The Extra Help program, also known as the Low-Income Subsidy (LIS), is a Medicare program that helps people with limited income and resources pay for their Medicare Part D prescription drug plan costs. This assistance can significantly lower or even eliminate costs like premiums, deductibles, and copayments. 

To be eligible for the Extra Help program, you must meet specific income limits. Even though this is a program you enroll in through the federal government, the eligibility requirements vary by state. You can view these limits and apply for this program through the Social Security Administartion’s website.