Medicare and Social Security are connected, but they are not the same benefit. Medicare provides health coverage; Social Security pays retirement, disability and other benefits. You can apply for Medicare without starting monthly retirement payments.
Who handles what?
| Question | Start here |
|---|---|
| Eligibility or signing up for Parts A and B | Social Security; railroad cases may involve the Railroad Retirement Board. |
| Original Medicare coverage or claims | Medicare. |
| Private plan network, benefits or authorization | The plan's member-services team. |
| Medicaid eligibility or renewal | Your state Medicaid agency. |
Will enrollment be automatic?
If you receive Social Security benefits at least four months before turning 65, you generally receive Medicare enrollment materials automatically. Review the Parts A and B start dates on your card. Residence in Puerto Rico or outside the United States can change automatic Part B procedures.
If you are not receiving benefits, do not assume a card will arrive. The usual initial enrollment window begins three months before your 65th-birthday month and ends three months afterward. Contact Social Security about your individual dates.
Retirement age is different
Starting retirement payments at 62 does not ordinarily begin Medicare. Likewise, waiting until full retirement age to claim Social Security does not postpone your Medicare deadline. Under-65 Medicare has separate disability, ALS or ESRD rules.
If you have coverage through current employment, confirm whether delaying Part B is appropriate. COBRA and retiree coverage do not provide the same enrollment protections as qualifying current-employment group insurance.
How premiums are paid
Part B premiums are usually deducted from Social Security payments when you receive both benefits. Otherwise, Medicare generally bills you. Private plan and Medigap premiums can have separate arrangements. Review notices instead of assuming one deduction pays every policy.
Keep your records aligned
Report address and relevant personal-record changes through the appropriate official channel. Keep applications, confirmation numbers, benefit notices and coverage dates. Before changing employment coverage or making HSA contributions after 65, check Medicare's effective dates, including possible retroactive Part A coverage.
Related coverage questions
- Turning 65: A Practical Medicare Enrollment Checklist
- Medicare Part B Late Enrollment Penalty: Rules and an Estimate
- Your Medicare Card: Replacement and Safe Use