Mr. Valerio Celentano is a Consultant Colorectal Surgeon with over 16 years of experience, based at Chelsea & Westminster Hospital in London. He holds MD, PhD, and FRCS qualifications and specialises in colorectal cancer, inflammatory bowel disease (IBD), recurrent Crohn’s disease, ileoanal pouch surgery, and deep infiltrating endometriosis, along with expertise in benign anorectal conditions and advanced colonoscopic techniques. His academic credentials include an Honorary Senior Lectureship at Imperial College and more than 80 peer‑reviewed publications, with a focus on nerve‑sparing techniques and surgical training.

Mr. Ahmed Karim is a Consultant General and Colorectal Surgeon with around 17 years’ experience, appointed at St George’s Hospital in 2018 and Honorary Senior Lecturer at St George’s, University of London. He specialises in colorectal cancer treatment using laparoscopic and robotic surgery and also manages inflammatory bowel disease, diverticular and pilonidal disease, haemorrhoids, anorectal sepsis, and lower GI endoscopy. A former chemical engineer, he qualified in medicine in 2007, became a FRCS in 2017, and completed a rectal cancer and robotic fellowship at the Royal Marsden in 2018.

Mr. Oliver Warren is a Consultant Colorectal and Hernia Surgeon with over 23 years’ experience, based at Chelsea & Westminster Hospital and OneWelbeck in London. An Imperial College graduate (2001) and MD (2009), he received the ASGBI Gold Medal in 2012 and completed fellowships at St Mark’s Hospital (UK), Royal Prince Alfred Hospital (Sydney), and the Cleveland Clinic in Ohio. As Clinical Director of Surgery and Honorary Senior Lecturer, he also has over 100 scientific publications.

Mr. Danilo Miskovic is a Consultant Colorectal Surgeon active since 2012, with a PhD, MD, and FRCS, trained in both Switzerland and the UK. He specialises in advanced minimally invasive and robotic surgery for bowel cancer, inflammatory bowel disease, diverticulitis, and proctology. Based at St Mark’s—the world-leading bowel hospital—and HCA’s Wellington Hospital, he performs over 150 major robotic cancer operations annually and is a national and international trainer in robotic colorectal surgery.

Mr. Andrea Bille is a Consultant Thoracic (Cardiothoracic) Surgeon with around 20 years’ experience, based at Guy’s & St Thomas’ NHS Trust and London Bridge/Cromwell Hospitals under HCA. He qualified in 2005 (University of Turin), completed thoracic surgery training and fellowships in mesothelioma and minimally invasive lung cancer surgery at Guy’s Hospital, Milan’s National Cancer Institute, and Memorial Sloan Kettering in the US  . He holds MD, PhD, FRCS credentials and is a clinical lecturer, specialising in lung cancer, mesothelioma, thymoma, pleural disease, pneumothorax, pectus deformity, and mediastinal surgery.