Integrity Medio-Legal is a group of reliable, thoughtful and empathetic orthopaedic surgeons who provide expert opinions to both insurers and plaintiff-lawyers regarding personal injury, compensation, and disability claims.

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Director & Expert Witness | Available in Brisbane, Gold Coast, Sunshine Coast, Rockhampton, Mackay, Townsville & Cairns

Dr Mark Shaw is a Brisbane-based, experienced expert witness. After graduating as a Fellow of the Royal College of Surgeons (Orthopaedics) in 1993, Dr Shaw took on the role of Director of Orthopaedics at the Mackay Base Hospital, before entering private practice in Mackay and later Brisbane.

He has performed hundreds of surgeries - particularly in respect of shoulder and knee injuries and conditions - and is passionately interested in the intersection of medicine, insurance and the law.

Dr Shaw is briefed by both insurers and plaintiffs alike, and has a well-deserved reputation for thoroughness, independence and impartiality.

Dr Shaw was driven to start Integrity Medico-Legal by a wish to share his experience and skills in the legal and compensation fields with other surgeons, after more than a decade of providing medico-legal reports as a sole operator.

He is a keen cyclist.

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Expert Witness | Available in Brisbane, Hervey Bay, & Bundaberg

Dr Kolarik has been practising as an orthopaedic surgeon all over the world since 1984, including in Czechoslovakia, South Africa, Kuwait, Botswana, and, since 2002, in Australia.

He presently resides in Hervey Bay, and splits his work-time between his role as the Orthopaedic-VMO to Bundaberg Hospital and as a medico-legal consultant.

As well as being a Certified Independent Medical Examiner in the AMA 4, 5 and 6, Dr Kolarik is a registered trained assessor in the Guidelines for Evaluation of Permanent Impairment, First & Second Editions (GEPI 1 & GEPI 2), he is certified for the Assessment of Permanent Impairment in Motor Accidents under the NSW guidelines, and has completed training in Comcare assessments.

He loves spending time with his wonderful wife, playing all sorts of sports, reading, and meeting people.

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Dr Peter Hewitt MBBS FRACS

Expert Witness | Available in Brisbane

Dr Hewitt is currently Visiting Specialist Orthopaedic Surgeon at the Greenslopes Private Hospital and at the Mater Redlands Private Hospital (both since 2002), as well as a Medical Specialist on the Workers' Compensation Regulator's Medical Assessment Tribunals and a Clinical Assessor for the Royal Australasian College of Surgeons’ Queensland Audit of Surgical Mortality (QASM).

He is a general orthopaedist, with extensive experience in managing trauma and shoulder surgery, and his particular special clinical interests include surgery to the hip and knee and computer navigation in surgery.

Outside of work, Dr Hewitt loves fishing and sailing.

Dr Hewitt has undergone training in AMA 4 and 5, as well as GEPI.

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Associate Professor Gary Nielsen MBBS FRACS CIME

Expert Witness | Available in Brisbane

Dr Nielsen is a general orthopaedic surgeon with a special interest in hip, knee and lower limb surgery who currently practices both publicly and privately in Brisbane. He is the current State Chairman of the Australian Orthopaedic Association and a member of the Workers' Compensation Regulator's Medical Assessments Tribunal.

He is passionate about education and has spent many years as Senior Lecturer at the University of Queensland, and is a past Chairman of Training for the AOA's Queensland Orthopaedic Training Program.

Dr Nielsen is CIME (ABIME) in AMA 5 and GEPI 1 & 2.

He loves hiking, cycling, regularly plays tennis, and enjoys traveling with his family.

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Dr Matt Wilkinson MBBS FRACS CIME

Expert Witness | Available in Brisbane, North Lakes, Melbourne & Hobart

Dr Matt Wilkinson is a young, highly experienced and widely published, general orthopaedic surgeon. Originally hailing from Liverpool, Dr Wilkinson first came to Australia early in his school days, and has spent most of his orthopaedic career based in North Queensland.

Currently he is the Clinical Director of Orthopaedics, and the Director of Orthopaedic Training, at the Townsville Hospital; the Director and the Chairperson of the Orthopaedic Research Institute of Queensland; an executive committee member of the Australian Orthopaedic Association Qld; Adjunct Senior Lecturer at James Cook University; and visiting medical officer to the Townsville, Cairns and Mackay Hospitals.

He has been an Australian Army Reservist, and an active member of the humanitarian arm of the Australian Orthopaedic Association, Orthopaedic Outreach, making several trips to Fiji to teach advanced trauma courses to local surgical trainees.

Dr Wilkinson is always busy with research and writing papers, not to mention with his three young sons, running marathons, and swimming.

He is CIME in AMA 5 (relevant to claims in Queensland) and accredited to assess workers’ permanent impairment under the Tasmanian WRCA (AMA 4).

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Dr John Maguire MBBS FRACS MSpMed CIME

Expert Witness | Available in Brisbane & Cairns

Dr John Maguire is a general orthopaedic surgeon with special Fellowships in knees as well as shoulders. He has a Masters of Sports Medicine and is the Cowboys NRL team’s official orthopaedic surgeon.

Further, in addition to his busy clinical practice (current), over the years Dr Maguire has been an active member of the Royal Australian Navy, a coach for local junior sports, particularly rugby union, and an amateur rower.

He is CIME in AMA5 and has extensive courtroom experience. Recent judgments which considered Dr Maguire’s evidence include Rook v Crofts, Bode v Queensland All Codes Racing Industry Board, Arndt v Horwood, and Allianz v Girone.

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Dr Peter Johnstone MBChB

Expert Witness | Available in Brisbane for both short CTP reports and standard medico-legal reports

Dr Johnstone has been practicing general orthopaedic surgery for the past 28 years. He worked as the Director of Orthopaedics at Princess Alexandra Hospital for four years.

He has his private practice at the Mater Hospital, Brisbane and also provides orthopaedic surgery services to Queensland Health.

He has undertaken medico-legal assessments and reporting since 1990. Dr Johnstone has AMA 4 & 5 certification and GEPI 1 & 2.

In his spare time he has interests in beef farming. He regularly plays tennis and enjoys sailing, fishing and walking activities.



Expert Witness | Available in Townsville