Member ID Validation
For completion by the Beneficiary, or in the presence of the Beneficiary with support, as needed.
Enter your Medicare Beneficiary Identifier to see if you are in our system.
Note: Medicare Beneficiary Identifiers must be 11 characters. The 1st, 4th, 7th, 10th, and 11th characters will always be numbers. The 2nd, 5th, 8th, and 9th characters will always be upper-case letters, except for S, L, O, I, B, and Z. The 3rd and 6th characters will be letters or numbers.
Beneficiary
Submitting form