Consultant Colorectal Surgeon
Welbeck London · HCA The Lister · Chelsea & Westminster Hospital
London Private Practice
BSc (Hons) · BMBCh · MD(Res) · FRCS (Gen Surg)
Oxford-trained colorectal surgeon. Fellowships at St Mark's Hospital and the Royal Adelaide. Specialist in minimally invasive surgery, TAMIS for early rectal lesions, and interventional endoscopy.
About
I trained at Oxford, Melbourne and London — including a fellowship at St Mark's, the world's foremost specialist colorectal centre. That foundation shapes everything I do in private practice.
Miss Sarah Mills is a Consultant Colorectal Surgeon at Welbeck London and Chelsea & Westminster Hospital NHS Foundation Trust, where she is MDT Lead for Colorectal Cancer and Rapid Access Colorectal Cancer pathways. She holds an Honorary Senior Lecturership in the Department of Surgery and Cancer at Imperial College London.
She graduated from Oxford University Medical School in 1998 and undertook surgical training in Oxford, Melbourne and London. Before her consultant appointment she completed specialist colorectal fellowships at the Royal Adelaide Hospital, Australia, and at St Mark's Hospital, London — an internationally recognised centre of excellence for colorectal disease. Her doctorate (MD, Imperial College) was awarded in 2005 for research into the immunology of inflammatory bowel disease.
In 2022 she was appointed National Training Lead for the Joint Advisory Group (JAG) on Gastrointestinal Endoscopy, the body that oversees endoscopy training and accreditation across the United Kingdom. She is a JAG-accredited endoscopist with a specialist practice in interventional endoscopy and TAMIS (transanal minimally invasive surgery) for complex polyps and early rectal cancers.
Clinical Expertise
Cutting-Edge Technique
Transanal minimally invasive surgery (TAMIS) removes large polyps and early rectal cancers through the anus — avoiding bowel resection. Miss Mills is one of a small number of UK surgeons offering this approach in private practice.
Consultations & Procedures
Training & Career
Private Practice
Insurance Accepted
Patient Reviews
Miss Mills was extremely attentive and went above and beyond to put me at ease. Her care, consideration and thoroughness were genuinely exceptional. She patiently explained everything — I never once felt rushed. Extremely rare to feel as though I'd learned everything I needed within a single consultation, but I did here.
Outstanding professionalism and expertise in dealing with a very complex surgery. Not only did Miss Mills perform as a first-class surgeon, but her support, approach and continuous care helped me recover pain free and stress free.
In a field that is traditionally male-dominated, Miss Mills stands out — not merely by breaking barriers but by setting a new standard of care. I cannot speak highly enough about her excellence in every aspect of her practice as a surgeon.
Research & Education
Miss Mills has published widely in peer-reviewed journals and presented her work at national and international conferences. Her MD(Res) examined the immunomodulatory effects of n-3 polyunsaturated fatty acids in the aetiology and treatment of inflammatory bowel disease — completed at St Mark's Hospital, awarded by Imperial College in 2005.
She sits on the RM Partners Regional Cancer Alliance group, leading on improving cancer care standards across London, and is an active participant in clinical research and audit at Chelsea & Westminster.
Appointed in 2022, Miss Mills leads endoscopy training and accreditation standards across the United Kingdom through the Joint Advisory Group on Gastrointestinal Endoscopy — the body that sets national competency requirements for all endoscopists.
UK National Role · Since 2022Miss Mills regularly leads and teaches courses in low and middle income countries in sub-Saharan Africa, including the SAFE OR course — a multidisciplinary programme for theatre teams focusing on non-technical skills, patient safety, and surgical outcomes in resource-limited settings.
Faculty, SAFE OR Course · Royal College of AnaesthetistsBook a Consultation
Consultations are available at Welbeck London (Marylebone) and HCA Sydney Street (Chelsea). Surgical procedures are performed at Welbeck and HCA The Lister Hospital, Chelsea.