Medigap Plans: 6 Tips for Medicare Supplement Insurance

July 28, 2023

Looking for Medigap plans?

You know…A Medicare Supplement Insurance plan to bridge coverage gaps to help protect your health and your pocketbook. Medicare Supplement Insurance is also called Medigap.

Choosing the right Medigap plan has a lot to do with knowing when and how to buy.

But there are a lot of variables to consider, including your personal circumstances and preferences.

In this article, you’ll learn…

Ready to bridge the gap and get clear on Medicare Supplement Insurance?

Let’s get started.

What Is Medicare Supplement Insurance?

Medicare Supplement Insurance is a type of supplemental medical insurance for Medicare beneficiaries (people under age 65 are eligible for Medigap plans is they are already on Medicare).

Medigap plans are sold by private insuranceprivate insurancePrivate health insurance is health care coverage provided by a private insurance company rather than the government. companies to help cover some costs after Original Medicare (Medicare Parts A and B).1

There are eight Medicare Supplement Insurance plans for new enrollees, which are represented by letters: A, B, D, G, K, L, M, and N.2

There are also two plans (C & F) that are available only to people who were eligible for Medicare before January 1, 2020.

Medigap premiums: How much does it cost?

In addition to your Medicare Part B premiumpremiumThe amount you pay for your health insurance every month., you pay a monthly premium for Medigap.

Why? Medigap plans provide different levels of coverage, and premiumspremiumsThe amount you pay for your health insurance every month. vary by plan type.

The premiums charged for the same plan can also be very different from company to company.

Other factors that determine how much you pay for Medicare Supplement insurance include:3

6 Tips to Help You Choose Medicare Supplement Insurance

When you’re looking for Medigap plans to help protect your health and save on out-of-pocket medical costs, there’s a lot of variables to consider.

Here are six tips to help you choose a Medical supplemental insurance plan that’s right for you:

1. Buy Medigap during your Open Enrollment Period 

Your Medigap Open Enrollment Period (OEPOEPThe yearly period (November 1 – January 15) when people can enroll in a Marketplace health insurance plan.) is the timeframe in which you can first buy any Medigap plan available in your area…

  • Regardless of whether you have health problems, and…
  • For the same price as a healthy person.

Your OEP lasts for 6 months. It starts on the first day of the month you’re 65 or older and enrolled in Medicare Part B.

  • For example, if you turn 65 and enroll in Medicare Part B in May, then May 1 through October 31 would be the best time to enroll.4

If you choose to delay enrollmentenrollmentThe process by which an eligible person becomes a member of an insurance plan. in Medicare Part B and you don’t buy a Medigap plan when you’re first eligible, you might have to pay a Part B late enrollment penalty.

But there’s an exception if you’re eligible for Medicare and have job-based insurance.4

2. Delay Part B and Medigap enrollment when you’re still working

Are you or your spouse still working past the Medicare-eligible age?

Delaying Medicare Part B enrollment—which also delays your Medigap OEP—may be in your best interest if you have group health insurance through an employer or union.

Before you decide if you want to keep your employer insurance, it’s a good idea to review Medicare Supplement Insurance plans to ensure you opt for the right choice for you.4

4 reasons to delay Medicare Part B enrollment:7

Here are four reasons you may want to delay Medicare Part B enrollment if you have health insurance through an employer or union:

  1. Group health insurance. In most cases, group health insurance based on current employment is often similar to Medicare Part B coverage.
  2. Need for benefits. You won’t have to pay for Part B benefits before you really need them.
  3. Employer coverage ends. If you enroll in Part B when your employer coverage ends, you won’t have to pay the Part B late enrollment penalty.
  4. Savings. You can use your Medigap OEP when it’s more of an advantage to you.

Note: If you’re going to delay enrollment in Medicare Part B because you’re currently employed, contact Social Security to let them know.

  • If you do choose to enroll in Part B while you have employer coverage, your Medigap OEP will start.
  • If you don’t buy a Medigap plan during this time period, you will miss your OEP, and you won’t get another OEP when your employer coverage ends.4

3. Buy Medigap outside of your Open Enrollment Period

If you wait until after your OEP to buy a Medicare Supplement Insurance plan, an insurance company can use medical underwriting to determine whether you qualify for a policy.

4. Buy Medicare Supplement insurance when you have a pre-existing condition

You can buy Medicare Supplement Insurance if you have a pre-existing conditionpre-existing conditionA health problem, like asthma, diabetes, or cancer, you had before the date that new health coverage starts..

Is there a waiting periodwaiting periodThe amount of time that a policy holder must wait before coverage can be used.?

Maybe. Getting a Medigap policy during your Open Enrollment Period can avoid or shorten waiting periodswaiting periodsThe amount of time that a policy holder must wait before coverage can be used. for a pre-existing condition if you buy a Medigap policy to replace “creditable coverage.”6

  • Creditable coverage is previous health insurance coverage that can be used to shorten a pre-existing condition under a Medigap policy.

