Chloe Atreya, MD, PhD

Dr. Chloe Atreya is a medical oncologist who cares for patients with gastrointestinal cancer and co-director of the UCSF Young-Onset Colorectal Cancer Program. She is dedicated to practicing personalized medicine, integrating factors such as biomarkers to tailor treatment to each individual. She is passionate about treating each patient as a whole person and working toward health equity.

In her research, Atreya focuses on how tumor biology, lifestyle factors and the gut microbiome affect outcomes for patients with colorectal cancer. Her work has received grants from the National Institutes of Health, the American Cancer Society and other foundations. She also co-directs research hubs for integrative oncology and cancer microbiome research at the UCSF Helen Diller Family Comprehensive Cancer Center.

Atreya earned her medical degree and a doctorate in pharmacology at Yale University. She completed her internship and residency in internal medicine at the University of Washington, followed by fellowships in medical oncology and integrative medicine at UCSF.

In addition to caring for patients, Atreya is an affiliated faculty member at the UCSF Osher Center for Integrative Health and an active member of the Society for Integrative Oncology and American Society of Clinical Oncology.