Dr. Thomas is a Neurologist and Headache Specialist and Honorary Clinical Teaching Fellow in the Queen Square Institute of Neurology at the University College London. The Chairman of the World Headache Society, he is a board-certified neurologist and Founder, Trustee, & Treasurer of the Asia Pacific Headache Society. He is a Consultant?Neurologist and?Lead of Headache Medicine in Basildon and Thurrock University Hospitals, NHS Foundation Trust. Dr. Thomas is a reviewer for Headache, the official journal of the American Headache Society and the Chief of the Headache Section of the Journal on Recent Advances in Pain. He has more than 20 years’ experience treating patients with headache and is a board-certified neurologist and completed his clinical fellowship in headache.