The health insurance industry faces challenges like inefficiencies, fraud, lack of transparency, and limited customization. With its decentralized structure, smart contracts, and immutable records, blockchain technology offers a transformative solution by enhancing transparency and operational efficiency. This study proposes a blockchain-based health insurance model to improve transparency, fairness, and efficiency while addressing existing limitations. The proposed framework integrates smart contracts with quadratic voting (QV) and advanced validation techniques, creating a democratic, secure, and customizable insurance process. The model tailors personalized insurance plans to collective preferences using QV-based decision-making and dynamic pricing. Blockchain enhances trust and system reliability, while the inclusion of QV fosters inclusivity and fairness. By combining blockchain's decentralized architecture with QV, the proposed system overcomes the limitations of traditional insurance, offering a scalable, efficient, and equitable alternative that aligns individual preferences with societal health goals.