An Actuarial Cost and Revenue Model for Helicopter Emergency Medical Services: Estimating Population-Based Coverage and Sustainability Thresholds
This study addresses the financial sustainability challenges of Helicopter Emergency Medical Services (HEMS) by developing a transparent, replicable two-stage evaluation framework that integrates actuarial methodologies with real-world insurance reimbursement data. The framework comprises a cost-accounting module and a revenue-prediction model, enhanced through Monte Carlo simulation (10,000 iterations) and multi-scenario sensitivity analyses. Under a baseline scenario assuming 50% commercial insurance reimbursement of billed charges and 24/7 staffing, the model identifies a breakeven threshold of 184 annual transports. However, this requirement surges to over 1,000 missions if reimbursement is limited to Medicare rates or if personnel costs double. For the first time, the model quantifies the minimum population coverage threshold necessary for HEMS viability, offering policymakers and healthcare planners an evidence-based tool for strategic decision-making and resource allocation.