Dr Chapman graduated with a PhD from the University of Sydney before completing his post-doctoral training at the University of Vermont, USA. He is a researcher at the Woolcock Institute of Medical Research, clinician-researcher at Royal North Shore Hospital, the Northern Clinical School, University of Sydney and academic at the School of Medical Science, University of Technology Sydney.
Dr Chapman has a research interest in the interaction between lung disease and comorbidities such as obesity, upper airway dysfunction, sleep disorders and cardiovascular disease. His expertise includes complex measures of small airway function and how these measures can improve the clinical management of people with lung diseases such as asthma, Chronic Obstructive Pulmonary Disease and Interstitial Lung Disease. He maintains active participation in the activities of the Thoracic Society of Australia and New Zealand and the American Thoracic Society.