Dr Coker qualified from the college of Medicine University of Ibadan, Nigeria and completed his
internship at University College Hospital, Ibadan. He had his specialist surgical training in the United
Kingdom with basic surgical training in Greater Manchester and higher surgical training in South
Yorkshire based around the Sheffield University Teaching Hospitals.

He was appointed Senior Lecturer in Surgery at Northern General Hospital and University of Sheffield in January 1999. In November 1999 he joined Doncaster and Bassetlaw NHS Trust as Consultant General Surgeon with specialist interest in Coloproctology and laparoscopic surgery. The same year he became surgical instructor to Tropical Health and Education Trust (THET – UK based charity) with annual visits to Northern Ghana for basic and emergency surgical skills courses. He remains Chairman of the International Development Committee of Association of Surgeons of Great Britain and Ireland organising surgical skills courses in East and West Africa.

In collaboration with Ethicon Johnson and Johnson, he established advanced colorectal workshops at major teaching hospitals in Nigeria that has been running since September 2007. He was appointed to the THET board of trustees in 2006. He was the Royal College of Surgeons Tutor for his trust until 2007 when he became the Programme Director for Core Surgical Training in Yorkshire and Humberside Postgraduate Deanery, United Kingdom.

Dr Coker is the Coordinator of the West African College of Surgeons in the United Kingdom and received an award at the Golden Jubilee Conference of the West African College of Surgeons for organising a surgical outreach programme in Calabar, Cross River State, Nigeria. During a five day period 200 operations were performed free of charge with 12 UK specialists.

In January 2011, Dr Coker was appointed Chief of Surgery at Lagoon Hospitals, Lagos to lead the surgical strategy including laparoscopic and colorectal surgery. He is the head of Clinical Governance at Lagoon Hospitals and worked in close collaboration with the Quality Improvement unit to achieve