Anyone eligible for Medicare in Northern CA should have a new Medicare card by now. If you already have your new card make sure to cut up, or preferably shred, the old one and put it in the trash. This way your social security number will not be exposed. If you are eligible for Medicare and have not yet received your new card, you may want to make sure your mailing address is up to date. Call the SSA toll free at 1-800-772-1213 (TTY: 1-800-325-0778) between 7am and 7pm Monday