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Professor Peter Sullivan

Professional Description:

Consultant Paediatrician, Emeritus Professor in Paediatric Gastroenterology


BSc MB ChB (Hons) DRCOG MA (Oxon) MD (Manc) FHEA FRCPCH FRCP (London)

Oxford University Hospital NHS Trust
Area of work:



Professor Peter B Sullivan holds the academic position of Emeritus Professor in Paediatric Gastroenterology at Oxford University and is a Fellow of Magdalen College, Oxford. He is an honorary consultant paediatrician at the Oxford University Hospitals NHS Foundation Trust.

He trained in Manchester, Cambridge and London, and has certificates of accreditation in both General Paediatrics and Paediatric Gastroenterology awarded in November 1991 by the Royal College of Physicians Specialist Advisory Committee of the Joint Committee on Higher Medical Training.

Professor Sullivan has been a practising consultant in Teaching Hospitals for over 26 years. He initiated and developed the paediatric gastroenterology service at the John Radcliffe Hospital in Oxford. Each year this serves around 2000 Outpatients referrals, over 500 inpatients and performs over 200 gastrointestinal endoscopies.

His expert witness expertise covers the full range of gastrointestinal problems in children. With particular expertise as an authority in the gastrointestinal and feeding problems of children with neurodisability especially cerebral palsy in which subject Professor Sullivan is actively engaged in research and on which he has produced numerous scientific papers and textbooks.

All reports comply with the Civil Procedure Rules 1998 (revised Oct 2009) and he has undertaken training in the principles of the Test cases of Bolam modified by Bolitho, Bailey and Montgomery.

Professor Sullivan has produced over 150 medico-legal reports with a mixture of reports for Defendants and Claimants. Increasingly asked to provide Joint Expert Reports. Current ratio: Claimants (45%); Defendants (43%) and joint instructions (12%).

Reports include, MMR Vaccine, Autism and Inflammatory Bowel Disease, 1999 for the UK Government Medicines Controls Agency and was subsequently the Expert Witness for the Defence in the MMR and Autism Class Action.

Professor Sullivan has published over 200 peer-reviewed scientific papers in the field of paediatric gastroenterology and nutrition. His work has been cited over 4500 times and has an h-index of 37.


2016 - (Professional Solutions Learning and Development)
1. Preparing to Give Oral Evidence in Court
2. Successful Communication at Experts' Meetings
2018 - 1. Inspire MediLaw’s two-day Expert Witness Training (accredited by the Royal Society of Medicine)
2. Advanced Medico-Legal Course run by Specialist Info
2020 - 1. Bond Solon: Expert Witness Seminar 30th September 2020
2. Oxford University: Information Security and Data Privacy Awareness - 2020/21 on 07 Oct 2020
3. Royal College of Paediatric and Child Health: Expert witness in child protection (Level 3+, 4 and 5) 2nd - 3rd November 2020
4. Inspire MediLaw: Annual Expert Witness Conference, 4 December 2020


General Medical Council Registration number: 2641937(revalidation date 01/01/2024) - Indemnity: Medical Defence Union number 313767F - Registered with the Information Commissioners Office number: ZA48026.

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