 The research proposes Zero Trust Block, a blockchain framework for secure and private health information exchange that addresses the challenges of traditional health data management mechanisms through its decentralized, transparent, and immutable properties. It enhances integrity with permissioned access and smart contracts, enables patient-centric control over medical data sharing, and balances transparency with confidentiality through a hybrid on-chain and off-chain storage model. The implementation on hyperledger fabric demonstrates substantial security improvements over mainstream databases via cryptographic mechanisms, formal privacy-preserving protocols, and access policies enacting patient consent. Results validate the architecture's effectiveness in achieving high throughput, low latency, and linear scalability up to 20 nodes, but future work is needed for performance enhancements, advanced cryptography, and real-world pilots. Overall, Zero Trust Block provides a robust application of blockchain capabilities to transform security, privacy, interoperability, and patient agency in health data management. This article was authored by Pratik Thanthirate and Anurag Thanthirate. We are article.tv. Links in the description below.