Medicare Coverage Abroad: What Expats Need to Know

# Medicare Coverage Abroad: What Expats Need to Know

An American retiree hospitalized in Lisbon for a heart attack recently received a bill for €18,000. Her Original Medicare paid exactly $0. This is not a loophole or paperwork error — it is how the program is designed. According to Medicare.gov, "Medicare usually doesn't cover health care while you're traveling outside the U.S." (medicare.gov/coverage/travel). For the estimated 450,000 Americans receiving Social Security benefits while living abroad (SSA Annual Statistical Supplement, 2024), this single sentence upends most retirement plans.

Before you buy into the myth that Medicare "travels with you," understand what the program actually does at the border — and the expensive mistakes expats make at enrollment, deferral, and re-entry.

What "Outside the U.S." Actually Means

For Medicare purposes, the Centers for Medicare & Medicaid Services (CMS) defines the United States as the 50 states, the District of Columbia, Puerto Rico, the U.S. Virgin Islands, Guam, the Northern Mariana Islands, and American Samoa (CMS Medicare Benefit Policy Manual, Chapter 16, §60). Everywhere else — Canada, Mexico, all of Europe, Asia, Central and South America — is foreign territory, and Original Medicare (Parts A and B) will not pay for services rendered there, with three narrow exceptions.

The Three Exceptions

Medicare.gov lists exactly three situations in which Original Medicare will pay for care in a foreign hospital (medicare.gov/coverage/travel):

1. **You are in the U.S. when an emergency occurs, and a foreign hospital is closer than the nearest U.S. hospital that can treat you.**
2. **You are traveling through Canada by the most direct route between Alaska and another U.S. state, and a Canadian hospital is closer than the nearest U.S. hospital.**
3. **You live in the U.S. and a foreign hospital is closer to your home than the nearest U.S. hospital that can treat your condition, regardless of whether it is an emergency.**

None of these help an expat who has actually relocated abroad. If you are living in Portugal, Mexico, or Thailand and walk into a local hospital, Original Medicare will not pay — full stop.

Medigap: The One Genuine Overseas Benefit

Medicare Supplement Insurance (Medigap) plans are the rare exception. According to Medicare.gov, Medigap Plans C, D, F, G, M, and N cover **80% of the billed charges for medically necessary emergency care** received outside the U.S., subject to three limits (medicare.gov/health-drug-plans/medigap/basics/compare-plan-benefits):

• The care must begin during the **first 60 days of your trip abroad**
• You must first pay a **$250 annual deductible**
• There is a **$50,000 lifetime maximum** on foreign emergency benefits

Note the word "trip." CMS interprets this benefit as applying to travel, not permanent residence. A retiree who has domiciled in Panama is not on a "trip," and after 60 days the coverage terminates regardless. Plans F and C have not been available to new enrollees since January 1, 2020, under the Medicare Access and CHIP Reauthorization Act of 2015 (MACRA) — if you became Medicare-eligible on or after that date, your practical options are Plans G, D, M, and N.

Medicare Advantage Abroad: Usually Worthless

Medicare Advantage (Part C) plans are private alternatives to Original Medicare. Some advertise "worldwide emergency coverage," but CMS requires Advantage plans to cover only **emergency and urgently needed services** outside their service area — and those service areas are defined by U.S. county (CMS Medicare Managed Care Manual, Chapter 4, §10.2). Routine care, prescriptions, and follow-up visits outside the U.S. are not covered by any Medicare Advantage plan.

Worse, if you move abroad permanently, you are required to disenroll. CMS rules state that a permanent move outside a plan's service area triggers a **Special Enrollment Period** and you must drop the plan within the period specified in your plan documents, typically the month you move plus two additional months (medicare.gov/basics/get-started-with-medicare/sign-up/when-to-sign-up). Fail to disenroll, and you'll continue paying premiums for a plan that covers nothing where you live.

The Part B Premium Question: Keep Paying or Drop It?

This is where most expats make irreversible financial mistakes. The 2025 standard Part B premium is **$185.00 per month**, or $2,220 per year (medicare.gov/basics/costs/medicare-costs). Over a 20-year retirement abroad, that's $44,400 for coverage you cannot use overseas.

The temptation to drop Part B is strong. The consequence of doing so is severe.

The Late Enrollment Penalty

If you drop Part B and later re-enroll — say, because you moved back to the U.S. or developed a condition requiring American specialists — you pay a permanent **10% premium surcharge for every 12-month period** you were eligible but not enrolled (medicare.gov/basics/costs/medicare-costs/part-b-late-enrollment-penalty). This surcharge is not a one-time fee. It is added to your monthly premium for the rest of your life.

A 65-year-old who drops Part B, lives in Spain for 15 years, and re-enrolls at 80 would pay an extra 150% on top of the then-current standard premium — forever.

Part D (prescription drug coverage) carries its own penalty: **1% of the national base beneficiary premium ($36.78 in 2025) for every month you went without creditable coverage** (medicare.gov/drug-coverage-part-d/costs-for-medicare-drug-coverage/part-d-late-enrollment-penalty).

The Narrow Escape Hatches

There are only two clean ways to avoid the Part B penalty:

1. **Qualifying group health coverage from active employment** — yours or a spouse's — in the U.S. qualifies you for a Special Enrollment Period when that coverage ends (medicare.gov/basics/get-started-with-medicare/sign-up/when-to-sign-up). Foreign employer coverage generally does **not** qualify.

1. **Volunteer service with a tax-exempt organization** in a foreign country, as specified in 42 CFR §406.27 and §407.23, can qualify you for a Special Enrollment Period on return.

