In Collaborative and secure sharing of healthcare data in multi-clouds, Fabian, Ermakova and, Junghanns realized a solution of a novel architecture that externalizes data and its implementation for inter-organizational data sharing, which provides a high level of security and privacy for patient data in semitrusted cloud computing environments, using Multi-Cloud Proxy (MCP) by the side of Client. But one of the biggest challenges here is the recovery of stored data. For one request, MCP must search the data requested into different Cloud providers, which can bring some drawbacks like network overload and decrease the level of security. Therefore, the focus of our article is to propose a solution by using a Private Central Proxy Cloud implemented in a private Cloud environment, which can be an intermediate between different Cloud providers and health centers. All that to get benefits such as tight coupling, increasing the level of security, minimizing network overload problem and recovering data easily.