Social Security & Medicare

Medicare enrollment through Social Security

Apply for Medicare Part A and Part B through the Social Security Administration (SSA). First check whether you are already enrolled and which enrollment period applies. Choosing a Medicare Advantage or drug plan is a separate step through Medicare.gov.

Checked 2026-11-046 sections
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Medicare enrollmentssa.gov
Go to ssa.gov
Part A and Part B enrollment
Handled through Social Security source
Usual eligibility age
65; some people qualify earlier through disability or permanent kidney failure source
Application assistance
800-772-1213 source
General Enrollment Period
January 1-March 31; coverage starts the following month source

Can I enroll in Medicare through Social Security?

Yes. The SSA Medicare sign-up page handles initial Part A and Part B enrollment. Part A is hospital insurance; Part B is medical insurance. The online route lets eligible applicants choose both parts or Part A only. Use Apply for myself or the separate option for helping someone else.

Before starting, review your existing coverage and any Medicare card or enrollment notice. SSA says people age 65 or older who receive Social Security benefits are automatically enrolled in Part A. Confirm your actual coverage rather than assuming that a retirement-benefit application and every Medicare choice are the same request.

Can I enroll in Medicare at 62?

Age 62 alone does not qualify someone for age-based Medicare. Most people first qualify at 65. People under 65 may qualify through disability benefits or permanent kidney failure. Supplemental Security Income (SSI) alone does not establish Medicare eligibility.

If applying because of end-stage renal disease, SSA directs you to call 800-772-1213 and explain that reason for the application. Use the instructions for your eligibility category instead of assuming that the ordinary age-65 online route applies.

Which Medicare enrollment period applies to me?

For enrollment around age 65, use the birthday calculator on SSA’s When to sign up page to find your Initial Enrollment Period. Check these dates before your birthday. The annual fall window for changing Medicare plans serves a different purpose from first enrolling in Part A and Part B.

Employer group health coverage may allow you to delay enrollment or Part B. SSA describes a Special Enrollment Period while you or your spouse are still working and covered, and generally for eight months after employment or that coverage ends, whichever happens first. Check the specific coverage and dates rather than assuming every insurance policy provides this protection.

If you miss the other periods, the General Enrollment Period runs January 1 through March 31, with coverage beginning the following month. Other special circumstances may provide a different enrollment opportunity. SSA links to Medicare.gov for those situations.

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How do I start my Medicare benefits for the first time?

  1. Confirm whether enrollment is automatic and decide whether you need both Part A and Part B or Part A only.
  2. Check the enrollment period for your age, eligibility category, and existing employer coverage.
  3. Open SSA’s Medicare sign-up page and choose the appropriate application option. Follow its requested identity and coverage questions.
  4. Keep the submission confirmation and use SSA’s application-status route to follow the request. Review the enrollment decision and effective date.

If you need help applying, call SSA at 800-772-1213 and say whether you want Parts A and B or Part A only. SSA also provides appointment assistance. A submission confirmation records the request; check the actual coverage start date before relying on enrollment.

What if I already have Part A and need Part B?

Use Sign up for Part B only on the SSA page. That is a separate application route for people who previously declined or never enrolled in Part B. Its forms and supporting employment evidence depend on the enrollment circumstances. Do not start a duplicate initial Part A application to add Part B.

What is the penalty for not enrolling in Medicare at 65?

Signing up late can produce a coverage gap and a late-enrollment penalty. Whether a penalty applies depends on the part of Medicare and whether a valid exception or Special Enrollment Period applies. Turning 65 with qualifying employer group coverage is different from simply deciding to wait without checking the rules. Use the SSA timing page and Medicare.gov enrollment questions to identify the applicable route before delaying.

FAQ

Does this application choose a Medicare Advantage plan?

No. SSA handles Parts A and B. Review Medicare Advantage and drug-plan choices through Medicare.gov.

Can I use the fall plan-change window instead of initial enrollment?

Check your initial or special enrollment period for Parts A and B. The fall plan-change window does not replace those enrollment rules.

Sources · checked 2026-11-04

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