To empower a member to make informed health care decisions, a health care organization (HCO) graphically presents the member with a manageable closed universe of health care information via an online interactive visual interface. The online interactive interface comprises a custom category node display of member health care data based on analyzing the member profile in light of the overall health care data taxonomy built by the HCO. Upon identifying the subset of relevant health care data categories, HCO initiates the display of the identified categories by way of a dynamically linked category node interface. To enhance the member's understanding of the relationships between the category nodes, the HCO preferably employs a ring node topology by displaying the online interface as a closed network or map, such as by locating each category node along one or more closed, loop-shaped wireframes, which connect the interrelated categories.