This could be very good for health care because revolutionary potential of the new Web 3.0 technologies, and particularly blockchain, finally ends chronic issues with security, privacy, and interoperability. This paper examines the feasibility of a blockchain-based medical application in the power granted to organizations, individuals, and healthcare practitioners with the safety and sharing of health data on decentralized networks using smart contracts. This solution leverages the immutable ledger of blockchain technology and the principles of Web 3.0 to increase the efficiency of medical record administration, transparency, and limit the dangers of data breaches. It also allows customers to have more control over their personal health data while following to healthcare regulations such as HIPAA. Using a detailed investigation of the technology architecture and future use cases, this paper highlights the feasibility and advantages associated with blockchain integration into healthcare systems, eventually leading to a more secure, transparent, and patient-centered healthcare ecosystem.