Medicare coverage stops at the U.S. border in most cases

Original Medicare (Parts A and B) does not cover medical care you receive outside the United States, except in very narrow circumstances. If you travel abroad and need a doctor, hospital, or prescription filled, you will pay the full cost out of your own pocket. Medicare will not reimburse you later.

The only times Original Medicare pays for care outside the U.S. are: when you are in transit between two U.S. locations and need emergency care in Canada or Mexico, or when you are on a ship within six hours of a U.S. port and need emergency hospital care. These exceptions are rare and require specific conditions to be met.

Medicare Advantage plans (Part C) vary in their coverage. Some offer limited emergency coverage abroad; others offer none. You must check your specific plan's coverage document before you travel, because the rules differ from plan to plan and change year to year.

Key Takeaways

  • Original Medicare does not cover routine or emergency medical care outside the United States, with only two narrow exceptions for transit and ships.
  • Medicare Advantage plans may offer some emergency coverage abroad, but coverage varies widely and you must check your plan documents before traveling.
  • If you travel internationally, you will need separate travel insurance that covers medical care, because Medicare will not pay.
  • Prescription medications filled outside the U.S. are not covered by any Medicare plan, and some medications available abroad are not legal to bring back into the country.
  • Retirees who spend months abroad each year should research permanent relocation options or long-term travel insurance rather than relying on Medicare.

When Original Medicare will not pay for care abroad

If you are in Mexico or Canada and need emergency hospital care, Original Medicare will pay only if you were in the U.S. when the emergency began and were traveling directly to another U.S. location. The emergency must be sudden and serious enough that waiting until you returned to the U.S. would be dangerous. You must also be able to prove you were in transit — not on vacation or living abroad.

The hospital must be the closest one to where the emergency happened. Medicare will pay the hospital charges only, not doctor fees, ambulance transport, or other services. You will receive a bill from the hospital, and you can submit it to Medicare with proof of the emergency and your travel itinerary. Processing takes several weeks.

In practice, this exception covers almost no one. A person who becomes ill while visiting family in Mexico for two weeks, or who has a heart attack while on a cruise ship docked in Cozumel, will not meet these conditions. The rule is written for someone whose car breaks down on the highway between Arizona and California and who ends up in a Mexican emergency room by accident.

Medicare Advantage coverage abroad varies by plan

Some Medicare Advantage plans offer emergency coverage when you travel outside the U.S. for up to 30 or 60 days per year. Others offer none. A few plans that market themselves to snowbirds or frequent travelers offer broader coverage, including urgent care and some routine services, but these are uncommon and usually cost more in monthly premiums.

Your plan's coverage document — called the Evidence of Coverage or EOC — lists what happens when you need care abroad. You can find this on your plan's website or call the plan's customer service number on the back of your insurance card. Ask specifically: "Does my plan cover emergency care outside the United States?" and "What countries are covered?" Some plans exclude certain regions.

Even if your plan covers emergency care abroad, you will likely pay the full bill upfront and submit it for reimbursement later. You will not have a network of in-network doctors abroad the way you do in the U.S. Keep all receipts and itemized bills, because Medicare Advantage plans often require detailed documentation before they will reimburse.

What you need to know about prescriptions outside the U.S.

Medicare does not cover prescriptions filled at pharmacies outside the United States. If you run out of medication while traveling, you will pay the pharmacy's full price. Some medications are cheaper abroad than in the U.S., but others are more expensive, and prices vary widely by country and pharmacy.

Bringing medications back into the U.S. is legal only under specific rules. You can bring a 90-day supply of most prescription medications for personal use, but the medication must be in its original labeled container with your name on it. Some controlled substances (like certain painkillers or anxiety medications) have stricter limits. Medications that are not approved by the FDA, or that are illegal in the U.S., cannot be brought back at all, even if they are legal where you bought them.

Before you travel, ask your doctor for a written prescription you can carry with you. Some countries require a local doctor's prescription even if you have one from the U.S. If you take multiple medications, bring a list with the generic names, because brand names differ by country.

Travel insurance is your real protection abroad

If you travel outside the U.S. for more than a few days, you should purchase travel insurance that covers medical care. This is separate from Medicare and separate from any Medicare Advantage plan you have. Travel insurance is inexpensive — usually $5 to $15 per day — and covers emergency hospital care, doctor visits, and sometimes evacuation back to the U.S. if you need serious treatment.

Travel insurance policies have limits. Most cover up to $100,000 in medical expenses, which is enough for most emergencies but not for serious surgery or long-term hospitalization. Some policies exclude pre-existing conditions, so read the fine print before you buy. Others require you to purchase within a certain number of days of booking your trip.

You can buy travel insurance from travel agencies, insurance brokers, or directly from insurers. Compare at least three quotes, because prices and coverage vary. Make sure the policy covers the countries you plan to visit — some exclude certain regions — and that it covers the activities you plan to do (some exclude adventure sports or high-altitude travel).

Planning for long-term travel or relocation

If you spend several months abroad each year, or if you are considering moving to another country in retirement, Medicare coverage becomes a serious planning issue. You cannot straightforward keep Medicare and travel indefinitely, because Medicare requires you to be a U.S. resident and to spend most of your time in the U.S.

If you move permanently to another country, you must notify Social Security and Medicare. Your Medicare coverage will end, and you will need to arrange health insurance in your new country. Some countries have reciprocal agreements with the U.S. that allow retirees to use their home country's system; others do not. Research the healthcare system in your destination country before you move.

If you are a U.S. citizen living abroad temporarily, you may be able to keep Medicare and purchase supplemental travel insurance for the months you are away. This is more expensive than a short-term travel policy but gives you continuous coverage. Talk to a Medicare counselor at your State Health Insurance information Program (SHIP) before you make the move, because the rules depend on your citizenship status and how long you plan to be away.

Frequently Asked Questions

Will Medicare pay if I need emergency care while on a cruise ship?

Only if the ship is within six hours of a U.S. port and you are admitted to a hospital. If the ship is docked in a foreign country or farther than six hours from U.S. waters, Medicare will not pay. Cruise lines often include basic medical care in the ship's clinic, but that is not covered by Medicare either. Purchase travel insurance before you cruise.

Can I use my Medicare card at a hospital in Canada?

No. Your Medicare card is not recognized outside the U.S., and hospitals abroad will not accept it as proof of insurance. You will be asked to pay upfront or provide a credit card. Keep all receipts if you think Medicare might reimburse you, but do not expect it unless you meet the narrow transit exception.

What if I am a U.S. citizen living in Mexico or Canada?

If you move to another country, you must notify Medicare and Social Security. Your Medicare coverage will end. You will need to arrange health insurance in your new country. If you plan to return to the U.S. later, you may be able to re-enroll in Medicare when you come back, but there are penalties for gaps in coverage.

Does travel insurance cover pre-existing conditions?

Some policies do, but most exclude them unless you purchase the insurance within 14 days of your first trip deposit. If you have a chronic condition like diabetes or heart disease, look for a policy that specifically covers pre-existing conditions, or purchase within the required window. Expect to pay more for this coverage.

Can I bring medications I bought abroad back into the U.S.?

You can bring a 90-day supply of most prescription medications in their original labeled container. Controlled substances have stricter limits. Medications not approved by the FDA or illegal in the U.S. cannot be brought back. Check with U.S. Customs and Border Protection or your doctor before you travel if you are unsure about a specific medication.