What Does Medicare Not Cover? 7 Critical Gaps Seniors Miss
Original Medicare covers hospital stays and doctor visits well. But there are 7 common services it does not pay for at all. Finding that out after the fact can cost you thousands.
Find a Health Insurance Broker Near You →Last updated: May 2026
What Does Medicare Not Cover? The Gaps That Catch People Off Guard
Knowing what Medicare does not cover is just as important as knowing what it does. Most people enroll expecting broad health protection. What they get is solid coverage for hospital stays, doctor visits, and approved medical procedures. But there are real gaps: services Medicare simply does not pay for, regardless of how much you may need them.
A 65-year-old couple retiring today can expect to spend an estimated $345,000 out of pocket on healthcare costs during retirement, even with Medicare, according to Fidelity. A significant portion of that comes from the gaps below. For a full overview of what Medicare Parts A and B actually pay for, see our Medicare Parts Explained guide.
Here is a breakdown of exactly what Medicare does not cover, what each gap typically costs, and what your options are.
7 Things Medicare Does Not Cover
- Routine dental care (cleanings, fillings, extractions, dentures)
- Routine vision care (eye exams, glasses, contact lenses)
- Hearing aids and exams to fit them
- Long-term custodial care (assisted living, daily nursing home help)
- Prescription drugs under Original Medicare (Part D is separate)
- Most medical care outside the United States
- Routine foot care and certain other everyday services
Gap 1: Routine Dental Care
When people ask what Medicare does not cover, dental care is usually the first surprise. According to Medicare.gov, Original Medicare does not cover most dental services. That includes routine cleanings, exams, X-rays, fillings, tooth extractions, dentures, and bridges. There are narrow exceptions: Medicare may pay for dental care that is directly required as part of a covered medical procedure, like jaw reconstruction after an accident. But as a general rule, if you need dental work, Medicare is not going to help.
That has real budget consequences. Without coverage, a routine dental exam and cleaning averages $203, according to Guardian Life. A composite filling averages $226. A root canal averages $1,165. A single dental implant averages $2,695 per tooth. Smaller dental issues, left unaddressed, typically become more involved and more expensive over time.
Gap 2: Routine Vision Care
Original Medicare does not cover routine eye exams or prescription eyeglasses. If you go to the eye doctor to update your prescription, you are paying out of pocket. The same applies to contact lenses.
There is one narrow exception: if you have cataract surgery, Medicare covers one pair of standard eyeglasses or contact lenses following the procedure. That is the extent of Medicare’s vision benefit for most people.
What Medicare does cover is diagnostic eye care ordered by a physician. A glaucoma screening for high-risk patients, a diabetic retinal exam, or an eye exam to evaluate a specific medical condition may be covered under Medicare Part B. The distinction is medical versus routine. Routine is not covered.
Many Medicare Advantage plans offer routine vision benefits that Original Medicare does not. If you wear glasses or contacts and are approaching Medicare enrollment, this is worth factoring into which plan you choose.
Gap 3: Hearing Aids
Hearing aids are not covered by Original Medicare at all. Neither are the fitting exams needed to select and calibrate them.
HearingTracker surveyed more than 1,100 US hearing aid buyers and found the average price paid was $2,694 per pair in 2026. Costs vary widely depending on where you buy and what technology level you choose, but that figure gives you a realistic starting point for budgeting. Top-end devices run higher. That is an entirely out-of-pocket expense with no Medicare assistance.
Medicare does cover diagnostic hearing exams when a physician orders them to evaluate a specific medical condition. But the hearing aids themselves, and any exam specifically for fitting them, fall outside Medicare’s coverage.
Some Medicare Advantage plans do include hearing aid benefits, which can meaningfully reduce what you pay. If hearing loss is already a concern, check for this benefit when reviewing plan options during open enrollment.
Gap 4: Long-Term Custodial Care: The Largest Gap of All
When it comes to what Medicare does not cover, long-term custodial care carries the largest financial consequences. This is the gap that catches families off guard most often, and the one most people do not fully understand until they are already experiencing it.
Medicare does cover short-term skilled nursing care under limited conditions. If you are hospitalized for at least three consecutive days and then transferred to a skilled nursing facility for continued recovery (after a hip replacement, for example): Medicare covers the first 20 days fully. Days 21 through 100 carry a copay of $217 per day. After 100 days, coverage ends entirely. Our post on What Does Medicare Part A Cover explains the skilled nursing rules in detail.
What Medicare does not cover is custodial care. That is the ongoing daily help with bathing, dressing, eating, using the bathroom, and getting around. This is what most people need in an assisted living community or nursing home over months or years, and Medicare pays for none of it, regardless of how long you need it.
The costs fall entirely on you unless you have other coverage. According to the CareScout 2025 Cost of Care Survey, assisted living costs a national median of $6,200 per month. A semi-private nursing home room averages $315 per day, which works out to roughly $9,600 per month. A private room runs about $355 per day, or approximately $10,800 per month.
These costs fall on the family unless you have Medicaid (which has strict income and asset requirements), long-term care insurance, or savings set aside specifically for this purpose. Many families find they do not have those options in place when the need first arises.
