Does Medicare cover you in Mexico?

Who this page is for: Americans on U.S. Medicare. Every figure and rule below comes from Medicare and CMS, and all amounts are in US dollars.

If you are Canadian, this is the wrong page and following it would mislead you. Canada has no national equivalent of Medicare — coverage is provincial (OHIP, MSP, AHCIP, RAMQ), your plan does pay a small capped amount abroad where Medicare pays nothing, and what ends your coverage is a residency-absence clock rather than a coverage exclusion. Nothing on this page transfers. Your page is Does your provincial health plan cover you in Mexico?

If you are planning a move to Mexico and you have Medicare, this is usually the first question that matters, and it is worth answering before you start comparing towns. The short version is in the box above. The longer version is more useful, because the way Medicare says no is what determines the decisions you have to make next.

What Medicare actually says

Medicare's own wording is that it "usually doesn't cover health care while you're traveling outside the U.S. but there are some exceptions" [2]. The page then defines what "outside the U.S." means, and the definition leaves no room for a border-region reading:

The 50 states, the District of Columbia, Puerto Rico, the U.S. Virgin Islands, Guam, the Northern Mariana Islands, and American Samoa are considered part of the U.S. Anywhere else is considered outside the U.S.

Mexico is therefore outside the United States for every purpose on that page. On cost, Medicare is equally direct: "You pay all of the costs, in most cases" [2].

The three exceptions, and why none is yours

Medicare lists three situations in which it may pay a foreign hospital [2]. They get quoted a lot, usually without the first few words of each one. Here they are in full:

• You're in the U.S. when a medical emergency occurs, and the foreign hospital is closer than the nearest U.S. hospital that can treat your medical condition.
• You're traveling through Canada without unreasonable delay by the most direct route between Alaska and another U.S. state when a medical emergency occurs, and the Canadian hospital is closer than the nearest U.S. hospital that can treat the emergency.
• You live in the U.S. and the foreign hospital is closer to your home than the nearest U.S. hospital that can treat your medical condition, regardless of whether an emergency exists.

Read them as a set and the pattern is unmistakable: each one is anchored to being physically in the United States, or residing in the United States. The third is the one people misread, because it drops the emergency requirement and sounds like it might cover someone who simply lives closer to a Mexican hospital. It does not. It is a border-proximity rule for people who live in the United States — someone in Laredo whose nearest capable hospital happens to be across the river. Once your home is in Mexico, that exception describes someone else.

So the accurate answer is sharper than "Medicare doesn't work in Mexico." The exceptions are real. They are just not yours.

Prescriptions bought in Mexico

There is no ambiguity here. Medicare's publication states that "Medicare plans can't cover drugs you buy outside the U.S." [1] Part D covers certain vaccines, including some travel vaccines [2], but that is coverage you use in the United States before you travel — not coverage for a pharmacy in Mérida.

Your Medigap plan and the 60-day trap

The Medigap foreign travel benefit is where good-faith advice goes wrong. Most Medigap plans do include a foreign travel emergency benefit, and CMS names them: plans C, D, E, F, G, H, I, J, M and N. If you bought plan E, H, I or J before June 1, 2010, you may keep it and it still covers foreign travel emergency care [1].

But read the terms rather than the headline. The benefit has a USD $50,000 lifetime limit, it may pay 80% of billed charges after a USD $250 deductible for the year, and it applies to care that "begins during the first 60 days of your trip" [1]. Source: Centers for Medicare & Medicaid Services, checked 2026-10-23

Those are three different clocks, and the third is the one that decides this question. A person who has moved to Mexico is not on a trip. Even for someone who genuinely is traveling, the benefit stops answering after 60 days. "Keep your Medigap, it covers you abroad" is not a plan for everyday care in the country where you now live.

Should you keep paying for Part B?

Part A is premium-free if you qualify for it [5]. Part B is not: the standard premium is USD $202.90 a month in 2026 [4]. And by everything above, Part B buys you almost nothing where you are about to live. So the question presents itself as an obvious saving — stop paying for coverage you cannot use, and sign back up if you ever move home. Source: Medicare.gov, checked 2026-10-23

That reasoning is the single most expensive mistake available on this topic, and it is worth understanding exactly why.

