A method for prioritized updating of a node graph data structure includes storing a node graph comprising a plurality of patient nodes and a plurality of attribute nodes; receiving, by the one or more processors, a set of data from one or more data sources, each of the one or more data sources corresponding to a different clinic visited by one or more patients represented in the node graph; inserting a first piece of data regarding a first patient having a first patient node in the node graph into a first queue and a second piece of data regarding a second patient having a second patient node in the node graph into a second queue; and updating the node graph with the first piece of data prior to updating the node graph with the second piece of data.