What Does Medicare NOT Cover? (The Gaps You Need to Know)

Medicare Is Powerful — But Far From Complete

Medicare covers a tremendous amount of healthcare for seniors — hospital stays, doctor visits, preventive care, and (through Part D) prescription drugs. But it has significant gaps that surprise many new beneficiaries. Understanding what Medicare doesn’t cover is just as important as knowing what it does, so you can plan and protect yourself financially.

In 2026, with healthcare costs continuing to rise, these gaps can translate into thousands or even tens of thousands of dollars in out-of-pocket expenses. Here’s what Medicare leaves uncovered — and what you can do about it.

Major Gaps in Medicare Coverage

1. Long-Term Care (Nursing Home and Home Care)

This is the biggest gap of all, and the one that catches the most people off guard. Medicare does NOT cover custodial long-term care — meaning help with daily activities like bathing, dressing, eating, or using the bathroom, whether provided in a nursing home, assisted living facility, or your own home.

Medicare only covers skilled nursing facility care under very specific conditions: you must have a qualifying 3-day hospital stay, the care must be medically necessary (skilled nursing or rehab), and coverage phases out after 100 days (with significant copays starting on day 21).

The reality: A private room in a nursing home costs over $100,000 per year nationally. Assisted living averages $60,000+. This can devastate retirement savings. Options include long-term care insurance, hybrid life/LTC insurance, and Medicaid (for those who meet income/asset requirements).

2. Dental Care

Original Medicare does not cover routine dental care — cleanings, fillings, extractions, dentures, or dental implants. Most dental work for seniors comes 100% out of pocket unless you have supplemental dental insurance or a Medicare Advantage plan that includes dental benefits.

This gap matters enormously: oral health is closely linked to heart disease, diabetes, and other serious conditions. Many seniors delay dental care due to cost, which creates larger health problems.

Solutions: Medicare Advantage plans with dental benefits, standalone dental insurance, dental discount plans (like Careington or Aetna Dental Access), or dental schools where care is supervised and discounted.

3. Vision Care

Medicare does not cover routine eye exams for glasses or contact lenses, and it does not cover the cost of eyeglasses or contacts. Exceptions: Medicare Part B does cover annual eye exams for diabetic retinopathy, cataract surgery (including one pair of standard eyeglasses or contacts afterward), and treatment for glaucoma.

Solutions: Many Medicare Advantage plans include vision benefits. Standalone vision plans are available through AARP, VSP, and others. Discount retailers like Costco Optical and Walmart Vision Centers offer significant savings.

4. Hearing Aids and Exams

Medicare does not cover hearing aids or routine hearing exams. This is a significant gap given that approximately two-thirds of adults over 70 have some degree of hearing loss. Hearing aids can cost $2,000–$7,000+ per pair.

Solutions: Medicare Advantage plans increasingly include hearing benefits. Over-the-counter hearing aids (newly available since 2022) have reduced costs significantly. Some nonprofits offer hearing aid assistance programs.

5. Cosmetic Surgery

Medicare does not cover elective cosmetic surgery. However, if a procedure is medically necessary — such as reconstructive surgery after an accident or mastectomy, or surgery to correct a functional impairment — Medicare may cover it. The key word is “medically necessary.”

6. Acupuncture (Most Types) and Alternative Medicine

Medicare does cover acupuncture for chronic low back pain (up to 12 sessions in 90 days). However, it does not cover most alternative medicine treatments: chiropractic care (except spinal manipulation for specific conditions), massage therapy, naturopathy, or homeopathy.

7. Care Outside the United States

Original Medicare generally does not cover healthcare received outside the United States. This can be a serious issue for seniors who travel internationally, live part of the year abroad, or take cruises in international waters.

Solutions: Medigap Plans C, D, F, G, M, and N cover 80% of foreign emergency medical costs (after a $250 deductible, up to a $50,000 lifetime limit). Travel health insurance also provides this coverage.

8. Most Prescription Drugs (Without Part D)

Original Medicare (Parts A and B) does not cover most outpatient prescription drugs. You must enroll in a stand-alone Medicare Part D plan or choose a Medicare Advantage plan with drug coverage (MAPD). If you miss your Part D enrollment window, you’ll pay a permanent penalty when you do enroll.

The Financial Impact of Medicare Gaps

Fidelity estimates that a 65-year-old couple retiring in 2026 will need approximately $330,000 to cover healthcare costs in retirement — and this doesn’t include long-term care. These out-of-pocket costs include premiums, deductibles, copays, and services Medicare doesn’t cover.

How to Fill the Gaps

• Medigap (Medicare Supplement) insurance: Covers most out-of-pocket costs under Original Medicare (copays, deductibles, coinsurance), but not dental, vision, or hearing.
• Medicare Advantage (Part C): Many MA plans bundle dental, vision, and hearing coverage along with drug coverage — often for $0 additional premium beyond Part B.
• Health Savings Account (HSA): If you’re still working and contributing, maximize your HSA before Medicare. Funds can be used tax-free for any qualified medical expense.
• Long-term care insurance: Purchased ideally in your 50s before rates rise and health conditions disqualify you.
• Standalone supplemental plans: Dental, vision, and hearing plans are available separately at relatively low costs.

Frequently Asked Questions

Does Medicare cover assisted living?

No. Assisted living is considered custodial care and is not covered by Medicare. Medicaid may cover some assisted living costs for those who qualify financially.

Will Medicare cover my dental implants?

Original Medicare does not. Some Medicare Advantage plans include dental implant coverage, but it varies widely by plan. Check your specific plan’s Evidence of Coverage document.

Does Medicare cover hearing aids in 2026?

Original Medicare does not. However, many Medicare Advantage plans now offer hearing aid benefits — sometimes with significant allowances. You can also purchase over-the-counter hearing aids without a prescription.

What happens if I get sick on a cruise?

If the ship is in international waters, Medicare typically won’t cover it. Consider travel insurance with emergency medical coverage, or a Medigap plan that includes foreign travel emergency coverage.

Can Medicare be used outside the U.S.?

In very limited circumstances — mainly in border areas between the U.S. and Mexico or Canada where the closest hospital is foreign. Otherwise, you need supplemental coverage for international care.

Recommended Reading: 10 Costly Medicare Mistakes You Can’t Afford to Make — a highly rated guide to help you make the most of your retirement.