Original Medicare (Parts A and B) eligibility is primarily based on age, citizenship, or legal residency for at least five continuous years. Most individuals qualify at age 65, while those under 65 may be eligible due to certain disabilities. Enrollment typically occurs during the Initial Enrollment Period (IEP), which starts three months before the individual's 65th birthday month and extends for three months after. To know more visit here https://www.capitalbluemedicare.com/wps/portal/capm/home/what-is-medicare/eligibility-enrollment
