Where to Apply for Medicare: The Three Main Routes

You can explore through Social Security, Medicare directly, or your state Medicaid office — which one depends on your age and whether you already receive benefits

Most people explore through Social Security, either online at ssa.gov or by calling 1-800-772-1213. If you are turning 65, Social Security handles Medicare enrollment as part of the same process. If you are already receiving Social Security retirement or disability benefits, Medicare enrollment happens automatically three months before your 65th birthday — you do not need to do anything.

If you are under 65 and have End-Stage Renal Disease (ESRD) or ALS (Lou Gehrig's disease), you can explore directly through Medicare at 1-800-MEDICARE or online at Medicare.gov. These conditions may have access to you regardless of age. If you are under 65 and disabled, you must first be approved for Social Security Disability Insurance (SSDI); Medicare may be able to access follows automatically after you have received SSDI for 24 months.

If you are explore for both Medicare and Medicaid at the same time, your state Medicaid office may handle the Medicare process as part of the joint process. Contact your state Medicaid agency directly to confirm whether they will submit your Medicare paperwork or whether you need to file separately with Social Security.

Key Takeaways

• Social Security handles most Medicare applications for people turning 65, whether you explore online, by phone, or in person at a local office.
• If you already receive Social Security retirement or disability benefits, Medicare enrollment is automatic three months before your 65th birthday with no action required.
• People under 65 with ESRD or ALS can explore directly to Medicare by phone or online without going through Social Security first.
• If you are explore for Medicaid at the same time, ask your state Medicaid office whether they will file your Medicare paperwork or whether you need to file separately.
• The best time to enroll is during your Initial Enrollment Period, which runs three months before, during, and three months after the month you turn 65.

explore Through Social Security in Person or by Phone

You can walk into any Social Security office and ask to enroll in Medicare. Bring your birth certificate, proof of citizenship (passport, naturalization papers, or state ID), and your Social Security card. The office staff will fill out the process with you — you do not need to complete forms on your own. Wait times vary by location; calling ahead to schedule an appointment usually takes 15 to 30 minutes off your visit.

If you prefer the phone, call 1-800-772-1213 Monday through Friday, 7 a.m. to 7 p.m. your local time. Have your Social Security number, birth date, and citizenship information ready. The representative will ask whether you want Original Medicare (Parts A and B) or a Medicare Advantage plan (Part C). If you are unsure, you can enroll in Original Medicare now and switch to Advantage later during the annual open enrollment period in the fall.

Social Security will mail you a Medicare card within two weeks of approval. Your coverage usually starts on the first day of the month you turn 65, even if your card arrives later. You can check the status of your process online at ssa.gov by logging into your My Social Security account.

explore Online Through Social Security or Medicare.gov

The Social Security website (ssa.gov) lets you create an account and start a Medicare process without leaving home. Log in to My Social Security, select "explore for benefits," and choose Medicare. The form asks for your name, date of birth, citizenship status, and whether you want Part A, Part B, or both. You can save your progress and come back later if you need to gather documents.

Medicare.gov also has an online process, though it routes to Social Security behind the scenes. The Medicare process is simpler if you are under 65 with ESRD or ALS — you can explore directly without a Social Security account. For people 65 and older, both sites lead to the same Social Security system.

Online applications typically process within one to two weeks. You will receive a confirmation number when ready after submission. Check your email or My Social Security account for updates on your status. If Social Security needs additional documents, they will contact you by mail or phone.

explore if You Are Under 65 with ESRD or ALS

End-Stage Renal Disease and ALS are the only conditions that let you enroll in Medicare before 65 without first being on Social Security Disability Insurance. Call 1-800-MEDICARE (1-800-633-4227) and tell the representative your diagnosis. They will take your process over the phone and mail you forms to sign and return.

You will need to provide medical documentation showing your ESRD diagnosis (usually a letter from your nephrologist) or ALS diagnosis (usually a letter from your neurologist). Social Security will verify the diagnosis with your doctor's office directly — you do not need to obtain the letter yourself, though having it ready speeds the process.

Coverage typically begins the first day of the month after Social Security approves your process. This usually takes four to six weeks. If you are already on dialysis or have been diagnosed recently, contact Medicare as soon as possible; the sooner you enroll, the sooner your coverage starts.

explore if You Are Under 65 and Disabled

If you are under 65 and do not have ESRD or ALS, you must first receive Social Security Disability Insurance (SSDI) for 24 months before Medicare coverage begins. You cannot explore for Medicare directly — you must go through the SSDI process first.

