St Mark's HospitalLondon North West Healthcare

Mr Gregory Thomas MBBS, BSc, FRCS, MD
Consultant Colorectal Surgeon

Mr Gregory Thomas is a consultant colorectal surgeon at St Mark’s Hospital. He has a specialist interest in pelvic floor disorders, abdominal wall hernia, proctology and other areas of benign colorectal pathology.

He qualified from Imperial College School of Medicine (St Mary’s Hospital) in 2003 with distinction in surgery and an intercalated BSc from Imperial College, London. His basic surgery training was undertaken in the northwest London region with further specialist training in southwest London and Surrey and at St Mark’s Hospital.

During his training, he undertook two years of research into pelvic floor disorders at St Mark’s Hospital and was awarded an MD (Res) from Imperial College, London. He has maintained a strong research interest in this field. He has published around 40 peer reviewed papers and four text book chapters on pelvic floor and colorectal disorders. He has presented widely on these subjects at national and international meetings. 

He was awarded a travelling fellowship from the Association of Coloproctology of Great Britain and Ireland in 2016, and has spent time at the Cleveland Clinic Hospitals in Florida and Ohio USA, and at the Centre Hospitalier Universitaire de Nantes France. He was awarded the FRCS from the Royal College of Surgeons of England in 2016.

Prior to his appointment at St Mark’s Hospital, Mr Thomas was a consultant colorectal surgeon at Ashford and St Peter’s NHS Trust in Surrey.