What Does Medicare NOT Cover? The Coverage Gaps That Catch People Off Guard

Medicare covers a lot — but it has significant gaps that surprise many new enrollees. Original Medicare does not cover routine dental care, vision exams or eyeglasses, hearing aids, most long-term care, or prescription drugs (without a Part D plan). Understanding what Medicare leaves out is just as important as knowing what it covers, because uncovered costs can add up to thousands of dollars per year.

What Are the Most Significant Medicare Coverage Gaps?

The gaps fall into two categories: services Medicare does not cover at all, and cost-sharing gaps where Medicare covers a percentage but you owe the rest. Both types of gaps can be addressed with supplemental coverage.

Services Medicare Does Not Cover At All

•  Routine dental care: cleanings, fillings, extractions, crowns, dentures. Medicare Part A only covers dental procedures directly tied to a covered hospital procedure.

•  Routine vision: eye exams for glasses or contacts, eyeglasses, or contact lenses. Medicare Part B covers certain diagnostic eye exams for conditions like glaucoma or diabetic retinopathy, but not routine vision correction.

•  Hearing aids and routine hearing exams. Medicare covers diagnostic hearing and balance exams ordered by a doctor but does not cover hearing aids or hearing aid fittings.

• Most long-term care and custodial care. Medicare covers short-term skilled nursing facility care following a qualifying hospital stay. It does not cover ongoing custodial care in a nursing home, assisted living, or at-home personal care.

•  Cosmetic surgery (unless medically necessary).

•  Care received outside the U.S. (with limited exceptions for emergencies near a U.S. border).

• Acupuncture (covered for chronic low back pain only).

What Are Medicare's Cost-Sharing Gaps?

Even for covered services, Original Medicare requires significant out-of-pocket spending. In 2026, the Part A hospital deductible is $1,736 per benefit period — and there is no annual limit on how many benefit periods you can have. The Part B deductible is $257 per year, after which Medicare covers 80% of approved costs and you owe 20%. There is no out-of-pocket maximum on Original Medicare.

For someone with a serious illness or extended hospital stay, these cost-sharing gaps can result in tens of thousands of dollars in personal liability. This is the primary reason most Original Medicare enrollees purchase a Medigap supplement plan.

How Can You Fill Medicare's Gaps?

Medicare Supplement (Medigap)

• Covers most or all Medicare cost-sharing gaps

•  Works with any provider that accepts Medicare nationwide

•  Plan G covers all gaps except the $257 Part B deductible

•  Predictable costs with no surprise bills

• Separate Part D plan adds drug coverage

Medicare Advantage

• Often $0 monthly premium beyond Part B

•  Bundles dental, vision, and drug coverage in one plan

•  Out-of-pocket maximum caps your annual exposure

•  Extra benefits like gym memberships and OTC allowances

•  Network-based — must use plan's approved providers

What About Dental, Vision, and Hearing Coverage?

Many Medicare Advantage plans include some dental, vision, and hearing coverage as extra benefits. However, coverage limits are often modest — dental benefits may be capped at $1,000–$2,000 per year, which may not cover major work. For more robust dental coverage, a standalone dental insurance plan through an independent broker may provide better value than relying solely on a Medicare Advantage bundle.

Does Medicare Cover Long-Term Care?

This is one of the most misunderstood aspects of Medicare. Medicare does NOT cover long-term custodial care — the kind of ongoing help with activities of daily living (bathing, dressing, eating) that most people eventually need. Medicare only covers skilled nursing facility care for up to 100 days following a qualifying 3-day inpatient hospital stay, and only for skilled care, not custodial care. After 100 days, Medicare pays nothing.

Long-term care insurance is a separate product designed specifically to cover these costs. The median annual cost of a private room in a nursing home exceeded $100,000 in 2024, making this a significant financial planning consideration.

Frequently Asked Questions

Q: Does Medicare cover dental implants?

No. Medicare does not cover dental implants, extractions, fillings, or most other routine dental work. Some Medicare Advantage plans include limited dental benefits

Q: Does Medicare pay for glasses?

Medicare does not cover routine vision exams or corrective eyeglasses. However, it does cover one pair of eyeglasses or contact lenses after cataract surgery.

Q: Does Medicare cover home health care?

Medicare Part A and B cover skilled home health care — nursing, physical therapy, speech therapy — ordered by a doctor following a hospitalization. It does not cover non-skilled custodial home care.

Q: How do I get dental and vision coverage with Medicare?

You can add dental and vision through a Medicare Advantage plan or purchase standalone dental and vision insurance. A broker can compare all options available in your area.

Key Takeaways

•  Medicare does not cover routine dental, vision, or hearing care.

•  Original Medicare has no out-of-pocket maximum — a Medigap plan or Medicare Advantage cap protects against catastrophic costs.

•  Long-term custodial care is not covered by Medicare; long-term care insurance fills this gap.

•  Medicare Advantage plans often bundle dental, vision, and drug coverage but vary significantly by plan.

•  A broker can identify which supplemental products best address your specific coverage gaps.

Sources & References

• Medicare.gov. What's not covered by Part A & Part B? medicare.gov

• Centers for Medicare & Medicaid Services. Your Medicare Coverage. cms.gov

• KFF. What Do Medicare Beneficiaries Pay Out of Pocket for Dental Services? kff.org

• Genworth. Cost of Care Survey 2024. genworth.com