Which of the following factors qualifies a person for Medicare?

Being 65 years or older is a key qualifying factor for Medicare eligibility. The program primarily serves individuals who are 65 and older, although there are provisions for younger people with certain disabilities or specific health conditions, such as end-stage renal disease or amyotrophic lateral sclerosis (ALS). This age criterion is critical because Medicare was designed to provide coverage for the elderly, catering to their increased health care needs as they age.

While other factors might influence an individual’s eligibility for other benefits or programs (such as disability benefits), or income might affect how much one pays for premiums under Medicare, the age criterion is a fundamental determinant for initial eligibility for Medicare coverage.