Dr Gerald Coakley graduated from the Royal London Hospital Medical School in 1989. After training in Nottinghamshire and London, he was awarded an Arthritis Research Campaign Fellowship, allowing him to carry out research in immunology and immunogenetics relating to Rheumatoid Arthritis and Felty's syndrome at Guy's Hospital, part of King's College School of Medicine. This led to his PhD in 2000.
He worked as a Consultant at Queen Elizabeth Hospital, Woolwich, from 2000 to 2023, when he left his NHS practice. He was Director of Medical Education from 2003 to 2013, and Clinical Director for Dermatology, Neurology and Rheumatology at Lewisham & Greenwich from 2013 to 2018. He was Chair of the Education & Training Committee at the British Society for Rheumatology from 2019-2022.
Since 2001, he has been involved in the private sector care of people with Myalgic Encephalomyelitis / Chronic Fatigue Syndrome (ME/CFS), and ran a weekly private Fatigue Clinic in London Bridge for nearly 20 years until he moved the practice online.