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What does Medicare not cover?

August 8, 2024

Medicare beneficiaries receive comprehensive coverage for most health issues and the treatment of acute illness, but there are some expenses Medicare doesn’t cover. To make sure you are covered for some of these services, you may choose to purchase additional insurance, maintain coverage offered by a current or former employer, enroll in Medicaid if you’re eligible, or select a Medicare Advantage plan.

Here’s what you need to know:

What services aren't covered by Original Medicare – and are unlikely to be covered in Medicare Advantage?

The following are not covered by Medicare Part A or Part B and are unlikely to be covered by Medicare Advantage plans:

Medicare has strict rules about services it will cover, and it excludes some services from coverage. These rules are specified in the law, so while many commercial insurance plans that cover people who aren’t eligible for Medicare can make exceptions to their rules – and choose to cover certain services in certain circumstances – Original Medicare (Part A and Part B) can’t usually do this.

What services are not covered by Original Medicare but may be covered by Medicare Advantage plans?

Medicare Advantage plans may cover the following services that are excluded by Original Medicare:

Medicare Advantage plans are required to cover all of the services that Original Medicare covers (out-of-pocket costs differ). In addition, it’s very common for Medicare Advantage plans to also offer supplemental coverage for services that aren’t covered by Original Medicare. The most widely available supplemental benefits are vision, hearing, dental, and fitness programs, but there are a variety of other supplemental benefits that Medicare Advantage plans can offer.4

There’s a lot of variation from one Medicare Advantage plan to another when it comes to supplemental coverage. There’s also variation in terms of how mandatory coverage (Part A and Part B services) is provided, with differences in out-of-pocket costs, provider networks, prior authorization rules, and managed care designs (HMO, PPO, etc.). So picking a Medicare Advantage plan requires careful consideration.

You’ll want to prioritize the most important aspects, such as total out-of-pocket costs, access to medical providers, and coverage of the medications you need (most Medicare Advantage plans include Part D drug coverage). After you’ve narrowed down your options, comparing the supplemental benefits offered by each plan can be a good way to figure out which plan will provide you with the best overall value. The annual open enrollment period (October 15 to December 7) is your opportunity to switch plans if you’d like to do so.

Medicare beneficiaries who don’t want to use Medicare Advantage may choose to purchase private dental or vision insurance so they have coverage for these services. And as noted above, certain Medigap plans provide supplemental coverage for medical emergencies during a trip abroad.

Which services are covered by Medicare Part D?

These services are only covered under private Part D prescription drug plans (including Medicare Advantage Prescription Drug plans):

Before the Affordable Care Act, preventive screening exams generally were not covered by Medicare, but numerous screening tests are now covered under Medicare Part B because of the law.

To cover long-term care, some Medicare enrollees purchase private long-term care insurance, although this can be quite expensive. Medicaid provides coverage for long-term care services in every state, and covers a number of other things Medicare doesn’t pay for, like non-emergency medical transportation.

What if Medicare won’t pay for your care

If Medicare decides not to pay for a service you need, you can appeal (although you’ll appeal to your insurer if you have a Medicare Advantage plan). But if the service isn’t covered at all under Medicare, then an appeal probably won’t benefit you.

Footnotes
  1. OTC Hearing Aids: What You Should Know” U.S. Food and Drug Administration. May 23, 2023 
  2. Dental services” Medicare.gov. Accessed Aug. 8, 2024 
  3. Travel Outside the U.S.” Medicare.gov. Accessed Aug. 8, 2024 
  4. Medicare Advantage 2024 Spotlight: First Look” (Figure 9) KFF.org. Nov. 15, 2023 
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