National health systems in places like France, Portugal, or Costa Rica — even if excellent — do **not** count as creditable coverage for Medicare enrollment purposes.

Delaying Medicare Enrollment Entirely

If you are not yet drawing Social Security when you turn 65, you must actively enroll in Medicare. Those already collecting Social Security are enrolled automatically in Parts A and B (ssa.gov/medicare/sign-up).

Part A is premium-free for most people with at least 40 quarters of Medicare-taxed work (medicare.gov/basics/costs/medicare-costs). There is almost no reason to delay Part A — it costs you nothing and provides hospital coverage if you return to the U.S.

Part B is the decision point. CMS guidance and the Social Security Administration recommend enrolling during your **Initial Enrollment Period** — the seven months surrounding your 65th birthday — to avoid penalties. If you miss it, the **General Enrollment Period** runs January 1 through March 31 each year, with coverage starting the month after enrollment (medicare.gov/basics/get-started-with-medicare/sign-up/when-to-sign-up).

How Expats Actually Get Healthcare Abroad

Since Medicare does almost nothing overseas, expats rely on three real mechanisms:

1. Host-Country National Health Systems

Countries including Portugal, Spain, France, Italy, Costa Rica, Mexico, Uruguay, and Thailand permit legal residents to enroll in public healthcare. Requirements vary — Portugal's SNS requires a residency certificate; Costa Rica's Caja requires a mandatory monthly contribution of roughly 7–11% of declared income (Caja Costarricense de Seguro Social, 2024 rate schedule). These systems typically cost a fraction of U.S. insurance and cover routine care that Medicare never would overseas.

2. International Private Medical Insurance (IPMI)

Insurers such as Cigna Global, GeoBlue, IMG, and Allianz Care sell policies designed for expats. Unlike travel insurance, IPMI covers routine care, chronic conditions, and long-term residents. A healthy 65-year-old can expect premiums of roughly $4,000–$10,000 per year depending on deductible, geographic coverage, and whether U.S. coverage is included.

3. Paying Cash

In much of Latin America and Southeast Asia, paying out of pocket for good private care is genuinely affordable — a specialist visit in Mexico City runs $40–$80, and a hospital day in Chiang Mai averages under $300. This is not a strategy for catastrophic care, but it works for day-to-day needs.

Practical Action Items

1. **Enroll in Part A at 65 regardless of where you live.** It's free, it protects you if you return to the U.S., and there is no penalty for using it later.

1. **Run the Part B math before dropping it.** Calculate the lifetime penalty based on your expected return age. If there is any chance you'll come back to the U.S. — for family, healthcare, or end-of-life care — keeping Part B is usually cheaper than the penalty.

1. **If you keep Part B, consider a Medigap Plan G.** The 80% foreign emergency benefit (first 60 days, $250 deductible, $50,000 lifetime cap) is the only meaningful Original Medicare-adjacent benefit abroad.

1. **Do not rely on Medicare Advantage overseas.** If you have one, verify the disenrollment window triggered by your move.

1. **Enroll in your host country's system or buy IPMI before you need it.** Pre-existing condition exclusions in IPMI are strict, and national systems often have waiting periods for new residents.

1. **Keep a U.S. mailing address for Social Security and Medicare correspondence.** SSA requires this for benefit processing, and some Medigap insurers will not issue policies to addresses outside the U.S.

1. **Check ssa.gov/foreign/foreign.htm for country-specific Social Security rules.** Your benefits may be affected if you live in Cuba, North Korea, or certain other restricted countries.

Conclusion: Plan Before You Pack

Medicare was designed in 1965 for Americans who retire in America. Six decades later, the overseas benefit gap remains exactly what it was: a near-total void outside the 50 states and U.S. territories. The expats who thrive abroad are the ones who made three decisions before boarding the plane — whether to keep Part B, how to secure local or international coverage, and what the return plan looks like if health problems require U.S. care.

Your next steps: pull up your Medicare enrollment record at medicare.gov/account, confirm your Part A and Part B status, calculate the dollar value of the late enrollment penalty for your expected scenario, and price at least one host-country option and one IPMI quote. The decisions compound for life — get them right before you move, not after.

Sources

• Medicare.gov, "Travel": https://www.medicare.gov/coverage/travel
• Medicare.gov, "Compare Medigap plan benefits": https://www.medicare.gov/health-drug-plans/medigap/basics/compare-plan-benefits
• Medicare.gov, "Part B late enrollment penalty": https://www.medicare.gov/basics/costs/medicare-costs/part-b-late-enrollment-penalty
• Medicare.gov, "Part D late enrollment penalty": https://www.medicare.gov/drug-coverage-part-d/costs-for-medicare-drug-coverage/part-d-late-enrollment-penalty
• Medicare.gov, "Medicare costs": https://www.medicare.gov/basics/costs/medicare-costs
• Medicare.gov, "When to sign up": https://www.medicare.gov/basics/get-started-with-medicare/sign-up/when-to-sign-up
• CMS Medicare Benefit Policy Manual, Chapter 16: https://www.cms.gov/Regulations-and-Guidance/Guidance/Manuals/Internet-Only-Manuals-IOMs-Items/CMS012673
• CMS Medicare Managed Care Manual, Chapter 4: https://www.cms.gov/Regulations-and-Guidance/Guidance/Manuals/Internet-Only-Manuals-IOMs-Items/CMS019326
• SSA, "Payments Abroad Screening Tool": https://www.ssa.gov/foreign/foreign.htm
• 42 CFR §407.23, Special enrollment periods: https://www.ecfr.gov/current/title-42/chapter-IV/subchapter-B/part-407