A method according to an aspect of the present invention includes receiving data from a plurality of medical devices through a wired connection, transmitting the data to an intermediary device, and formatting a message including the received data for transmission to a medical data server. This method can be practiced automatically to allow a medical device for a patient or other subject to be monitored without requiring the patient to manually enter information. This method also allows any number of different medical devices to be monitored, even where such devices each communicate using different wired connections and/or using different communication protocols.