Dr. Tolaney received her undergraduate degree from Princeton University in 1998 and her medical degree from UC San Francisco in 2002. She subsequently completed her residency in Internal Medicine at Johns Hopkins University, and fellowships in hematology and medical oncology at Dana-Farber Cancer Institute. She obtained a Masters in Public Health from the Harvard School of Public Health in 2007.
In 2008, she joined the staff of Dana-Farber Cancer Institute and Brigham and Women's Hospital, where she is a medical oncologist and clinical investigator in the Breast Oncology Center. Her research focuses on the development of novel therapies in the treatment of breast cancer.