About Justin McCarthy

Justin McCarthy is a senior associate with Gowling WLG in Ottawa and a member of the firm's Professional Liability Group. The practice is devoted entirely to defending medical professionals, both in civil claims and in regulatory matters, and it's built around complex medical and scientific evidence.

The courtroom side of that work runs through every level of Ontario's courts, including trials, summary judgment motions and appeals. Tribunals are just as familiar. McCarthy appears regularly before the College of Physicians and Surgeons of Ontario and the Consent and Capacity Board, among other health and administrative bodies, and physicians involved in a coroner's inquest often rely on McCarthy for advice and representation.

McCarthy came to law from science. An undergraduate degree in biology with a health sciences focus at Bishop's University led to a master's in microbiology and immunology at Dalhousie, and Dalhousie's law school came next. The Ontario call followed in 2018. Outside of files, McCarthy writes as a contributing author for a LexisNexis health law publication, gives talks on civil litigation and health law, and helps mentor and recruit students at the firm.

Practice areas

Civil defence for medical professionals

Defends physicians and other medical professionals in civil lawsuits. The work takes in trials and summary judgment motions, as well as appeals at the Divisional Court and the Court of Appeal.

Regulatory and tribunal proceedings

Acts in College of Physicians and Surgeons of Ontario matters at both the ICRC and the Discipline Tribunal. Regular appearances also include the Health Professions Appeal and Review Board, the Human Rights Tribunal of Ontario and the Information and Privacy Commissioner.

Coroner's inquests

Advises physicians on coroner's inquests and frequently acts as their counsel at the inquest itself.

Education & credentials

  • JD, Dalhousie University (2017)
  • Called to the Ontario Bar (2018)
  • MSc, microbiology and immunology, Dalhousie University (2014)
  • BSc, biology (health sciences focus), Bishop's University (2012)

Publications & speaking

  • Emerging Issues in Health Litigation and Regulation (contributing author), LexisNexis

Memberships & affiliations

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This listing was generated by AI from public sources in October 2026. It may contain errors, and we can’t guarantee it’s accurate or complete. Before you rely on anything here, verify it on their firm’s website. Confirm Justin McCarthy’s licence and standing in the Law Society of Ontario directory ↗

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