What is Medigap Insurance?

You may have heard of Medigap insurance but aren’t quite sure what it is. This type of insurance is also known as Medicare Supplement insurance. In this article, we will answer the questions of what Medigap is in addition to providing more information about this type of supplemental insurance.

For even more information on your Medicare choices, please see my articles and videos title Medicare Explained – Secrets of Who & Why and Medicare Explained – What is Medicare.

What is Medigap?

A Medigap policy is a type of health insurance designed to supplement your Original Medicare benefits. A Medigap policy can help pay for some of the out-of-pocket costs that Medicare doesn’t cover, such as copayments, coinsurance, and deductibles.  Medicare enrollees increase their insurance coverage when they buy a Medigap policy.

Medigap covers the coinsurance, copayments and deductibles the Medicare enrollee would pay without a supplement.  They are sold by private companies through an agent or broker and reduce your health care / medical care costs.

When Am I Eligible for Medicare?

To be eligible to enroll in a Medigap plan, you must first be enrolled in both Medicare Part A and Part B, also known as Original Medicare. This calculator will show you when your Medicare initial enrollment will be

Once you have an Original Medicare Plan and a Medigap policy, Medicare and your Medigap policy will pay their respective share of covered health care costs.

Medigap coverage can be a valuable addition to your Original Medicare plan. However, it is important to note that Medigap is not an insurance policy itself. It’s a supplemental policy that works hand-in-glove with your Original Medicare to improve your Medicare benefits.

Medigap Plans are sold by private companies, not the United States Government. An independent insurance broker should work with multiple insurance companies to offer all the plans available in your area. Medigap Seminars is the “Medicare Agent Near Me” most people ask for.

What are The Different Types of Medigap Insurance?

There are ten Medicare supplement plans, standardized by the federal government. Although they’re sold by private insurance companies, the benefits are identical regardless of the company. In addition, a Medigap plan is guaranteed renewable. This means the benefits never change. Medicare beneficiaries with a Medigap plan can be secure in knowing exactly what their benefits will be from year to year.

You can find a handy Medical Supplement Plans Comparison Chart Here. This chart helps you compare Medigap policies. For a personalized quote, please use this quote form to provide us the information we need. We will respond by email with your quotes.

What Do Medigap Plans Cover?

Medigap Seminars Office

All Medigap plans must cover at least these basic benefits:


      • Part A coinsurance and hospital costs up to an additional 365 days after Medicare benefits are used up

      • Part B coinsurance or copayment

      • The first three pints of blood each year

      • Part A hospice care coinsurance or copayment

    Additionally, some Medigap plans will also cover:


        • Costs related to skilled nursing facility care

        • Part A deductible

        • Part B deductible

        • Part B excess charges

        • Foreign travel emergency care

      What do Medigap policies not cover?

      If Medicare does not cover a service or procedure, the Medicare supplement plan cannot cover it either.  Read more “What Does Medicare Not Cover”. The Medigap plan pays the copays, coinsurance and deductible of Medicare’s covered health car costs.  Consumers who buy a Medigap policy increase their coverage over having just Medicare.

      Medigap plans do not cover:


          • Long-term care

          • Private duty nursing

          • Dental care

          • Vision care

          • Hearing aids and exams to fit them

          • Custodial or at-home recovery care

          • Prescription drugs

          • Healthcare not Medicare approved

        When Can I Sign Up for a Medigap Plan?

        You can sign up for a Medigap plan during your six-month Medigap Initial Enrollment Period. This period starts on the first day your Medicare Part B is active. Technically, this six months window is 180-days, which may be less than six full calendar months.  You can calculate your enrollment period here.

        Technically, you can buy a Medigap policy up to six months before your initial enrollment date, but the Medicare supplement insurance cannot start until your Medicare is effective.   Both Medicare Part A and Medicare Part B must be active for Medigap policies to function.

        It should be noted that there is no federal mandate requiring states to offer Medicare supplement insurance to those eligible for Medicare but under the age of 65. If you are in this situation, check with your state insurance department or an independent Medicare broker.

        No Underwriting

        During your Medigap Initial Enrollment Period, you are guaranteed to be accepted by a Medigap insurance company. You cannot be denied coverage or charged more due to preexisting conditions. This is true even if you have health problems. In addition, you will not have to undergo medical underwriting during this time.

