Medical Expert Witnesses UK | McCollum Consultants
McCollum Consultants is a specialist chambers of independent medical expert witnesses, providing access to recognised specialists for solicitors, barristers, insurers and other instructing parties. Our medical, surgical and nursing experts prepare independent medico-legal reports and provide expert evidence in clinical negligence, personal injury, criminal, coronial, sporting and insurance matters across the UK and internationally.

A Specialist Chambers of Medical Expert Witnesses
Founded in 2017 by clinicians with first-hand medico-legal experience, McCollum Consultants brings together established medical, surgical and nursing medico-legal expert witnesses with recognised clinical expertise and professional standing. Our experts provide clear, authoritative and independent expert opinion. For each instruction, we nominate an appropriately qualified specialists with expertise relevant to the matters in question. Every expert remains independent and solely responsible for their professional opinion, supported throughout by our responsive chambers team.
Find the right medical expert
Medical Expert Witness Specialisms
McCollum Consultants provides access to leading medical expert witnesses and clinicians across a broad range of medical and surgical specialties. Our experts combine extensive specialist clinical experience with medico-legal expertise, providing clear, independent and authoritative opinion. Explore our areas of expertise to identify the appropriately qualified medical or surgical expert witness for your case.
Clinical Negligence Expert Witnesses
Our medical expert witnesses are leading clinicians across a broad range of medical and surgical specialties. They provide independent, evidence-based reports addressing breach of duty, causation and prognosis in clinical negligence claims, drawing on specialist clinical experience and current medical evidence to provide clear, authoritative opinion for solicitors, mediation, arbitration and court proceedings.
Personal Injury Expert Witnesses
McCollum Consultants provides access to leading medical expert witnesses and clinicians across a broad range of medical and surgical specialties. Our experts combine extensive specialist clinical experience with medico-legal expertise, providing clear, independent and authoritative opinion. Explore our areas of expertise to identify the appropriately qualified medical or surgical expert witness for your case.
Criminal & Coronial Expert Witnesses
McCollum Consultants provides access to leading medical expert witnesses across medical and surgical specialties for criminal and coronial matters. Our experts provide independent, objective medico-legal opinion on injuries, clinical records, standards of care and complex medical evidence, supporting legal teams, coroners and investigative authorities in criminal proceedings, safeguarding matters and inquests throughout the UK
Sports Injury Expert Witnesses
McCollum Consultants provides access to leading medical expert witnesses across relevant medical and surgical specialties for sports injury claims and investigations. Our experts provide independent, evidence-based medico-legal opinion on injury, causation, treatment, prognosis and long-term consequences, supporting legal teams in personal injury claims, sports-related disputes and regulatory proceedings.
Instructing a Medical Expert Witness
Instructing a medical expert witness with McCollum Consultants is straightforward. Provide key party details and a brief case outline so we can complete a conflict check and identify an appropriately qualified clinician from the relevant medical or surgical specialty. If helpful, we can arrange a preliminary call with the expert to discuss the case before instruction. Experts can work on an hourly rate or provide a fixed fee, based on the volume and complexity of the medical records and other material requiring review.
Why Instruct McCollum Consultants?
Specialist Medico-Legal Expert Witnesses
We work with established medical, surgical, nursing and allied healthcare experts across a broad range of specialties. Our expert witnesses combine current clinical practice with specialist knowledge and medico-legal experience, providing independent opinion in clinical negligence, personal injury and other medico-legal matters.
The Right Medical Expert for Every Instruction
Every instruction is considered individually, with experts nominated according to the clinical issues involved and the specialist expertise required. We consider current clinical practice, subspecialist expertise and relevant medico-legal experience to ensure an appropriately qualified medical expert witness is nominated.
Medico-Legal Training
Our experts are supported through dedicated medico-legal training and continuing professional development, helping them understand the responsibilities and standards expected of an expert witness. This includes preparing clear, well-reasoned reports and maintaining independence, objectivity and an understanding of their overriding duty to the court.
A Personal, Responsive Medico-Legal Service
We build long-standing relationships with our experts and the solicitors, insurers and organisations who instruct them. Our chambers team provides a responsive and consistent point of contact throughout the instruction, from initial enquiry through to report and, where required, expert evidence.

Finalists in the 2025 PI Awards
Featured medical expert witnesses
Powered by ALLDOQ, the leading medical evidence management platform









