Arnab K Ghosh, MD, MSc, MA is Assistant Professor of Medicine at Weill Cornell Medical College of Cornell University, where his research program focuses on climate change and health, and development of interventions to protect vulnerable populations against climate-amplified threats. 

 He served as a Climate and Health Scholar at the National Institutes of Health from 2023-2024, hosted by the National Institute on Aging. He is a fellow of the Atkinson Center for Sustainability and Center of Health Equity at Cornell University, a fellow at the CUNY Institute for Demographic Research, serves as an Emergency Management Fellow at Health + Hospitals, the largest county hospital system in the US, a Climate and Health Technical Advisor for Federal Government’s ASPR TRACIE program, and a Medical Officer as part of the Disaster Medical Assistant Teams within the US Government’s National Disaster Medical System. He also chairs the national subcommittee of health policy and research at the Society of General Internal Medicine.

He received his undergraduate medical degree and graduate degree in development studies at the University of Melbourne, Australia, and graduate degrees in health policy and economics, and clinical/translational sciences at Cornell University. He undertook his training in emergency medicine at the Royal Melbourne Hospital in Melbourne, Australia, and Internal Medicine at NYU/Bellevue Hospital.

Prior to his career in academia, Dr. Ghosh worked as a McKinsey consultant, a HIV/AIDS policy analyst at the United Nations Secretariat, and practiced medicine in remote, resource-limited settings as an emergency physician.