Rena K. Fox, MD

University of California, San Francisco

Titles and Affiliations:

  • Professor of Medicine at UCSF

Dr. Fox has been on the faculty in the Division of General Internal Medicine at UCSF since 2001. As a clinician, Dr. Fox sees primary care internal medicine patients and maintains a busy practice. As a researcher, she focuses on chronic liver disease, especially hepatitis C virus and metabolic dysfunction associated steatotic liver disease (MASLD), formerly known as nonalcoholic fatty liver disease (NAFLD).  In MASLD her research centers on improving the accuracy of disease detection in the primary care setting and appropriate risk stratification protocols for identifying patients who have advanced fibrosis. In hepatitis C her research focuses on strategies for improving diagnosis and treatment of patients with hepatitis C.  At UCSF, she created the UCSF Hepatitis C Cure Initiative which began in 2024. She is the Chair of Liver Cancer Task Force for SF CAN (the San Francisco Cancer Campaign), coordinating multiple community and academic partners towards reducing the incidence and mortality from liver cancer. She is internationally recognized as an educator and given lectures across the U.S. and teaches UCSF medical students and internal medicine residents. She worked with the U.S. Department of Veterans Affairs (VA) for a decade on hepatitis C educational tools, national policies, and as the medical editor of the VA Viral Hepatitis website. She served as the Chair of CTAF from 2020-2023; before joining the CTAF Panel, she twice served as a clinical expert for the ICER at the two meetings on the direct acting antiviral treatments for hepatitis C which first became available in 2014. Dr. Fox received her undergraduate degree at Stanford University, earned her MD at the University of California, San Diego (UCSD), and did her internal medicine residency at the University of Washington, and was a fellow in general medicine at UCSF, where she received her training from UCSF hepatology faculty in viral hepatitis.