What does a Medicare Supplement provide?

Asked by: Kathleen Kling  |  Last update: October 24, 2025
Score: 4.6/5 (24 votes)

Medicare Supplement Insurance (Medigap) is extra insurance you can buy from a private health insurance company to help pay your share of out-of-pocket costs in Original Medicare, like copayments, coinsurance, and deductibles.

What do Medicare supplements pay for?

Original Medicare Part A (Hospital Insurance) and Part B (Medical Insurance) pay for many, but not all, healthcare services and supplies. Medicare Supplement insurance plans help pay your share of some of the healthcare costs that Original Medicare doesn't cover, like copayments, coinsurance and deductibles.

What is the downside to Medicare Supplement plans?

There are a couple of cons to consider before choosing a Medigap plan: Premiums: Medigap premiums can be pricey. Coverage: Medicare Supplement plans don't cover everything, so you'd still have to pay out of pocket for things like dental care, vision care and long-term care.

Is there a Medicare Supplement that covers everything?

With Medicare Supplement Plan F, you get the most complete coverage available. And because Plan F also covers costs in excess of Medicare-approved amounts, you may have no out-of-pocket costs for hospital and doctor's office care.

What is the advantage of a Medicare Supplement?

Some Medicare Advantage plans may also offer extra benefits, such as routine dental, vision and hearing services. A Medicare Supplement plan, also called Medigap, isn't bundled with anything—it's extra coverage you can buy to help pay the out-of-pocket expenses Original Medicare doesn't pay.

2025 Medicare Cost Comparison | Advantage vs Supplement

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Why is it not a good idea to have supplemental insurance?

One of the most significant drawbacks of supplemental insurance policies is the coverage limits. For instance, with Mechanical Repair Coverage, you'll typically need to pay out of pocket until your deductible is met on your primary policy before supplemental insurance takes over to cover a costly vehicle repair.

What is the best medicare plan that covers everything for seniors?

Original Medicare with Medigap likely offers the most comprehensive coverage, but it may also be the most costly. A person can consider their income and how much they are able to spend before choosing a Medicare plan. Original Medicare with Medigap also offers a lot of flexibility when choosing a doctor or specialist.

What is the most popular Medicare Supplement plan?

For most people, the best Medicare Supplement option is Medigap Plan G from AARP/UnitedHealthcare, which costs $157, on average. This plan covers nearly all of the costs that you're responsible for paying with Original Medicare. Plus, AARP/UnitedHealthcare has a good customer service reputation and affordable prices.

Why are people leaving Medicare Advantage plans?

Key takeaways: People leave Medicare Advantage plans because out-of-pocket costs vary between plans, network restrictions can cause frustration, prior authorization requests can delay care, and it can be difficult to use the additional benefits they provide.

What are the 6 things Medicare doesn't cover?

Some of the items and services Medicare doesn't cover include:
  • Eye exams (for prescription eyeglasses)
  • Long-term care.
  • Cosmetic surgery.
  • Massage therapy.
  • Routine physical exams.
  • Hearing aids and exams for fitting them.

Do I really need supplemental insurance with Medicare Part?

Supplemental insurance is advisable for those with Medicare to help cover out-of-pocket costs and gaps in coverage, offering financial protection for deductibles, coinsurance, and other medical expenses not fully covered by Medicare.

Why do doctors not like Medicare Advantage plans?

Across the country, provider grumbling about claim denials and onerous preapproval requirements by Advantage plans is crescendoing. Some hospitals and physician practices are so fed up they're refusing to accept the plans — even big ones like those offered by UnitedHealthcare and Humana.

Can I drop my Medicare Advantage plan and go back to original Medicare?

Medicare Advantage Open Enrollment Period: Between January 1 and March 31 of each year, if you already have a Medicare Advantage Plan (with or without drug coverage) you can: Switch to another Medicare Advantage Plan (with or without drug coverage). Drop your Medicare Advantage Plan and return to Original Medicare.

Can you be denied a Medicare Supplement plan?

At other times, insurance companies may refuse to sell you a policy. If you have or had health problems, you may not be able to buy the Medigap plan of your choice unless you are in open enrollment or a guarantee-issue period.

Does Medicare Supplement cover dental?

Medicare Supplement plans help offer extra coverage for what Original Medicare does not cover, such as copays, deductibles, and coinsurance. Most Medicare Supplement plans do not include dental and vision care, so there are options to purchase separate coverage.

Why are seniors losing Medicare Advantage plans?

Medicare vs Privatized Medicare Advantage

Beneficiaries are tossed aside because they live in an unprofitable market for their insurer or because they are actually using the insurance they signed up for to access services.

What happens if you can't afford a Medicare supplement plan?

If you are still finding yourself squeezed, look into a Medicare Savings Progam. There are four different programs with different asset and income criteria. These programs can help you to pay for Part A and Part B. They can also enroll you in the Extra Help program to assist with Part D costs.

Why is a medicare supplement better than an advantage plan?

Consider Original Medicare with a Medigap plan if you:

Original Medicare with a Medigap plan gives you access to any doctor or hospital that accepts Medicare. Intend to travel. Medicare Advantage plans come with limited service areas; if you travel outside, you may have to pay out of pocket for medical care.

Do most doctors accept Medicare Supplement plans?

The short answer is “No”. However, if a doctor accepts Medicare itself, which is your primary coverage, then they will also accept your Medigap plan, regardless of what company sold you the plan or which Medigap plan you have. The key thing to remember is that Medigap plans “follow” Medicare.

Does everyone pay $170 for Medicare?

If you don't get premium-free Part A, you pay up to $518 each month. If you don't buy Part A when you're first eligible for Medicare (usually when you turn 65), you might pay a penalty. Most people pay the standard Part B monthly premium amount ($185 in 2025).

What percent of seniors choose Medicare Supplement plans?

Key takeaways from the report included: The percentage of fee-for-service Medicare enrollees purchasing Medicare Supplement coverage grew from 35.4% to 41.4% between December 2017 and December 2022.

Why are hospitals refusing Medicare Advantage plans?

Among the most commonly cited reasons are excessive prior authorization denial rates and slow payments from insurers. In 2023, Becker's began reporting on hospitals and health systems nationwide that dropped some or all of their Medicare Advantage contracts.

Is there a Medicare plan that pays 100%?

Medicare Advantage Plan (Part C):

Deductibles, coinsurance, and copayments vary based on which plan you join. Plans also have a yearly limit on what you pay out-of-pocket. Once you pay the plan's limit, the plan pays 100% for covered health services for the rest of the year.

Is UnitedHealthcare a good insurance for Medicare for seniors?

UnitedHealthcare Medicare Advantage plans are rated at about the industry average, receiving an average rating of 3.93 stars out of 5 from the Centers for Medicare & Medicaid Services (CMS) for 2025, weighted by enrollment. For comparison, the average weighted star rating for plans from all providers is 3.95.