The Gastrointestinal and Liver Disease Specialty Research Network is a multi-disciplinary group of clinician-investigators that evaluates clinically important questions to inform new treatments and new approaches for care in diseases of the pancreas, liver, biliary (gallbladder) system, stomach, small bowel, and colon. These include inflammatory, infectious, malignant, and immune-related disorders. The group’s investigations are supported by several sources including The Permanente Medical Group, the National Institutes of Health, the National Cancer Institute, the Patient-Centered Outcomes Research Institute, and private non-profit foundations.
Learning Video - Improving adenoma detection rates
Physicians Involved in Research

Theodore Levin, MD
Network Lead,
Walnut Creek Medical Center

Dan Li, MD
Network Lead,
Santa Clara Homestead

Sripriya Balasubramanian, MD
Roseville Medical Center

Douglas A. Corley, MD, PhD
Division of Research and San Francisco Medical Center

Erina Foster, MD
Vacaville Medical Center

Jeffrey Fox, MD
San Rafael Medical Center

Courtney Gonzales, MD
Antioch Medical Center

Benjamin Hassid, MD
Oakland Medical Center

Sundip Karsan, MD
San Jose Medical Center

Jeffrey K. Lee, MD, MPH
Division of Research and San Francisco Medical Center

Theodore Levin, MD
Walnut Creek Medical Center

Dan Li, MD
Santa Clara Homestead

Mitchell Liverant, MD
Oakland Medical Center

Brock MacDonald, MD
San Rafael Medical Center

Catherine Rongey, MD
Vallejo Medical Center

Abhik Roy, MD
San Leandro Medical Center

Varun Saxena, MD
South San Francisco Medical Center

Lyle Shlager, MD
San Francisco Medical Center

Mandeep Singh, MD
Modesto Medical Offices
Studies
Publications
Newsletter
Recent Achievements
A big congratulations to Theodore Levin, MD, for receiving the 2018 Sidney Garfield Exceptional Contribution Award, for colorectal screenings. His accomplishments in improving colorectal cancer screening have led to a 25% decrease in the incidence of colorectal cancer and a 50% decrease in mortality, respectively within Kaiser Permanente Northern California.
To learn more about Dr. Levin’s work please follow this link to his award announcement.