Via communications with an association management resource, an operator of a respective fluid delivery system can associate a medical device (fluid pump) with a particular entity such as a patient, location, one or more other medical devices, the caregiver, etc. Thereafter, the operator of the fluid delivery system is able to better manage use of the fluid delivery system based on relevant medical information, which is accessible as a result of creating the association. For example, the association management resource gathers and stores information associated with the entity prior to the operator providing the input associating the fluid delivery system with the entity. After the operator of the fluid delivery system creates the association, the medical information associated with the entity is immediately available to the fluid delivery system and/or corresponding operator of the fluid delivery system.