Kalipso Chalkidou (born in 1976) is the Head of Health Finance at The Global Fund to Fight AIDS, Tuberculosis and Malaria and a visiting professor at Imperial College London.

[5] On her return to the United Kingdom Chalkidou helped to set up National Institute for Health and Care Excellence (NICE) International.

[6] Here she established the International Decision Support Initiative (IDSI), a network of policy makers, researchers and development experts which was largely funded by the Bill & Melinda Gates Foundation.

[7] In 2018 Bill & Melinda Gates Foundation awarded Chalkidou and IDSI a $14.5 million grant to expand healthcare access in the developing world.

[8] IDSI works with governments in the developing world to support their health policy, looking to achieve value-for-money in the medical decision making.