Dr Marion Drennan is a fellow of the Royal Australian and New Zealand College of Psychiatrists (RANZCP), with a background in general practice and family planning. She has worked in urban and rural South Australia, and in Alice Springs and Darwin. She moved to Queensland in 2006 to work with the West Moreton Integrated Mental Health Service.

Dr Drennan has a long-standing interest in working in Aboriginal communities, initially as a General Practitioner in South Australia and more recently (since July 2007) as the visiting psychiatrist for the Cherbourg Community in Queensland.

As a senior lecturer for the University of Queensland she has enjoyed many years of medical student teaching. In 2008 she was the recipient of the Metropolitan Award for Excellence in Clinical Teaching of medical students at the University of Queensland (across all medical disciplines).

Dr Drennan sees patients aged 18 years and over for a wide range of psychiatric disorders.  Her focus is on assessment and treatment and she does not see patients for the sole purpose of providing medico-legal reports.