[2] Following the strong opposition of the Australian Labor Party to the proposed changes to the remuneration of general practitioners, Owler publicly opposed the measures.
[4] Owler is involved in several clinical studies including those on the topic of normal pressure hydrocephalus and deep brain stimulation surgery for the treatment of cerebral palsy.
[7] Owler is a driving force and the face of the NSW 'Don't Rush' anti-speeding campaign,[8] and has appeared on billboards and in television ads warning of the risks and damage associated with road accidents.
This advocacy arose from discussions with the relevant state minister while Owler was president of the NSW branch of the Australian Medical Association.
[13][14] In 2017, Owler chaired a Ministerial Advisory Panel that provided advice on the Victorian Voluntary Assisted Dying Bill 2017.