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Mr Pasha Nisar FRCS, is a Consultant General, Colorectal and Robotic surgeon at Ashford & St Peter’s NHS Trust, appointed in 2011.

He is a high volume surgeon with expertise in all aspects of bowel disease, proctology, hernia repair, endoscopy and colonoscopy. His focus is on achieving the best clinical outcomes and excellent results for patients.

Mr Nisar is an accredited NHS bowel cancer screening endoscopist and regularly performs advanced colonoscopy procedures. He regularly performs robotic and laparoscopic (keyhole) surgery for complex hernia and bowel conditions such as colorectal cancer, Crohn's and colitis.

He performed the first series of single incision ‘scarless’ operations for colorectal cancer and artificial sphincter implants at the Trust. He is the Clinical Lead for endoscopy at The New Victoria Hospital.

Mr Nisar is an international conference speaker and has published over 50 articles and book chapters. He established the colorectal surgery research programme with Royal Holloway, University of London and supervises PhD studies on genetic biomarkers for colon cancer.

Mr Nisar grew up in Berkshire and attended King’s College School, Wimbledon. He studied medicine at Trinity College, Cambridge University and Addenbrooke’s Hospital, graduating in 1998. He was awarded a doctorate from The University of Nottingham for his thesis at the Academic Surgical Unit. Specialist training was completed in the London Deanery including St George’s, Frimley Park and Royal Surrey Hospitals.

After being awarded the FRCS in 2009, Mr Nisar spent one year at the Cleveland Clinic USA, a world renowned centre of excellence, at the Digestive Disease Institute training under Professor Vic Fazio. He was recipient of the 'Colorectal Surgeon of The Year' award from Global Health and Pharma in 2019.



Clinical interests

  • Groin and abdominal hernia surgery, laparoscopic, robotic and mesh free repair
  • Advanced colonoscopy, EMR polypectomy, endoscopy, screening for colitis
  • Accredited bowel cancer screening colonoscopy
  • Treatment for haemorrhoids, fistula, fissures, pelvic pain
  • Diagnosis and treatment of IBS, chronic constipation and pelvic floor problems
  • Diagnosis and treatment of abdominal pain, rectal bleeding, reflux, anaemia
  • Rafaelo, THD/HALO surgery for piles and botox injections for pain
  • Keyhole/Robotic surgery for bowel cancer and diverticular disease
  • Surgery for advanced endometriosis
  • Procedures for bowel prolapse
  • Surgery for Crohn’s and colitis


Ashford & St Peter’s Hospitals NHS Trust
The Victoria Foundation
NJR accreditation Quality Data Provider for New Victoria Hospital
JAG accreditation
Freedom to Speak Up scheme
Care Quality Commission Good Rating
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