Yes. If you are receiving Social Security, the Social Security Administration will automatically sign you up at age 65 for parts A and B of Medicare.
(Medicare is operated by the federal Centers for Medicare & Medicaid Services, but Social Security handles enrollment.)
Social Security will send you sign-up instructions at the beginning of your initial enrollment period, 3 months before your 65th birthday.
Medicare Part A
Covers basic hospital visits and services and some home health care, hospice and skilled-nursing services. If you are receiving or are eligible to receive Social Security retirement benefits, you do not pay premiums for Part A.
Medicare Part B
To enroll in Medicare Part B, it’s akin to standard health insurance and carries a premium. The base rate in 2019 is $135.50 a month. Higher-income individuals pay more depending on the amount of income. You can opt out of Part B — for example, if you already have what Medicare calls “primary coverage” through an employer, spouse or veterans’ benefits and you want to keep it. (Check with your current insurance provider to make sure your coverage meets the standard.) Opting out will not affect your Social Security status, but you might pay a penalty in the form of permanently higher premiums if you decide to enroll in Part B later.
Medicare Part C (also known as Medicare Advantage)
An alternative to Part B that is provided by private insurers, you must sign up on your own. The same goes for Medicare Part D, prescription drug coverage.
Keep in mind..
If you are living abroad or are outside the United States when you become eligible, contact the nearest U.S. embassy or consulate to enroll in Medicare.