To prevent an increase in the number of displayed patient names in the case that patients having the same family name and patients having the same family and first name are present, and to allow display to be easily seen even when a patient having the same family and first name is present about a certain patient in the case that a plurality of patients having the same family name are present.

The family name portion of a patient in which at least one of Kanji of its family name and its reading Kana indicates a match is displayed by a first method different from a usual method, the family name portion and first name portion of a patient in which at least one of Kanji and reading Kana of its family name and its reading Kana indicates a match are displayed by a second method different from the usual method, and name information in which family names match each other are displayed side by side. Therefore, displayed names can be made not to overlap each other, and the number of displayed name information can be made not to increase. Furthermore, because the names of the patients having the same family name and the patients having the same family and first name are displayed all together, difficult viewing due to mixing of the names of other patients is ceased and a displayed field of the same family names and first names can be readily viewed.