Gap 5: Prescription Drugs If You Only Have Original Medicare
Original Medicare, Parts A and B, includes no prescription drug coverage at all. If you want help with medication costs, you need Medicare Part D, which is a separate plan you enroll in alongside Original Medicare. Some Medicare Advantage plans also include drug coverage.
Part D is technically optional, but skipping it when you first become eligible has permanent consequences. Medicare charges a late enrollment penalty of 1% of the national base beneficiary premium for every month you were eligible but went without creditable prescription drug coverage. That penalty is added to your premium permanently.
If you do have Part D, the news has improved significantly in recent years. The coverage gap known as the “donut hole” was eliminated at the end of 2024. In 2026, once you spend $2,100 out of pocket on covered medications, your plan pays 100% for the rest of the year, according to GoodRx. That is a major improvement over 2024, when the out-of-pocket threshold was $8,000 before catastrophic coverage kicked in.
But if you are relying on Original Medicare with no Part D plan and no other drug coverage, you have no prescription drug coverage at all. That is the gap.
Gap 6: Medical Care Outside the United States
In most situations, Medicare does not cover medical care received outside the United States and its territories. If you get sick or injured while traveling abroad, you are generally responsible for the cost.
There are a small number of specific emergency exceptions documented in the official Medicare & You 2026 handbook, but they are narrow and apply to limited circumstances. For practical planning purposes, it is reasonable to treat Medicare as providing no coverage outside the US and its territories.
If you travel internationally or spend part of the year outside the country, a travel health insurance policy is worth considering. Premiums are generally modest relative to what an emergency medical bill abroad can cost.
Gap 7: Routine Foot Care and a Few Other Surprises
A handful of everyday services catch people off guard because they seem like basic healthcare. Understanding what Medicare does not cover in these everyday categories can save you from an unexpected bill.
Routine foot care, including nail trimming, corn removal, and callus removal, is not covered by Medicare unless you have a documented medical condition like diabetes or peripheral vascular disease that makes the care medically necessary. Routine is not covered.
Cosmetic procedures are not covered either, unless they are medically necessary. Reconstructive surgery after an accident or mastectomy is covered. Elective procedures done for appearance alone are not.
If you want the full official list, Medicare.gov’s What’s Not Covered page outlines items and services excluded from Original Medicare’s benefits. It is the most reliable reference for checking a specific service before assuming coverage.
Frequently Asked Questions
What services are never covered by Medicare?
A few categories have no Medicare coverage under any circumstances. Routine dental care, routine vision exams and eyeglasses, hearing aids, and long-term custodial care fall into this group. These are excluded from Original Medicare and from Medigap supplement plans as well. Some Medicare Advantage plans offer limited dental, vision, and hearing benefits as extras, but those are plan-level additions, not part of the core Medicare benefit.
Does Medicare pay 100% of anything?
Yes. Medicare Part B covers most preventive screenings at no cost to you, including mammograms, colonoscopies, flu shots, and a range of other screenings, when you see a provider who accepts Medicare. Home health services and clinical lab tests are also covered at 100% under certain conditions. For most other services, you are responsible for deductibles, copays, or 20% coinsurance. Our Medicare Parts Explained guide covers what each part pays in full detail.
Does Medicare cover long-term care in a nursing home?
Only for short-term skilled care. After a qualifying hospital stay of at least three days, Medicare covers up to 100 days of skilled nursing facility care per benefit period, with a daily copay starting on day 21. Once you no longer need skilled nursing or therapy services, Medicare coverage stops completely. Medicare does not cover custodial nursing home care, which is the ongoing daily help most people need over months or years. If you meet the income and asset requirements, Medicaid may cover long-term nursing home costs.
What happens if I don’t sign up for Medicare Part D when I’m first eligible?
You pay a penalty that follows you permanently. Medicare adds 1% of the national base beneficiary premium to your Part D premium for every month you were eligible but went without creditable prescription drug coverage. The exception is if you had qualifying coverage through an employer plan during that period. Once that employer coverage ends, you have a limited window to enroll in Part D without triggering the penalty. Acting quickly when that window opens matters.
Can Medicare Advantage plans help cover these gaps?
In many cases, yes. Medicare Advantage plans are required to cover everything Original Medicare covers, and most include extra benefits such as dental, vision, and hearing coverage that Original Medicare does not offer. Some plans also include fitness memberships and telehealth services. The trade-offs include network restrictions and prior authorization requirements. For a full comparison of what Advantage plans offer versus Original Medicare paired with a Medigap supplement, see our post on Medicare vs Medicare Advantage.
📋 Free Download: Medicare in Plain English
New to Medicare or confused by all the options? Enter your email and we will send this plain-language guide straight to your inbox.
Continue Reading: Medicare & Health Insurance Guides
Content on SetToRetire.com is researched and drafted with AI assistance, then reviewed and edited for accuracy by the editorial team at Senior Media Group LLC. It is provided for general informational purposes only and does not constitute financial advice. Consult a qualified health insurance broker or licensed Medicare counselor for guidance specific to your situation. For more on how we create content, see our Editorial Process.
