The Centers for Medicare & Medicaid Services will host an April 5 webinar to update health care providers and others as it rolls out new Medicare cards to beneficiaries that replace the Social Security-based beneficiary number with a new Medicare beneficiary identifier. Providers will have until Dec. 31, 2019 to transition to the new identifier for billing and other Medicare transactions. The webinar will provide an update on the mailing; how beneficiaries can look up their new card number; how providers can register with their Medicare Administrative Contractors to look up the new MBI; as well as other new resources for CMS partners. To participate, dial 1-800-837-1935 (conference ID 7065199) and log on to view the webinar.