David Hsieh, M.D., is an Assistant Professor in the Division of Hematology and Oncology at UT Southwestern Medical Center. He specializes in gastrointestinal cancers, with a focus on hepatocellular carcinoma. 

Dr. Hsieh earned his medical degree at the University of Arizona College of Medicine. He completed a residency in internal medicine at Mount Auburn Hospital in Cambridge, Massachusetts, and received advanced training in hematology and oncology through a fellowship at UT Southwestern. 

Certified by the American Board of Internal Medicine, Dr. Hsieh joined the UT Southwestern faculty in 2019.

Dr. Hsieh’s research interests include understanding the biology behind the variable effectiveness of cancer therapies between patients and developing new therapeutic and diagnostic strategies for gastrointestinal cancers. He is also interested in quantitative science research, with a focus on uncovering sources of bias in the production of scientific and medical knowledge.