Who this is for
Patients, caregivers, families, and healthcare workers who need to explain why Medicare coverage still leaves bills or uncovered needs.
60-second summary
Medicare does not cover everything. Original Medicare usually does not cover most long-term custodial care, most routine dental, routine vision, hearing aids, most care outside the United States, cosmetic services, and some non-medical support. Medicare Advantage and supplemental coverage may change some benefits, but plan rules, networks, and limits still matter.
Fact sheet
Most long-term custodial care
Ongoing help with daily living rather than short-term skilled medical or therapy care.
- Bathing, dressing, toileting, meals, supervision, and daily safety help are common examples.
- Medicare may cover limited skilled care when strict rules are met.
- Medicaid may help people who qualify under state rules.
Routine dental, vision, and hearing under Original Medicare
- Original Medicare generally does not cover most routine dental care.
- Routine eye exams and eyeglasses are limited under Original Medicare rules.
- Hearing aids are generally not covered by Original Medicare.
- Some Medicare Advantage plans may include extra benefits, but details vary by plan.
Care outside the United States
- Original Medicare generally does not cover care outside the United States except in limited situations.
- Travelers should verify Medigap, Medicare Advantage, travel insurance, or other coverage before assuming protection.
What to ask before assuming coverage
- Is this service covered by Original Medicare, Medicare Advantage, Part D, Medigap, Medicaid, or another payer?
- Is the provider in-network or Medicare-approved?
- Is prior authorization required?
- What could the patient owe if the service is covered?
- What is the backup plan if the service is not covered?
A coverage gap example
A patient finishes a covered rehab stay but still cannot safely bathe, dress, cook, or stay alone. The family asks Medicare to cover long-term home aide support. Medicare may cover some skilled home health services when rules are met, but ongoing custodial daily help is usually a different problem.
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Common mistakes
- Assuming covered means free.
- Assuming Medicare Advantage extra benefits are the same in every county or plan.
- Assuming Medigap covers services Original Medicare does not cover.
- Waiting until a bill arrives to ask whether the service was covered.
Key takeaway
Medicare covers many important services, but it leaves major gaps. The biggest practical gaps are long-term custodial care, routine dental/vision/hearing under Original Medicare, foreign travel, and non-medical support needs.
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Sources
- Medicare.gov· Official Medicare program information
Federal site for benefits, enrollment, and coverage rules.
- Medicare.gov· Long-term care coverage
Official coverage guidance for long-term and custodial care.
- Medicare.gov· Medigap basics
Official explanation of how Medicare Supplement insurance works with Original Medicare.
- Medicare.gov· Compare Original Medicare & Medicare Advantage
Official comparison of provider access, referrals, drug coverage, and plan rules.