After ten years at Kaiser Permanente, the opportunity to work with a wide variety of patients from all backgrounds is what inspired Dr. Zheng to open her own practice.
As a firm believer in prevention, the focus of Dr. Zheng's practice is colon cancer/polyp screening, Barrett's esophagus, esophageal cancer screening and stomach cancer screening, as well as screening and prevention of fatty liver and cirrhosis.   
Understanding that chronic digestive disease can severely impact a patient's ability to enjoy life, Dr. Zheng also makes forming close relationships with her patients a priority. 

Dr. Zheng collaborates closely with referring primary care providers as well as colleagues from other specialties like endocrinologists, surgeons, oncologists and radiologists to support patients with complex conditions. 

Experience, Education & Training

Prior Medical Practice Experience 2009-2019

Specialist, Gastroenterology and Hepatology,

Kaiser Permenate Medical Group

Clinical Training


Fellowship, Gastroenterology and Hepatology, University of Southern California, 2009

Residency, Internal Medicine, UCSD, 2006

Medical  Research


Post-doctoral Researcher, UCLA School of Medicine

Medical Education 1988-1998

M.D., Ph.D. (Moledular Biology)

Tongji Medical University, China

Our Team


Daniel Zhu, B.S.

Office Manager, With us since 5/2020


Daniel studies business administration, data science, and economics at the University of California Berkeley’s Haas School of Business. He is an experienced social entrepreneur who has done work with his own nonprofit organizations and is passionate about social impact consulting. Most recently, Daniel's consulting work has focused on consumer-facing pharmaceutical companies in the Bay Area healthcare ecosystem.  Daniel also holds his position @ BCG Consultant firm in San Francisco.

Daniel is fluent in Chinese (Mandarin)


Mariah Brown B.S.

Medical Assistant/Intern, Joined us in 1/2022


Mariah is a recent college graduate.

Mariah is applying for medical school.


Juliet Beach B.S.

Medical Assistant/Intern, Joined us in 1/2023


Juliet is a recent graduate from the University of California-Davis, where he earned a degree in Human Biology. Juliet is interested in medical field and planning to apply for medical school


Andrew Zheng

Office Assistant, With us since 5/2020


Andrew likes to learn new things. He started his high school speech and debate team and he is also writing for school newspaper.

Andrew likes hiking, cross country, skiing and tennis.

Andrew is fluent in Chinese (Mandarin)

Graduated Interns


Felicia Tang B.S.

Medical Assistant/Intern

Medical School Summer 2022



Priscilla Reyes B.S., M.S.

Medical Assistant/Intern

Medical School Summer 2022

vivian vo (2).PNG

Vivian Vo B.S.

Medical Assistant/Intern

Medical School Summer 2021

Our Research Team


Olivia Owens B.S.


Olivia is a recent college graduate from Saint Mary’s College, where she studied Biology. Olivia is driven and committed to lifelong learning. She is interested in advancing patient care through research with plans to apply to medical school.


christmas card 2022 3 front.JPG

Merry & Bright Wishes from Dr Zheng and her team


Congratulations to Felicia starting Medical School Summer 2022

Left to right: Felicia, Mariah, Sabrina and Yi (Jenny) Zheng





Congratulations to Vivian starting Medical School Summer 2021

Left to right: Felicia, Kimberly, Wilma, Vivian, Sabrina and Yi (Jenny) Zheng

Questions? Please Contact Dr. Zheng for a Consultation

bottom of page