How to replace a Medicare Card. - Call Social Security - (800) 772-1213
MyMedicare.gov allows you to order a replacement Medicare card. To do so, select the Order Card button located on the Replacement Medicare Card tab from the My Account page.
Replacement Medicare cards can only be sent to the address of record on file with the Social Security Administration. Please make sure that your address on the Replacement Medicare Card tab is your current address before ordering a replacement Medicare card.
It may take up to 4 weeks for you to receive your new Medicare card.
If you choose to receive an entitlement letter by checking the check box located on the Replacement Medicare Card tab from the My Account page, you will receive an entitlement letter within 14 days of your successful replacement Medicare card request.
For your protection, you will not be able to order a replacement Medicare card, if one has been ordered in the last 30 days.
If your Medicare card is lost, stolen or damaged, you can ask for a new one at www.SSA.gov
The Medicare card looks like the red, white and blue card shown here.
Your Medicare card is your proof that you have Medicare health insurance.
You can use this application only to request a Medicare card. If you need a Medicaid card, please contact your state Medicaid office.
Source: Medicare.gov & SSA.gov