McCollum Consultants
is a specialist chambers of medical expert witnesses, founded in 2017 by clinicians with first-hand experience of medico-legal practice. We bring together recognised specialists across medical, surgical and nursing disciplines, providing independent medico-legal reports and expert medical evidence for clinical negligence, personal injury, criminal, coronial, sporting and insurance matters across the UK and beyond.
Example: Cardiovascular | Urology | Cancer

A Specialist Chambers of Medical Expert Witnesses
Founded in 2017 by clinicians with first-hand experience of medico-legal practice, McCollum Consultants brings together recognised medical, surgical and nursing specialists with established clinical expertise. Our experts provide clear, independent and evidence-based opinion across clinical negligence, personal injury, criminal, coronial, sporting and insurance matters.We work with legal professionals, insurers, public bodies and other instructing organisations to identify and nominate appropriately qualified experts for the clinical issues involved in each case, while maintaining the independence of every expert and their professional opinion.
Medical Expert Witness Services & Specialist Areas
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
Our medical expert witnesses are leading clinicians across a broad range of medical and surgical specialties. They provide clear, independent and evidence-based opinions for complex, high-value personal injury claims, addressing life-changing injuries, prognosis, treatment, rehabilitation and long-term care needs to support solicitors in settlement negotiations, dispute resolution and court proceedings.
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
Nursing Expert Witnesses
We provide access to experienced nursing expert witnesses across a broad range of nursing and healthcare specialties. Our senior nurses and advanced practitioners provide independent, evidence-based medico-legal opinion on nursing standards, quality of care, clinical practice and alleged negligence. Supporting clinical negligence, personal injury and other complex legal matters, our nursing experts provide clear, objective analysis to help solicitors and the courts understand complex nursing and healthcare issues
Sporting 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.
Why Instruct McCollum Consultants?
The Right Medical Expert for Your Case
We help legal professionals, insurers and other organisations identify an appropriately qualified medical expert witness from the relevant medical or surgical specialty. Provide key party details and a brief case outline, and we will complete a conflict check and nominate a suitable expert for your consideration.
Personal, Collaborative Relationships
We believe expert witness work should be personal, not transactional. We build long-term relationships with both our clinical experts and the professionals who instruct them, giving us a genuine understanding of their expertise, working practices and requirements. This allows us to provide informed, responsive support and create effective working relationships throughout each instruction.
Education, Training & Professional Development
Education is an important part of our offering. We provide complimentary training and educational events for both our clinical expert witnesses and the legal professionals, insurers and organisations who instruct them. From medico-legal training and professional development for experts to educational sessions on medical evidence and specialist clinical topics for instructing parties, we create opportunities to share knowledge, strengthen professional relationships and support best practice.
Support Throughout the Instruction
Our involvement extends beyond simply introducing an expert. From initial enquiry and preliminary case discussions to fees, instruction and ongoing case management, our team remains accessible and engaged throughout the process, providing a consistent point of contact for both experts and instructing parties.

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









