Dr. Varon is a cancer epidemiologist and a director at MD Anderson Cancer Center where she leads a team in the implementation of global oncology programs. In this capacity she collaborates with counterparts in international agencies and Ministries of Health to prioritize cancer initiatives for cancer control and capacity building globally. She also serves as the co-leader of the Project ECHO® (Extension for Community Healthcare Outcomes) Superhub for Oncology at MD Anderson.

Dr. Varon has authored a number of publications evaluating the implementation of comprehensive approaches to address access barriers to cervical cancer prevention and follow up. She has been an unpaid consultant for the World Health Organization, the Pan American Health Organization and the International Atomic Energy Agency to support global activities for cancer prevention, cancer control and planning.