1. A system for analyzing de-personalized health care data, comprising: (a) a plurality of health care databases, the plurality of health care databases each including at least one record, each record including a de-personalized yet unique patient identifier associated with a patient, whereby the de-personalized patient identifier is a common value identifying a specific patient across a plurality of health care databases that are associated with distinct database systems of different organizations; (b) one or more processors in communication with a first of the health care databases, and one or more storage devices storing instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising: (i) receiving a new record from at least one of the plurality of healthcare databases, the new record comprising a plurality of identification fields uniquely identifying a patient associated with the new record; (ii) concatenating, into a combined textual representation, text from each of the accessed plurality of identification fields included in the new record, (iii) generating at least one de-personalized yet unique patient identifier associated with the patient by encrypting the concatenated text of the combined textual representation; and (iv) storing, in a first of the health care databases, at least a portion of the received new record in association with the least one de-personalized yet unique patient identifier.