Individuals who want to find out if they are eligible for Medicare benefits should use the eligibility and premium calculator on the Medicare website, reports Medicare.gov. If their individual situations are not included in the calculator, they should contact the Social Security Administration.
To find the eligibility and premium calculator, go to the main page of the Medicare website, click on Sign Up/Change Plans on the top toolbar, click on Getting Started With Medicare, and under the heading Sign Up For Medicare, click Find Out If You're Eligible, according to Medicare.gov. Click on Find Out If I'm Eligible on the calculator, and answer questions on topics such as age and work history to determine your eligibility.
Generally, individuals are eligible for Medicare if they are U.S. citizens or resident aliens who are age 65 or over, are disabled or have end-stage renal disease, reports WebMD. To receive premium-free Medicare Part A and pay minimum premiums on Medicare Part B, enrollees must have the required number of quarters of coverage based on payroll taxes paid during working years, according to the Centers for Medicare and Medicaid Services. Those who do not have sufficient quarters of coverage but are otherwise eligible can pay premiums for both Part A and Part B coverage. Those already receiving Social Security or Railroad Retirement Board benefits are automatically signed up for Medicare when they become eligible, but others must sign up for Medicare through the Social Security Administration, states Medicare.gov.