        If you wait to sign up for a Medigap plan outside of this window, you may be subject to medical underwriting. Medical underwriting could result in higher premiums or being denied coverage.

        What Is Medical Underwriting?

        Medical underwriting is the process by which insurance companies evaluate your health history to determine your premiums or whether or not to accept your application.

        How Much Does a Medigap Policy Cost?

        The cost of a Medigap policy depends on a few different factors, including the state you live in, your age, tobacco use, gender and the specific plan you choose. In general, Medigap plans are available for purchase from private insurance companies or through their independent agents. The monthly premium is paid directly to the insurance company and automatically renews yearly with the benefits being guaranteed renewable.

        In some states, the monthly cost for a supplement policy can be under $100 for a 65-year old non-smoker. In other states in can be closer to $300. Keep in mind, you must also pay your monthly Part B premium and enroll in Medicare prescription drug plans.

        How do Insurance Companies Price Medigap Plans?

        There are three different ways that insurance companies can price Medigap plans:

        Community rating: All people living in the same area and enrolling in the same Medigap plan pay the same monthly premium, regardless of age or health status.

        Issue-age rating: Your monthly premium is based on your age when you first enroll in a Medigap plan. if you purchase a policy at age 65, you will always pay the 65-year old rate. That rate can change over time.

        Attained-age rating: Your monthly premium starts low but gradually increases as you age. This is the most common pricing method and often the lowest cost over your lifetime.

        Some Medicare beneficiaries mistakenly believe that one pricing method will always be a lower cost over their lifetime. This is not true. No pricing method will turn an insurance company into a philanthropic organization. Insurance companies can increase their prices in every situation.

        What’s the Difference Between Medigap Policies and Medicare Advantage Plans?

        Mediap vs Medicare

        Medicare Advantage plans and Medigap policies are both ways to help cover the costs of Medicare. Medicare Advantage plans are offered by private insurance companies and replace your original Medicare plan. You might also hear a Medicare Advantage plan referred to as “Part C”

        An Advantage plan replaces your Medicare Parts A and B. A supplement builds on your Medicare paying the copays, coinsurance and deductibles of what Original Medicare pays.

        For more on Advantage plans, please see my article and video; Medicare Advantage Plans Explained.

        What is the Difference Between a Medigap Policy and Medicare Advantage?

        A Medicare Advantage Plan replaces your Medicare Part A and Part B.  It does not build on or add to your Medicare.  It replaces it.

        A Medicare Advantage plan will typically have network restrictions, meaning you may only be covered for care from providers within the plan’s network.  In addition, your doctor will be required to obtain preauthorization from the insurance company before performing any non-urgent treatment.  

        Medicare supplemental insurance policies do not have network restrictions and will cover you for care from any Medicare-approved provider.  Medigap policies will have a premium requirement, but your cost for health care can be near zero.

        Medicare Advantage plans mostly have lower premiums than Medicare policies, but the cost for medical services can be much higher.

        Medicare Advantage plans often come with bundled Part D prescription drug coverage.

        Prescription drug coverage is not included when you buy a Medigap policy. You should buy a stand-alone Medicare Prescription Drug Plan (Part D) to add drug coverage to your Medigap policy.

        We hope this article has helped give you a better understanding of Medigap insurance and its potential benefits. Ultimately, whether or not you decide to purchase a Medigap policy is a personal decision. However, if you are Medicare-eligible and are interested in supplementing your coverage, Medigap insurance should be considered.

        If you have any further questions about Medigap insurance, please reach out to us using our toll-free or local numbers or via the form on our Contact Page.

        Matthew Claassen, CMT and CEO of Medigap Seminars Insurance Agency. Medigap Seminars is an award winning premier national Medicare Insurance Brokerage, ranked among the top in the U.S.A. Matthew is considered a leading national expert on Medicare and Social Security. Mr. Claassen is a distinguished member of the Forbes Business council, an invitation only organization of business leaders and entrepreneurs. He and his team have received awards from many of the countries largest insurance companies including Mutual of Omaha, Aetna, Humana, Cigna, United American, United Healthcare and others. His videos have become the most popular Medicare educational videos on YouTube with millions of views. As a financial analyst Matthew lead a team of researchers to win the 2009 Best Equity Research & Strategy Award from The Technical analysis magazine.


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