Dr Bentley completed his Bachelor of Medicine/Bachelor of Surgery at James Cook University in 2012. He worked as a locum before becoming an ophthalmology registrar. He later pursued general practice training as a registrar through the GP Synergy RACGP general pathway. He is also the approved Vice President of the Australasian Integrative Medicine Association. He has been prescribing medicinal cannabis as an authorised prescriber since 2021.