Clinical team

If you would like to contact any of the individuals listed below, please contact the JAG office by email at

You can also read about the JAG office team here.

Professor Matt Rutter

JAG Chair

I am delighted to have been appointed as the next JAG Chair. Throughout my career, JAG has been pivotal in the modernisation of UK endoscopy services and endoscopy training. Despite the many challenges that our specialty faces, both new and old, the UK’s multidisciplinary endoscopy community remains its strongest asset. I look forward to working with the JAG team and the endoscopy community at large to help us overcome these challenges and to continue to evolve our services to deliver the highest quality care for our patients and population.


Dr Mark Jarvis

JAG accreditation Chair

Mark trained at Oxford University and Imperial College London, gaining the Rudolph Kohnstamm prize for clinical medicine before qualifying in 1999. Based mainly in England he has also worked in Glasgow and in New Zealand. He accepted his current post as a Consultant Gastroenterologist in Basildon, Essex in 2013. Mark has a passion for clinical quality in endoscopy. He became a JAG assessor in 2019 and Chair of JAG accreditation in 2022.

Miss Sarah Mills

JAG training Chair

Sarah is a Consultant Colorectal Surgeon at Chelsea and Westminster Hospital and Chair of ACPGBI Colonoscopy Committee. She is passionate about improving access to and quality of endoscopy training in the UK

Debbie Johnston

Head assessor for accreditation

Debbie is the head assessor, providing expert leadership to over 30 assessors, ensuring consistent application of the JAG standards, and assessments of the highest possible quality. She has over 30 years’ experience in healthcare in nursing, managerial, quality improvement and quality assurance roles, and has played a key role in the development of JAG accreditation since its establishment in 1994.

Photo of Debbie Johnston

Helen Griffith 

JAG Nurse Lead 

Helen has contributed to the development of endoscopy services during her thirty three year career in the speciality. This includes roles as a nurse consultant, clinical endoscopist, national nurse advisor to the NHSBCSP, decontamination advisor to the BSG, and as a lead assessor for JAG. Although semi-retired, Helen has seen and assisted in the considerable improvement in quality and safety of endoscopy service in the UK. Helen will take over the position of JAG Nurse Lead in September.


Richard Robinson

Bowel cancer screener accreditation (BCSA) Panel Chair

Richard is the chair of the BCSP accreditation panel, having been a bowel cancer screening colonoscopist for over 10 years. He has a long-standing interest in endoscopy training and assessment having established Leicester as a JAG training centre in 2004 and more recently as an accreditation centre for both BowelScope and bowel cancer screening. He is clinical director of the University of Leicester Hospitals bowel cancer screening service. In 2014, he established the Ghana Endoscopy Project and with colleagues has regularly taught training the trainer colonoscopy courses and basic endoscopic skills courses in Ghana.

Dr Tom Lee

National Endoscopy Database (NED) Chair

The Joint Advisory Group for GI Endoscopy are pleased to announce the appointment of Dr Tom Lee to the position of NED Chair Designate.  In the coming months, Tom will succeed Prof Matt Rutter as Chair of the National Endoscopy Database.  Tom is a Consultant Gastroenterologist in Northumbria with a keen interest in endoscopy and cancer genetics. He has served as Clinical Lead for the National Endoscopy Database since 2014 and is co-chair of the Northern Region Endoscopy Group (NREG).  Tom has a strong background in endoscopy research, improvement and implementation of new technology.  We look forward to working with Tom on the continued development of NED and the opportunities it represents to the UK endoscopy community.

Phedra Dodds

JETS Workforce lead

Phedra has been chair of the Welsh Endoscopy Nurse Training faculty since 2015 and has focused on quality improvement as part of the national endoscopy team where she was lead nurse from 2002-2015. Phedra is responsible for providing leadership and direction for JETS Workforce and leads on the implementation of competency framework and training packages.

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