Experimental Medicine Division is a collection of research groups within the Nuffield Department of Clinical Medicine who are based at a number of sites including; the John Radcliffe Hospital, the Peter Medawar Building for Pathogen Research, the Churchill Hospital, including Old Road Campus (please see site map), the Nuffield Orthopaedic Hospital and the Weatherall Institute of Molecular Medicine (WIMM).

Research spans fundamental basic science to translational and experimental medicine approaches including clinical trials. Researchers seek to understand the pathophysiology of disease and apply this knowledge to develop enhanced diagnostics and treatments for human disease. Experimental Medicine's research includes immunology, behavioural science, infectious diseases, gastroenterology, palliative care and respiratory medicine. The research is undertaken within different groups and research units and includes clinical trials.

Experimental Medicine employs 200 active scientific research staff working in a range of basic science and clinical disciplines, with many contributing to the teaching of medical students within Oxford University's Clinical School. Many staff hold honorary contracts with the NHS, in addition to NHS employees holding University of Oxford honorary contracts. Research includes immunology, infectious diseases, gastroenterology, respiratory medicine, palliative care, and genetics of genomics.

The administration team oversees the Division's research grants, finances, HR, IT and Laboratory management and is based at the John Radcliffe Hospital on Level 5 with many of the Units having smaller teams of administration who are linked to the main administrative office. There are also a large number of postgraduate research students.