How to check the card number of Canadian maple leaf card? Where can I provide the cardholder's card number? CIBC, hospital, family doctor?

Maple leaf card number is a string of codes in front of the bar code at the top of the back of the card. If you lose it, only the Canadian Immigration Bureau can find the Maple Leaf card number. None of the institutions mentioned above register maple leaf cards, they only register SIN cards.

If you want to check the card number, you can take the SIN card or immigration paper (a piece of paper given by the customs when you first land) and your valid certificate to the Canadian Immigration Bureau.

You can't find someone else's maple leaf card number. Unless authorized by the cardholder himself.