Raj Shankar Ghosh is a physician trained in public health. His work has been primarily on health systems, management of infectious diseases and in One Health recently. He has primarily been engaged in public health program policies, planning and implementation in his work life.

He is currently overseeing the work of the Centre for Environmental Health at PHFI. This includes work around research, evidence generation, advocacy, capacity building and providing technical assistance for sustainable climate resilient health systems.