Using a centralized system, it is possible to allow multiple disparate health care providers to gain a complete view of data regarding a patient's health and health care. Data accessible through such a central system can also be made available for researchers after being de-identified. Data in such a central system can not only include data culled from traditional physical and electronic medical records, but can also include data from distributed diagnostic devices, such as fitness trackers and consumer diagnostic equipment. Such a central system could potentially be accessed through applications made available to patients and health care providers and, in implementations where they are present, such applications could also be used for other purposes, such as performing interactive health evaluations and making recommendations of actions to take to maintain or restore a user's health.