A medical device includes: a communication data file generator that generates a data file that is transceivable by using a prescribed protocol that is different from a communication protocol of a DICOM standard, the data file including metadata based on medical information relating to a subject; and a transmitter that outputs the data file generated by the communication data file generator to a network drive that does not implement an application relating to DICOM, the network drive being connected via a network specified by the prescribed protocol.