For Members & Caregivers

Managing Coverage for Someone Else

When you help manage health insurance for someone you care about, you need to understand what authority you have. You also need to know how to talk to insurance plans and Medicare, and where to find support.

Getting the Right Authority to Act

If you're helping someone manage their health coverage, you likely need documented authority. But there isn't just one kind. Each type serves a different purpose. None of them gives you all the powers you might assume. Here's what each one does and doesn't let you do:

Tool What It Lets You Do How to Set It Up
Plan's Authorized Representative Form You can call the health plan. You can ask questions about their coverage, claims, and appeals. You can usually receive notices and submit appeals for them. Contact the insurance plan directly. Each plan has its own form. Ask for it by phone or download it from their website. The person needs to sign it or give verbal permission.
Medicare Authorization to Disclose (1-800-MEDICARE) You can call Medicare to talk about their account. You can ask questions about their benefits. You can get account information sent to you. Call 1-800-MEDICARE or work with a Medicare insurance agent. They sign a form to let Medicare share information with you.
Power of Attorney (POA) You can handle their financial and legal decisions. You can pay medical bills, manage savings, and sign documents. What you can do depends on what the legal document says (general or limited POA). Prepare with a qualified attorney. Cost and requirements vary by state (typically $300–800). The person needs to sign it and, in some states, get it notarized.
Social Security Representative Payee You can receive and manage their Social Security benefits. You collect checks and pay bills if they can't do it themselves. Apply through the Social Security Administration (SSA). You need to prove they cannot manage benefits themselves. See SSA.gov or call 1-800-772-1213.
Healthcare Power of Attorney / Healthcare Proxy You can make medical decisions for them if they can't. You can choose treatments, hospitals, and end-of-life care. This does NOT let you manage insurance paperwork or handle benefits. Prepare with an attorney or use a state-specific form (often free from your state health department). They need to sign it and, in some states, get it notarized.

The key insight: A power of attorney doesn't automatically give you power with Medicare or a health plan. A healthcare proxy doesn't manage insurance. You may need more than one document, depending on what you need to do.

Talking to Medicare and Plans on Someone's Behalf

Here's why plans and Medicare won't just give you information: HIPAA (a federal privacy law) prevents them from sharing health or benefit information with anyone — even family members — without written or verbal permission from that person. It's frustrating when you're trying to help, but it protects their privacy.

How to get permission:

Organizing the Essentials

The faster you organize information, the faster you can help. Keep these documents and details in one place:

Caregiver's essentials checklist:
  • Insurance cards (front and back, both Medicare and any private plan or Medicaid card)
  • Plan name, member ID, and Group number (often on the card)
  • Phone numbers: the plan, Medicare, the primary care doctor, pharmacy
  • List of all current doctors and specialists, with contact info and specialties
  • List of all medications (names, doses, pharmacy)
  • Recent prescription and medical bills (for appeals or claims questions)
  • Dates of key deadlines: Open Enrollment, appeal deadlines, denial letters
  • A copy of any Authorized Representative forms or POA documents you've filed
  • Account logins for pharmacy or plan portals (stored securely, NOT on a sticky note)

Helping with Enrollment and Appeals

Two key moments when caregivers step in: choosing a plan and challenging a denial.

Managing Dual-Eligible Coverage

Some people qualify for both Medicare and Medicaid. This is called "dual-eligible." It's common among people with very low income or high long-term care needs.

Support for the Caregiver

Being a caregiver is a job. You don't have to do it alone. The Eldercare Locator is a free national service that connects you with local support:

Long-Term Care: What Medicare and Medicaid Actually Cover

If the person needs nursing home, assisted living, or home care, you need to know what Medicare and Medicaid cover:

Common Questions

Can I call Medicare or the health plan about my mom's coverage without her permission?

No. HIPAA privacy law prevents plans and Medicare from sharing health or benefit information with anyone without permission. Your mom needs to either call first and give you permission, or sign an Authorized Representative form that you send in. After that, you can call on her behalf.

Does a power of attorney let me choose my spouse's health plan?

A general power of attorney may give you authority to make healthcare decisions, but it depends on what the document says. A healthcare power of attorney or healthcare proxy is specifically designed for medical decisions. But even with POA, you need to get the plan to authorize you separately (using the plan's Authorized Representative form). POA and plan authorization are two different things.

What happens to their coverage if they move or need to enter a nursing home?

It depends on where they move. If they move to a different state, their Medicaid may change (each state runs its own program). If they move within the state, their Medicare generally stays the same. But their Medicaid may change. If they enter a nursing home, Medicare stays the same. But they may qualify for Medicaid even if they didn't before (nursing-home Medicaid has different asset rules in many states). Talk to the nursing home's social worker and your state Medicaid office before a move.

Verify before you act. This page explains general concepts about authority and caregiver responsibilities. Legal documents like power of attorney need qualified legal help in your state. Health plan and Medicare rules have exceptions and details not covered here. Always verify coverage, deadlines, and procedures with the plan, Medicare, or your state Medicaid office. MediPrimer is not affiliated with CMS, Medicare, Medicaid, any state agency, or any health insurance company. Nothing here is legal, medical, or financial advice.