Dr Antonius Steven completed his undergraduate training at the University of Melbourne and basic physician training at Royal Perth Hospital. He completed his advanced training in respiratory and sleep medicine at both John Hunter Hospital, NSW and Sir Charles Gairdner Hospital, WA. Dr Steven has also completed research fellowship in lung cancer immunology and immunotherapy at the UWA School of Medicine and Pharmacology, Harry Perkins Institute of Medical Research.

He is currently based in the South West and is doing clinical work with GenesisCare - Sleep and Respiratory in the area of general respiratory medicine and sleep disorders.

Dr Steven's special interests are sleep breathing disorders, general respiratory medicine (including severe asthma and interstitial lung disease), and lung cancer.