Medicare doesn't cover you in Mexico. That's the starting point. American expats have three main alternatives — IMSS, private Mexican insurance, and international health insurance — with dramatically different costs, coverage, and quality. Here's what works in 2026.
Medicare Parts A, B, and D do not cover medical care outside the United States (except in very limited border emergency situations). Medigap supplemental plans also don't extend to Mexico. If you move to Mexico, you need alternative coverage. The three main options for American expats are: IMSS (Mexico's public social security healthcare), private Mexican health insurance, and international health insurance with Mexico coverage. Each works very differently.
IMSS (Instituto Mexicano del Seguro Social) is available to foreign nationals with legal residency status in Mexico. Voluntary enrollment costs approximately $500–$800/year per adult in 2026 (fees are adjusted annually by IMSS). Coverage includes: primary care, specialist consultations, hospitalization, surgery, maternity care, dental, and prescriptions — all at IMSS facilities. Quality varies significantly by location: IMSS facilities in major cities generally provide competent care for routine and urgent medical needs. Wait times are longer than private care. The guide covers IMSS enrollment steps specific to American residents.
Most American expats who plan to stay in Mexico long-term use private Mexican health insurance. The major providers are GNP, AXA México, Metlife México, and Bupa México. Annual premiums for a healthy 40-year-old run approximately $1,200–$2,200/year for major medical coverage. For a 55-year-old, $2,500–$4,000/year. For 65+, $4,000–$7,000/year. These plans typically cover hospitalization, surgery, and major procedures at private hospitals but have deductibles of $1,000–$3,000 USD. Routine consultations and prescriptions are usually out of pocket. The guide includes a side-by-side comparison of the major providers' 2026 plans.
International health insurance plans (Cigna Global, Allianz Care, Aetna International, GeoBlue) cover medical care globally — including both Mexico and the US. This is useful for Americans who travel to the US frequently or want coverage in both countries. Annual premiums are higher: $3,000–$6,000/year for a 40-year-old, $6,000–$12,000/year for 60+. The major advantage: you can access care in the US on visits without paying out-of-pocket, and you have continuity of care across borders. The guide covers which international plans have the best Mexico-specific networks.
Many American expats in Mexico — particularly young and healthy ones — choose minimal insurance and pay out of pocket for routine care. This works in Mexico in ways it wouldn't in the US because the costs are so low: specialist consultation $30–70, blood panel $20–60, urgent care visit $50–150, MRI $150–400, one-week hospitalization (private hospital) $2,000–$8,000. Many expats combine a catastrophic-only international plan ($500–$1,000/year) with direct-pay for everything else. The guide covers which scenarios make direct-pay sensible versus risky.
Private hospital quality in major Mexican cities has improved significantly. Hospitals like Hospital Angeles, Christus Muguerza, Hospital San José TecSalud, and Centro Médico ABC in Mexico City have JCI accreditation (the same international standard as top US hospitals). Medical tourism to Mexico from the US is mainstream for dental, orthopedic, and cosmetic procedures — the cost savings are 60–80% versus US prices even accounting for travel. The guide covers which cities have the strongest private hospital networks for American expats.
Dental care in Mexico is one of the most compelling healthcare cost advantages. A dental cleaning runs $20–40. A crown costs $200–500 at a quality private dentist (versus $1,000–2,000 in the US). Full-mouth dental implants run $1,500–4,000 (versus $20,000–50,000 in the US). Prescription glasses with quality lenses cost $50–150 at an optical shop. These savings alone justify the cost of the Mexico guide for many expats planning a move.
For serious conditions (advanced cancer treatment, rare surgery, complex neurological cases), many American expats prefer US care. The logistics: Medicare reactivates when you return to US soil if you've maintained Parts A and B. Keeping Medicare Part B (premium approximately $174/month in 2026) is worth it for Americans who anticipate needing US care. The guide covers Medicare enrollment windows, the consequences of not maintaining Part B, and how to structure coverage that bridges both countries.
Educational content only — not tax or legal advice. This guide is an orientation document. Tax law is complex and individual situations vary. Always consult a qualified US expat CPA and a licensed local attorney before making financial, visa, or property decisions. Figures are verified as of the date shown and subject to change. Full disclaimer →