This paper proposes MediLink, a blockchain-based platform to store, share, and manage secure medical records. Patients and care providers in healthcare systems today typically face problems of data privacy compromises, system-to-system noninteroperability, and bureaucratic administration. These present risks to compromised patient care as well as expose data security gaps. MediLink addresses these challenges head-on by developing a decentralized, transparent system that places patients in control, with full control over their medical information while ensuring the integrity and confidentiality of the same. The platform employs smart contracts to carry out important functions such as processing insurance claims, handling patient consent, and keeping track of audit trails. Not only does this reduce human errors between humans but also saves administrative burdens and costs as well. Utilizing the strength of blockchain technology, MediLink not only secures data—yet also streamlines the easy exchange of patient records between healthcare providers. The end result? Seamless care coordination, enhanced patient outcomes, and a smoother experience for all.