What does the eligibility for Medicare consist of at the age of 65?

At the age of 65, eligibility for Medicare consists of being automatically enrolled in Medicare Part A and having the option to enroll in Part B. If an individual has been working and paying Medicare taxes for at least 10 years (40 quarters), they will receive Medicare Part A without a premium. Part B, which covers outpatient care, preventive services, and some home health services, is optional and requires a monthly premium.

The response that emphasizes being over 65 and enrolled in Medicare Part B captures the essence of Medicare eligibility accurately, as all individuals at this age are eligible for Medicare, and while Part A enrollment is typically automatic, enrollment in Part B requires action on the part of the individual. This gives a comprehensive overview of Medicare eligibility criteria and enrollment processes.