You can help a parent sign up for Medicare online through Social Security's "apply for someone else" option, by phone, or at a local office. Your parent must sign the application. To talk with Medicare about their coverage later, your parent needs to give Medicare permission, either verbally on the call or by naming you on an authorization form or in their Medicare.gov account. Here is the order to do things in, what to have ready and where adult children most often get stuck.
Can I sign my parent up for Medicare?
You can do most of the work, but your parent has to sign. Social Security welcomes people who help someone else apply, including relatives, and you don't need to be formally appointed as their representative just to help. When you fill out the online application, answer the questions as your parent would answer them. If your parent is with you, they sign it electronically. If they aren't, Social Security mails it to them to verify and sign.
If your parent wants you to act for them with Social Security on an ongoing basis, they can formally appoint you as their representative using Social Security's appointment of representative form. That is a separate step from simply helping with the application.
When should my parent sign up?
Timing depends on whether your parent already gets Social Security:
- Already getting Social Security benefits: they are usually enrolled in Part A and Part B automatically and get their Medicare card in the mail before their 65th birthday.
- Not yet getting benefits: they need to sign up during their 7-month Initial Enrollment Period, which starts 3 months before the month they turn 65 and ends 3 months after it.
- Still working with employer coverage, or covered by a working spouse's plan: they may be able to delay Part B without a penalty. Our page on Medicare at 65 while still working explains the rule.
Missing the window can mean a gap in coverage and a lifelong Part B penalty of 10% for each full 12-month period they could have had Part B but didn't. See our guide to the Medicare late enrollment penalty.
What information do we need to apply?
Social Security's Medicare sign-up page lists what to have ready. Use this checklist before you sit down together:
- Your parent's Social Security number.
- Where they were born: city, state and country.
- Start and end dates of any current group health plan, and any group health plan after age 65.
- A valid email address.
- Their existing Medicare number, if they already have Part A.
- Proof of citizenship or lawful status if Social Security asks for it.
- A list of their doctors and prescriptions, which you will need right after enrollment to choose coverage.
How do I get permission to talk to Medicare for my parent?
Medicare can only share your parent's personal health information with you if your parent gives verbal permission while you are on the phone with Medicare together, or if they have named you as an authorized representative. Medicare's fact sheet on talking with a friend's or family member's doctor explains the two ways to set up the Authorization to Disclose Personal Health Information:
- Online: complete it in your parent's Medicare.gov account. Once it is submitted, you can call and speak on their behalf right away.
- On paper: download, print, fill out and mail the form. This generally takes a few weeks to process before you can call on their behalf.
Your parent can also call 1-800-MEDICARE and ask for help filling out the form. If you will be making calls often, the online route saves time.
While you are in the account, help your parent set up secure sign-in. Medicare.gov now offers ID.me, CLEAR and Login.gov to verify identity, which our page on logging in to Medicare.gov explains. A working account lets your parent, or you with their permission, see claims, print a replacement card and check which plan they are enrolled in without waiting on hold. Keep the login details somewhere safe that your parent can also reach, and never share their Medicare number with anyone who calls offering a new card or a free gift.
What coverage decisions come after enrollment?
Signing up for Part A and Part B is only the first step. Your parent then chooses how to get the rest of their coverage:
| Path | What it includes | Good fit when |
|---|---|---|
| Original Medicare plus a Medicare Supplement and Part D | Any doctor that takes Medicare, predictable out-of-pocket costs, separate drug plan | They see specialists, travel or want the widest doctor choice |
| Medicare Advantage | Part A, Part B and usually drug coverage in one plan with a network | Their doctors are in the plan's network and they want extras like dental or vision |
| Original Medicare plus Part D only | Medicare coverage and a drug plan, with no help on the 20% coinsurance | They have other coverage that pays after Medicare, such as Medicaid or retiree coverage |
The Medigap Open Enrollment Period starts when your parent is 65 and enrolled in Part B and lasts 6 months. During that time insurers can't turn them down for health reasons, which is why the decision deserves attention early.
Can my parent get help paying for Medicare?
If your parent has limited income and savings, look at Extra Help with drug costs and their state's Medicare Savings Programs. Family members can help complete the Extra Help application, answering as if your parent were filling it out. In North Carolina, South Carolina and Tennessee, Medicare Savings Programs run through NC Medicaid, Healthy Connections Medicaid and TennCare. Our state pages on help paying for Medicare in North Carolina, South Carolina and Tennessee walk through each program.
How The Jordan Insurance Agency can help
Many of the people we help are sons and daughters doing this for a parent, sometimes from another city. We'll explain the enrollment steps, help you and your parent compare Medicare Supplement, Medicare Advantage and Part D options against their doctors and prescriptions, and make sure deadlines aren't missed. We can meet with both of you together, in person or by video. Schedule Your Consultation to review your options.
Reviewed by Billy Jordan Jr., licensed insurance agent · Licensing & Credentials · Last reviewed November 12, 2026 · Sources are linked in the answer above.
Licensing: Billy Jordan Jr. is licensed in 23 states, including North Carolina, South Carolina and Tennessee. See Licensing & Credentials.
Office: North Carolina and South Carolina clients are served by the Charlotte office, 3540 Toringdon Way, Suite 200, Charlotte, NC 28277, (704) 926-7565. Tennessee clients are served by the Nashville office, 159 4th Ave N, Suite 100, Nashville, TN 37219, (615) 558-6082.
Medicare disclaimer: We do not offer every plan available in your area. Currently we represent 8 organizations which offer 91 products in North Carolina, 7 organizations which offer 70 products in South Carolina, and 7 organizations which offer 65 products in Tennessee. Please contact Medicare.gov or 1-800-MEDICARE to get information on all of your options. Read the full Medicare disclaimer.
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