Madeline can enroll in Medicare Part A without paying premiums because of which reason?

Madeline can enroll in Medicare Part A without paying premiums because her spouse contributed to Medicare during their working years. This is one of the eligibility criteria for premium-free Medicare Part A. Generally, individuals qualify for premium-free Part A if they have worked and paid Medicare taxes for at least 40 quarters (10 years). However, the rule also extends to spouses who have contributed to the Medicare system, allowing a scenario where a non-working partner can receive Part A benefits without premiums based on the work history of their spouse.

The other options wouldn't provide the same eligibility criteria for premium-free enrollment. For example, having a disability might allow for enrollment in Medicare, but it does not guarantee premium-free Part A unless specific work requirements are met. Being over 70 years old does not inherently affect premium costs for Part A; age alone does not qualify someone for premium-free coverage. Receiving Social Security benefits may allow someone to enroll in Medicare, but it does not directly influence whether they would pay premiums for Part A unless they meet the work history requirement.