Mayokun commenced his work at the National Health Co-op as a registered General Practitioner in 2013, following extensive work experience and training in Nigeria and South Africa. 

Prior to joining the National Health Co-op, Mayokun practiced as a General Practitioner / Family Physician in Nigeria.

Mayokun obtained his medical degree from the University of Ilorin in Nigeria. He obtained a Masters of Medicine from the University of Limpopo in South Africa. Mayokun is also a fellow of the Royal Australian College of General Practitioners.