Medicare program; special enrollment period and Medicare premium changes. Final rule

This final rule provides a special enrollment period (SEP) for Medicare Part B and premium Part A for certain individuals who are sponsored by prescribed organizations as volunteers outside of the United States and who have health insurance that covers them while outside the United States. Under the SEP provision, qualifying volunteers can delay enrollment in Part B and premium Part A, or terminate such coverage, for the period of service outside of the United States and reenroll without incurring a premium surcharge for late enrollment or reenrollment. This final rule also codifies provisions that require certain beneficiaries to pay an income-related monthly adjustment amount (IRMAA) in addition to the standard Medicare Part B premium, plus any applicable increase for late enrollment or reenrollment. The income-related monthly adjustment amount is to be paid by beneficiaries who have a modified adjusted gross income that exceeds certain threshold amounts. It also represents the amount of decreases in the Medicare Part B premium subsidy, that is, the amount of the Federal government's contribution to the Federal Supplementary Medicare Insurance (SMI) Trust Fund.