<human>: What are the most important things to know about the new Medicare prescription drug coverage?
<bot>: 
1. The new Medicare prescription drug coverage will provide seniors with access to affordable prescription drugs.
2. The program is voluntary and open to all eligible seniors, regardless of income or health status.
3. Medicare beneficiaries can enroll in the new coverage during a special enrollment period that began on January 1st, 2020.
4. To be eligible for the new coverage, you must have Part D insurance from an employer or union plan.
5. Enrollees will receive a monthly premium credit to help offset their out-of-pocket costs.
6. You may need to pay additional premiums if your income exceeds certain levels.
7. If you don’t meet the eligibility requirements, you can still purchase a stand-alone prescription drug plan.