A method according to the present invention includes receiving data through a wired connection from a medical device by a mobile computing device, where the wired connection includes an adapter that communicates with the mobile computing device using a first communication format and the medical device using a second communication format. The method further includes formatting a message including the received data for transmission to a medical data server by the mobile computing device. This method may be practiced automatically, either continuously or at set intervals, or may be initiated by someone utilizing the system (such as the patient or health care provider. The mobile computing device can be a properly-equipped cellular telephone, PDA, or other a small, portable device that is easy for a patient to transport.