Abstract: A method of managing healthcare data is disclosed. Healthcare data of the first healthcare database operated by a first healthcare data management system (HDMS) is collected. The collected healthcare data is stored in a second healthcare database operated by the second HDMS. The healthcare data between the first healthcare database and the second healthcare database are synchronized by detecting a change in the healthcare data of the first healthcare database, creating a delta file representing the change in the healthcare data of the first healthcare database, transmitting the delta file to the second HDMS and updating the healthcare data of the second healthcare database based on the delta file.