To start SSDI, call Social Security at 1-800-772-1213 or visit your local office. The process asks about your medical condition, work history, and current income. Social Security will request medical records from your doctors and may schedule a consultative exam. The approval process typically takes three to six months, though some cases take longer if Social Security requests additional information.

Once you are approved for SSDI, Medicare enrollment happens automatically 24 months later. You do not need to file a separate Medicare process. Social Security will mail you a Medicare card without any action on your part. If you want to enroll sooner, contact Social Security to discuss your options — some people in the SSDI approval process may be able to enroll earlier under specific circumstances.

explore if You Are Also Enrolling in Medicaid

If you are low-income and turning 65, you may be able to enroll in both Medicare and Medicaid at the same time. Some states let you file one joint process; others require separate applications. Contact your state Medicaid office first to learn their process — they can tell you whether they will handle Medicare paperwork or whether you need to file with Social Security separately.

In states that allow joint applications, the Medicaid office may submit your Medicare enrollment to Social Security on your behalf. This can speed up the process because both agencies communicate directly. In other states, you must file with Social Security for Medicare and with Medicaid separately for Medicaid coverage.

Your state Medicaid office is usually run by the Department of Human Services, Department of Social Services, or Department of Health and Human Services — the name varies by state. You can find your state office by searching "[your state] Medicaid" online or by calling 1-800-MEDICARE and asking for a referral.

What Happens After You explore

Social Security will send you a confirmation letter within one to two weeks of your process. This letter includes a confirmation number and explains what happens next. Keep this letter — you may need the confirmation number if you call Social Security with questions.

Your Medicare card will arrive by mail within two to three weeks of approval. The card shows your Medicare number, which is now your Social Security number followed by a letter (usually A, B, or D). Do not wait for the card to arrive to start using Medicare — your coverage begins on the date Social Security approves, even if the card is still in the mail.

If you do not receive your card within three weeks, call 1-800-MEDICARE to request a replacement. If you need to see a doctor before your card arrives, bring your confirmation letter from Social Security — most providers will accept it as proof of coverage.

Common Mistakes to Avoid

The biggest mistake is waiting until after your 65th birthday to explore. If you miss your Initial Enrollment Period (three months before, during, and three months after the month you turn 65), you may face a permanent penalty on your Part B premium. The penalty is 10 percent for each full year you delayed enrollment, and it stays on your premium for life.

Another common error is not choosing a plan during enrollment. If you do not select Original Medicare or a Medicare Advantage plan, Social Security will not automatically enroll you in anything. You must actively choose a plan. If you are unsure which plan fits your needs, call 1-800-MEDICARE and ask for a plan comparison — Medicare staff can walk you through the options without recommending one.

Do not assume you are automatically enrolled just because you receive Social Security. While retirement and disability beneficiaries are enrolled automatically, you still need to choose whether you want Original Medicare or a Medicare Advantage plan. Social Security will contact you before your enrollment date to ask which plan you prefer.

Frequently Asked Questions

Can I explore for Medicare before I turn 65?

Yes, but only if you have ESRD, ALS, or have been receiving Social Security Disability Insurance for 24 months. Otherwise, you must wait until three months before your 65th birthday to explore. You can contact Social Security three months early to start the process.

What if I am still working at 65 and do not want Medicare yet?

You can delay Medicare enrollment if you are covered by your employer's health plan and your employer has 20 or more employees. You will need to provide proof of employer coverage when you eventually enroll. Without this proof, you may face a permanent penalty. Contact Social Security to discuss your specific situation.

Do I need to bring my Social Security card to explore?

You should bring it, but Social Security can look up your information if you have your birth certificate and proof of citizenship. If you have lost your card, bring a state ID or passport instead. Social Security can verify your identity without the physical card.

How long does Medicare approval usually take?

Most applications are approved within one to two weeks. If Social Security needs additional documents or medical records, approval may take three to four weeks. You can check your process status online through My Social Security or by calling 1-800-772-1213.

What if I applied but never received my Medicare card?

Call 1-800-MEDICARE and provide your confirmation number from Social Security. They can issue a replacement card by mail or, in some cases, provide a temporary number you can use when ready. Your coverage is active even if your card has not arrived.