Who is eligible for Medicare?

Medicare eligibility is primarily determined by age and certain health conditions. Individuals who are 65 years old or older are eligible for Medicare, which is a federal health insurance program designed mainly for seniors. Additionally, individuals under 65 can qualify if they have specific disabilities that meet the criteria set by Medicare, particularly those who have been receiving Social Security Disability Insurance (SSDI) for at least 24 months.

This eligibility criterion reflects the program's focus on providing healthcare coverage to both older adults and those with significant health conditions, ensuring that vulnerable populations receive necessary medical support. The other options do not encompass the full eligibility criteria set forth by Medicare, as it does not restrict coverage to only those over 70, only those with chronic illnesses, or anyone over the age of 18 without considering age and disability statuses.