Home › Knowledge › Medicare Enrollment
Vedanth Bhartee
Writer · Reviewed by Richard ChanUpdated Jun 12, 2026
6 min read
Although Medicare is managed by the Centers for Medicare & Medicaid Services (CMS), enrollment in Original Medicare is processed through the Social Security Administration (SSA).
Beneficiaries can apply for Medicare Parts A and B online through the SSA website, by calling the SSA directly, or by visiting a local Social Security office.
The Social Security Administration does not handle enrollment for private Medicare plans, such as Medicare Advantage, Medicare Supplement (Medigap), or Part D prescription drug plans.
Medicare is a lifeline for millions, serving as the primary federal health insurance program for individuals aged 65 and older. It also provides critical coverage for younger individuals navigating specific disabilities, such as permanent kidney failure or Lou Gehrig’s disease.
The Social Security Administration (SSA) is the gatekeeper for enrollment in Original Medicare. This foundational coverage is split into two critical pieces: Part A (Hospital Insurance) and Part B (Medical Insurance).
Think of Medicare Part A as your safety net for the heavy lifting—it helps cover inpatient hospital stays, skilled nursing facility care, hospice care, and some home health services. Part B, on the other hand, handles your day-to-day medical needs, covering doctor visits, outpatient care, medical supplies, and vital preventive services.
As that 65th birthday approaches, many Medicare-eligible adults find themselves asking: How exactly do I enroll? Do I have to go to a Social Security office, or can I just do it online?
While some seniors value the speed and convenience of online enrollment, others strongly prefer sitting down with a human being to thoroughly review their options before applying. If you’re asking yourself, “Is there a Social Security office near me?” this guide is built to help you navigate your next steps.
If you’re eligible, you have options. You can apply for Original Medicare (Part A and Part B) online, over the phone, or in person at your local Social Security Administration office. While applying online is generally the fastest route, the choice is yours. Once you’ve secured Original Medicare, you can seamlessly enroll in additional, supplemental coverage online.
Timing is everything here. Enrolling on time is crucial to avoiding coverage gaps or stinging late enrollment penalties. Your Initial Enrollment Period (IEP) is a seven-month window that starts three months before your 65th birthday month, includes your birth month, and lasts for three months afterward.
If you miss your IEP, don’t panic. You can still sign up during the Medicare General Enrollment Period (GEP), which runs every year from January 1 through March 31.
The SSA operates local offices where you can sit down with a representative to get hands-on assistance with your Medicare enrollment. Two of the most common questions we hear are: “Are Social Security offices open for walk-ins?” and “When will Social Security offices open for walk-ins?”
While many SSA branches closed their doors to the public during the pandemic, the vast majority are now fully reopened for both appointments and walk-ins. It is highly recommended to check the SSA website for specific office locations and updated hours before making the trip.
If you’re hunting for “Social Security offices near me,” the SSA office locator tool is your best friend. Just plug in your zip code to instantly find the closest branch, complete with its address, phone number, fax details, and hours of operation. The tool even offers maps and driving directions to make your visit as smooth as possible.
If driving to an office isn't feasible, you can easily reach SSA customer service online or by phone at 1-800-772-1213.
Life happens, so if you need to step away from the computer, you can easily save your progress and return to the application later. Once submitted, you’ll receive a unique application number, allowing you to track your enrollment status in real time. You can apply for both Part A and Part B directly through the SSA website.
Here’s some good news: if you are already drawing Social Security benefits, you do not need to lift a finger to sign up for Medicare. The SSA will automatically enroll you in Original Medicare (Part A and Part B) as you approach age 65. You can expect to receive a welcome package with your Medicare card in the mail a few months before your 65th birthday.
While Part A is totally premium-free for most people, Part B does carry a monthly premium. If you are still working and have robust health coverage through an employer, you have the right to delay your Part B enrollment to save money.
However, tread carefully. If you choose to enroll in Part B later without having had qualifying "creditable" coverage, your Medicare coverage could be delayed, and you may be slapped with a late enrollment penalty that lasts for as long as you have Part B.
For convenience, Social Security beneficiaries typically have their Medicare Part B premiums automatically deducted right from their monthly Social Security checks. This seamless integration ensures your premiums are always paid on time without you having to remember to write a check.
Many seniors also decide to enhance their coverage by purchasing a Medicare Part C (or Medicare Advantage) plan, which bundles in highly desired extras like dental, vision, and hearing care. While these private plans often have their own costs, you can frequently manage those expenses using your monthly Social Security income.
If you decide to hold off on claiming Social Security until after age 65, you will need to proactively contact the SSA to apply for Medicare when the time comes. This coordination between Social Security and Medicare is an essential puzzle piece in securing your healthcare future.
For those under 65 who are already receiving Social Security disability benefits, Medicare eligibility kicks in automatically after 24 months of disability status. This safety net ensures that younger Americans battling chronic, severe health issues receive both the financial lifeline and the medical coverage they desperately need.
It’s also important to remember that if you’ve worked and paid Medicare taxes for at least 10 years (or 40 quarters), you’ve earned premium-free Medicare Part A. This is the direct reward for your years of hard work and financial contributions to the system.
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No. You cannot apply for Medicaid at an SSA office or through their federal website. Medicaid is a separate assistance program managed at the state level. To see if you qualify or to submit an application, you must contact your specific state’s Medicaid agency or apply through the Health Insurance Marketplace.
While you should always verify with your local branch, standard operating hours for Social Security offices are typically:
Please note that these hours often reflect national phone line availability or specific online services and can vary wildly by physical location. To find the exact walk-in hours for the office nearest you, use the SSA office locator tool.