What is the medical insurance card number on the social security card?

The number behind the social security card number is written on the photo side of the social security card. According to the inquiry of official website Social Security Bureau, the social security card adopts the national unified standard and adopts the citizenship number. On the photo side of the social security card, a series of numbers behind the social security card number are the social security card number and the medical insurance card number. There are two numbers on the social security card, one is the bank card number and the other is the social security number. Among them, the social security number, that is, the medical insurance card number, is the ID number.