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In 2005, Dr Chhaya completed his training at St Bartholomew's and The Royal London School of Medicine, University of London, earning a first-class honors degree in Biomedical Engineering. He became a member of the Royal College of Physicians in 2009 after completing his general medical training and began specializing in Gastroenterology in the South Thames region.

Dr Chhaya has extensive expertise in various gastrointestinal disorders and advanced endoscopy techniques. He played a significant role in enhancing the IBD and cancer services at University Hospitals Sussex NHS Trust and supervises medical education prior to moving to the Royal Marsden Hospital and Epsom and St Helier. He currently serves as the lead for GI cancer at his NHS hospital. He is fully accredited to perform diagnostic and therapeutic upper GI endoscopy and colonoscopy, as well as advanced endoscopy such as oesophageal and enteral stenting, ERCP and biliary stenting, EUS and biopsy, and polyp removal. His clinical interests include dyspepsia and reflux, IBS and bowel habit alterations, Crohn's and colitis, GI cancers, pancreatic and liver disorders.

Dr Chhaya worked at some of London's most prestigious institutions, including St Bartholomew's Hospital, The Royal London Hospital, and The Royal Marsden Hospital. He pursued a higher degree at St George's Hospital Medical School, University of London, and was awarded an MD in 2016. He has published several articles in international peer-reviewed gastroenterology journals and remains actively involved in research and conference proceedings.

Dr. Chhaya has expertise in the following areas:

• Gastroscopy (OGD)
• Colonoscopy
• Flexible sigmoidoscopy
• Capsule endoscopy Pillcam
• Dyspepsia
• Reflux and heartburn
• IBS and bloating
• Alternations in bowel habit
• Crohn's, ulcerative colitis and Inflammatory bowel diseases
• GI cancers
• Pancreatic and liver disorders