The toll-free phone number for Medicare is 1-800-633-4227 as of 2015. Medicare recipients can also log into MyMedicare.gov to view claims, medical records and billing information and get answers about their Medicare accounts.
Users who choose to enroll in Medicare's online service can access their eligibility information at any time. Online access also allows users to view Medicare Part B deductible information, view health and prescription enrollment information, check claims, manage their prescription drug lists, and view preventative service information.
The toll-free number for technical assistance regarding MyMedicare.gov is 1-877-607-9663. Medicare also offers live chat support for problems accessing online accounts. Medicare recipients should use this live chat if they are having trouble logging into their accounts, have gotten locked out of their accounts or haven't gotten their Welcome Letters containing their passwords.