How can I read a Medicare card?

The card number and card expiry date information is encoded on track two, so you’ll need a track two magnetic stripe reader.

The data on a Medicare card is arranged in four fields, each separated by an = character. The first field can be ignored, the second field is the first nine characters of the card number, the third field is the tenth digit of the card number, and the final field is the card expiry date, in ddmmyy format.