What is the difference between a Medicare Supplement and Medicare Advantage?

Asked by: Maurice Mills DVM  |  Last update: October 21, 2025
Score: 5/5 (2 votes)

Medicare Advantage and Medicare Supplement are different types of Medicare coverage. You cannot have both at the same time. Medicare Advantage bundles Part A and B often with Part D and other types of coverage. Medicare Supplement is additional coverage you can buy if you have Original Medicare Part A and B.

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.

What is the biggest disadvantage of the Medicare Advantage Plan?

Medicare Advantage Plan Pros And Cons

One disadvantage is that some Medicare Advantage plans may offer fewer options when it comes to doctors and hospitals, as they may have smaller plan networks than Original Medicare.

What is the advantage of a Medicare Supplement over a Medicare Advantage Plan?

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.

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.

2025 Medicare Cost Comparison | Advantage vs Supplement

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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.

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 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.

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 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.

Why is original Medicare better than Medicare Advantage?

Medicare Advantage plans typically require that you use care providers within a geographic service area, and once you get outside that area, you'll be covered for emergency care only. Original Medicare offers access to a national network of providers — no matter where you are in the U.S. Like to minimize risk.

Do all hospitals accept Medicare Advantage plans?

While most hospitals do accept Original Medicare, there may be some that do not accept Medicare Advantage Plans. However, if you have a medical emergency while you're enrolled in a Medicare Advantage plan, you can seek care at any ER or hospital in the country.

Why is a plan G better than an advantage plan?

Medigap Plan G offers more comprehensive benefits than the Medicare Advantage plan and is more widely available. It also provides more freedom for enrollees. For example, a Medigap Plan G enrollee can visit a specialist without a referral.

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.

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.

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.

What are the top 5 Medicare Supplement plans?

💬 From our Nerds: What are the top five Medicare supplement plans? "Based on NerdWallet's Medigap rubric, I picked five best Medicare Supplement Insurance companies for 2025: AARP/UnitedHealthcare, Mutual of Omaha, State Farm, Anthem and Blue Cross Blue Shield.

Do medicare advantage plan premiums increase with age?

Can I be charged a higher premium for Medicare Advantage plans if I have a pre-existing condition or if I smoke? No, Medicare Advantage plans charge the same premiums to all enrollees; they are not permitted to vary premiums based on age, smoking history, gender, or pre-existing medical conditions.

Does everyone have to pay $170 a month for Medicare?

Most people pay no premiums for Part A. For Medicare Part B in 2025, most beneficiaries will pay $185 per month. Certain factors may require you to pay more or less than the standard Medicare Part B premium in 2025.

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.

Can I drop my employer health insurance and go on Medicare Part B?

Once you stop working (or lose your health insurance, if that happens first) you have an 8-month Special Enrollment Period (SEP) when you can sign up for Medicare (or add Part B to existing Part A coverage).

Why are doctors dropping Medicare Advantage?

Health systems have cited delayed reimbursements, cumbersome prior authorization requirements and high rates of patient claim denials for their decisions to drop Medicare Advantage plans.

Who is the largest Medicare Advantage provider?

Why we picked it: A large network of medical providers means it may be easier to find a doctor or specialist who takes your insurance.
  • UnitedHealthcare is the largest provider of Medicare Advantage plans. ...
  • Aetna is a CVS Health company and is the fourth-largest provider of Medicare Advantage plans.

What hospitals do not accept Medicare?

Generally, the hospitals that do not accept Medicare are Veterans Affairs and active military hospitals (they operate with VA and military benefits instead), though there are a few other exceptions nationwide. Hospitals need to follow specific safety and health regulations in order to participate with Medicare.