Medical Malpractice Claim Severity Escalating as Social Inflation Drives Casualty Costs Higher

Why It Matters

Escalating malpractice costs pressure insurers’ profitability and may trigger higher premiums for providers, reshaping the medical liability market. Understanding the drivers helps underwriters, investors, and policymakers anticipate pricing and reserve needs.

Key Takeaways

• Unpaid severity per open medical claim reached $151,768 in 2018
• Median malpractice awards projected to more than double by 2025
• Top insurers added $129 million+ in reserve strengthening for 2025
• New Mexico, Utah, South Carolina show combined ratios above 120%
• Litigation finance lengthens cases, inflating settlement targets

Pulse Analysis

Social inflation is redefining medical malpractice risk, as third‑party litigation funding and aggressive attorney advertising push settlement expectations upward. Recent data show median awards for high‑profile cases more than doubling by 2025, while "nuclear" verdicts—payments exceeding $500,000—now represent over a third of all physician-related payouts. These dynamics amplify the cost of defending claims, prompting insurers to reassess pricing models and capital allocations to stay solvent in an increasingly litigious environment.

Reserve development reflects the severity surge. The five largest medical liability carriers collectively added roughly $453 million in reserve strengthening for 2025, with Curi Holdings alone reporting $129.2 million. Calendar‑year 2025 saw an adverse $259 million development on claims‑made business, only partially offset by a modest $15.7 million gain on occurrence policies. Pandemic‑deferred lawsuits are resurfacing, driving more cases to trial and inflating ultimate loss estimates, a pattern that threatens profitability across the broader casualty portfolio.

State‑level legal frameworks compound underwriting challenges. Jurisdictions lacking caps on noneconomic damages—such as New Mexico, Utah and South Carolina—exhibit combined ratios exceeding 120%, far above the U.S. aggregate of roughly 76%. This geographic disparity forces insurers to price risk more granularly and allocate capital strategically. With the industry’s combined ratio for medical professional liability topping 105% for the fifth time in eight years, stakeholders must monitor legislative trends and reserve adequacy to mitigate the ongoing cost escalation.