Does Medicare cover you when you live in Costa Rica?

Plan ordinary Costa Rican care separately

Medicare’s overseas-coverage booklet describes limited exceptions to its usual exclusion of care outside the United States. Those exceptions do not provide a general healthcare plan for someone living in Costa Rica. A Medicare card should not be your payment plan for routine local appointments or an unexpected hospital admission.

Map out Costa Rican coverage through the Caja and private-healthcare options relevant to your status. Ask who pays first, what requires authorization, which hospitals participate and how you would handle an upfront charge. Keep the answers in the same folder as your policy documents.

The practical goal is to know where you would go and how the bill would be handled before you need care.

A foreign-travel benefit has limits

The same Medicare booklet explains that certain Medigap plans provide limited foreign-travel emergency coverage: generally 80% of eligible billed charges after a US$250 annual deductible, for emergencies beginning within the first 60 days of a trip, with a US$50,000 lifetime limit. Check your own policy; these are not benefits every Medigap plan includes.

That is a different product from comprehensive coverage for a year abroad. Medicare Advantage plans may have additional travel benefits, but the exact plan and its residence requirements matter. Ask the insurer how moving to Costa Rica changes eligibility, rather than describing a permanent relocation as an extended holiday.

Make the Part B decision before canceling anything

Medicare’s enrollment guide for people outside the U.S. warns that delaying Part B can leave you paying for U.S. outpatient care yourself and waiting for an enrollment opportunity later. Some people covered through current employment qualify for a Special Enrollment Period. An individually purchased private policy does not automatically provide that protection.

Do not assume Caja membership, a travel policy or retiree coverage is equivalent to qualifying coverage based on current employment. Ask Social Security to evaluate the coverage and employment evidence in your own case before declining or canceling Part B.

The decision deserves more than a comparison of this year’s premium with this year’s expected appointments. Consider planned U.S. visits, the possibility of returning permanently and whether you could absorb a coverage gap.

Understand the penalty in percentages

Under Medicare’s late-enrollment rules, the Part B premium generally increases by 10% for each full 12-month period you could have enrolled but did not, unless an exception applies. The surcharge usually continues for as long as you have Part B.

For illustration, three complete uncovered years that count toward the penalty would produce a 30% surcharge, not a one-time 30% fee. The dollar amount depends on the applicable premium; it is not permanently fixed at the amount in effect when you moved.

Use that example to frame a discussion, not to calculate your own penalty without checking enrollment eligibility, dates and exceptions.

Give a return to the United States its own checklist

Medicare has a Special Enrollment Period for joining an Advantage or drug plan after moving back to the U.S.. It lasts for two full months after the month of return. This is a plan-enrollment opportunity; it does not by itself erase a Part B penalty or establish that Part B can start whenever you want.

Before a return, confirm your Part A and Part B status, the effective dates of any new coverage, local plan availability and how prescriptions will be supplied during the transition. Ask separately about Medigap options and any enrollment protections that apply.

For the move to Costa Rica, keep a one-page coverage record: current policies, premiums, renewal dates, contact numbers and the written explanation of your Part B decision. Review it if employment ends, a spouse’s coverage changes or a temporary stay becomes permanent.