A patient-centric doctor referral model based on hyperledger chaincode

In a variety of areas such as the financial sector, the energy sector, the Internet of Things, and most importantly, healthcare, blockchain is evolving and advancing to serve as a secure and reliable platform to facilitate effective and secure data sharing. Electronic Health Data Management privacy issue has been raised when cloud-based data is shared between stakeholders or when records are outsourced to the cloud, resulting in sensitive or private information being disclosed by unauthorized individuals. As a result of the doctor referral management process, stakeholder communications are conducted via emails, faxes, and phone calls, which may result in errors, mistakes, and misunderstandings. This paper proposes the following solutions to the identified problems: To facilitate better sharing of healthcare records between clinicians and health care facilities through an efficient referral mechanism based on advanced smart contracts named as Patient Centric Healthcare Data Management Access Control via Smart contract (PCHDMAC-SC). Doctor referrals are made through the List referral system, which is patient-centric and restricted to doctors and other authorized providers. The results demonstrate that unauthorized access cannot be traced to healthcare records as all healthcare records are encrypted as part of the working model, which keeps personal information secure, protects personal information, makes data more scalable, and allows medical records to be shared and accessed more securely. Because of this, the system of doctor referrals results in scalability, a higher level of trust, and flexibility for all stakeholders involved.