In the era of exponential surge in volume of healthcare data propelled advancements in technology and digitalization of medical data, securely managing the medical records is a significant challenge. The rapid growth encompasses diverse forms of data, ranging from patient electronic health records to genomic information and medical imaging files. Ensuring the confidentiality, integrity, and availability of this data is paramount to safeguarding patient privacy, preventing unauthorized access, or tampering, and mitigating the risks of data breaches and cyberattacks. We utilize the Ethereum blockchain to store each medical record in a block and connect it to the previous one using a hashing function, all secured by the Keccak-256 algorithm. A smart contract is integrated to protect the rights of both doctors and patients and to ensure smooth transactions between them. This paper underscores the significant impact of blockchain technology in healthcare, by strengthening security, privacy, and efficiency. Through the integration of robust security measures and the implementation of smart contracts, secure and automated financial transactions are facilitated, bolstering trust, and streamlining operations. Continuous performance assessment ensures seamless functionality, highlighting blockchain’s pivotal role in reshaping healthcare delivery.