If you drop Part B and later want it back, you generally pay a late-enrollment penalty: "an extra 10% for each year you could have signed up for Part B, but didn't." Medicare is explicit that these penalties "are not a one-time late fee" and "are usually charged for as long as you have that type of coverage (for most people, that's a lifetime penalty)." Medicare's own worked example for a two-year delay: a USD $202.90 premium plus a USD $40.58 penalty becomes a USD $243.50 monthly premium [4]. Source: Medicare.gov, checked 2026-10-23

The obvious escape is a Special Enrollment Period, which lets people sign up later without a penalty. Here is the part that catches people: a Special Enrollment Period of that kind requires coverage based on current employment — yours or your spouse's, through an employer or union group health plan [5]. CMS's own letter to people living outside the United States says the rest plainly: "If you have COBRA coverage, VA coverage or a retiree health plan, you don't have coverage based on current employment. You're not eligible for a Special Enrollment Period when that coverage ends" [6]. Medicare's current sign-up page lists the same exclusions, including "Your COBRA coverage or retiree coverage ends" [5].

Without a Special Enrollment Period, the route back in is the General Enrollment Period, January 1 to March 31 each year, with coverage starting the month after you sign up [5]. That is a wait as well as a penalty.

Part D works the same way and deserves the same thought. Its late-enrollment penalty is 1% per month — 12% a year — against a national base premium of USD $38.99 in 2026, also for as long as you keep the coverage [4]. Since Part D buys nothing in Mexico either, it is the same decision with the same trap. Source: Medicare.gov, checked 2026-10-23

One more thing CMS states directly, because people ask: living outside the United States makes you ineligible to use the Marketplace to enroll in health coverage [6]. It is not a fallback.

Dialysis

Dialysis abroad gets one question in CMS's guide, and for a reader on dialysis it is the question that matters. CMS asks and answers it directly: does Medicare pay for dialysis outside the United States? "No. Unless you get dialysis during an inpatient hospital stay under one of the 3 situations described on page 1, Medicare doesn't cover dialysis when you travel outside the U.S." [1]

If you are on dialysis, this belongs in the plan before the move, not after it.

Medicare Advantage is the one place the answer varies

If you have a Medicare Advantage plan, it must follow Medicare's rules, including for coverage outside the United States — so it can never offer less than Original Medicare does here. But CMS also says a plan "may cover additional health care services you get outside the U.S." [1]

That makes Medicare Advantage the one honest "check your own plan" on this page. There is no general answer we can give you, and any article that gives you one about your specific plan is guessing.

Is there a US–Mexico agreement that changes this?

There is one, it is real, and it gives the clearest answer on this page — because it excludes Medicare in its own text.

The United States and Mexico signed a social security agreement of the kind called a "totalization" agreement at Guadalajara on June 29, 2004. The Social Security Administration's own note on it says the agreement "must be submitted to the U.S. Congress and the Mexican Senate for review before it may enter into force" [10], and Mexico does not appear in SSA's published list of agreements in force [11]. So whether it is operative is not something we can tell you.

That turns out not to matter, which is the genuinely useful part. Article 2 of the agreement sets out what it applies to on the United States side — the laws governing old-age, survivors and disability insurance, specifically "Title II of the Social Security Act … except sections 226, 226A and 228 of that title" [10].

Those exclusions are the whole answer. Section 226 of the Social Security Act is titled "Entitlement to hospital insurance benefits" [8] — that is Medicare Part A. Section 226A is the End Stage Renal Disease program [9]. The agreement carves out the two provisions that grant Medicare entitlement in the first place. Even if it took effect tomorrow, Medicare is specifically what it says it does not reach.

It closes the door in the other direction too, which matters if you were hoping a long U.S. work history might count toward Mexican coverage instead. Article 6 is explicit: "For the purposes of determining entitlement to medical insurance for pensioners and their beneficiaries, only periods of contribution completed under Mexican applicable laws shall be credited" [10].

The general rule behind all of this points the same way. The U.S. law that authorizes these agreements describes their purpose as establishing entitlement to "old-age, survivors, disability, or derivative benefits" — cash benefits [7] — and the GAO describes their two functions as eliminating dual social security taxes and filling gaps in benefit protection for people who have worked in more than one country [12]. Neither one is health coverage.

A totalization agreement is a pension instrument. It does not make Medicare pay a hospital in Mexico, and it would not buy you into IMSS either.

What this page does not answer

What does cover you in Mexico is not answered on this Medicare page. IMSS enrollment as a legal resident, private Mexican insurance, and international policies are a separate question with a separate set of numbers, and folding them in here would make both answers vague. That is a separate question, and this page is not the place we answer it.

What this page is for is narrower and more urgent: knowing that Medicare is not the answer, before you make a decision about Part B that you cannot undo on your own terms.