While the insurance company can’t make you wait for your coverage to start, it may be able to make you wait for coverage related to a pre-existing condition.3

3 ways to waive the waiting period

In certain instances, this “pre-existing condition waiting period” can or must be waived under the following circumstances: 8

  1. Prior coverage. If you buy a plan during the Medigap OEP and you’re replacing prior creditable coverage, the insurance company may waive or shorten the waiting period.
  2. 6-month mark. If you had at least 6 continuous months (with no break in coverage for more than 63 days) of prior creditable coverage, the insurance company is not allowed to make you wait before covering your pre-existing condition(s).
  3. Guaranteed Issue Rights. If you buy a policy because you have a guaranteed issue right, the insurance company cannot place a pre-existing condition waiting period on your policy.

Insurance company exclusions for Medigap plans

Unless you have a guaranteed issue right, an insurance company is allowed to exclude coverage for a pre-existing condition if the condition was treated or diagnosed within 6 months before the coverage start date of the Medigap supplemental insurance policy.

Coverage for a pre-existing condition can only be excluded if the condition was treated or diagnosed within 6 months before your Medigap policy coverage starts. This is called the “look-back period.”

  • Original Medicare will still cover the condition, even if the Medigap policy won’t, but you’re responsible for the Medicare coinsurance or copayment.

5. Buy Medigap supplemental insurance when you have a Guaranteed Issue Right

What are Guaranteed Issue Rights?

In certain situations—usually when other coverage you have changes in some way or you lose or drop other coverage—Medigap protections under federal law ensure that insurance companies cannot:6

Don’t have a Guaranteed Issue Right to help you get a Medigap plan?

  • In other cases, you have a “trial right” to try a Medicare Advantage plan and still enroll in a Medigap policy if you change your mind.
  • You must apply for a Medigap policy within 63 days of the date your other coverage ends to use your guaranteed issue rights.
  • Guaranteed issue rights apply to Medigap plans A, B, K, and L.6

6. Understand Medigap out-of-pocket costs

After Medicare pays the approved amount for a covered medical service, your Medigap policy usually kicks in to cover Medicare’s out-of-pocket costs.

As shown in the chart below, some Medigap plans provide no coverage for certain benefits, while other benefits are covered at either:2

  • 50 percent
  • 75 percent
  • 80 percent
  • 100 percent

For example… 

  • You get 100 percent coverage for your Part B coinsurance or copayments under Medigap Plans A, B, D, G, M, and N.
  • But you get 50% coverage on Plan K and 75% coverage on Plan L for Part B coinsurance or copayments.

Keep in mind, though, that there is no “good” or “bad” plan—the plan you choose depends on your needs and budget.

Also, a Medicare Supplement Plan that provides less coverage usually has a lower premium than a plan that provides a higher level of coverage.2

Medigap Benefit

Plan A

Plan B

Plan C

Plan D

Plan F*

Plan G*

Plan K

Plan L

Plan M

Plan N

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

Part B coinsurance or copayment

50%

75%

✅*

Blood (first 3 pints)

50%

75%

Part A hospice carehospice careServices to provide comfort and support for persons in the last stages of a terminal illness and their families. Read more » coinsurance or copayment

50%

75%

Skilled nursing facility care coinsurance

50%

75%

Part A deductible

50%

75%

50%

Part B deductible

Part B excess charge

Foreign travel exchange (up to plan limits)

80%

80%

80%

80%

80%

80%

Out-of-pocket limit**

N/A

N/A

N/A

N/A

N/A

N/A

$6,940 in 2023

$3,470 in 2023

N/A

N/A

Source: Medicare.gov2

*Some states offer Plans F & G with higher deductiblesdeductiblesThe amount you pay for covered health care services before your insurance pays. Read more ».

**Plans K & L will only pay a portion of approved services before you meet your out-of-pocket yearly limit and Part B deductible. After you meet them, the plan will pay 100% for approved services.

***Plan N pays 100% of the costs of Part B services. However, you may still have copayments for some office visits and certain emergency room visits.

Find a Medigap plan: 4 things to remember

Still need a little help with choosing a Medicare Supplement Plan? Here are four things to remember:

  1. Enroll in either Medigap or Medicare Advantage. You can’t have both at the same time.
  2. If you buy Medigap, you must enroll in a Medicare Part D plan to get prescription drug coverage.
  3. Premiums. Remember that you pay both your monthly Medicare Part B premium and Medigap premium.
  4. Check your OEP. If possible, wait until your Medigap Open Enrollment Period to buy a policy when it’s guaranteed to be issued.

Looking for a Medigap plan to protect your health and save money?

We can help. Call HealthMarkets at (844) 522-1422 for more information, or find a local licensed insurance agent today.

1. What’s Medicare Supplement Insurance (Medigap)? (2023). Retrieved from: https://www.medicare.gov/health-drug-plans/medigap Accessed on July 14, 2023.

2. Compare Medigap Plan Benefits. (2023). Retrieved from: https://www.medicare.gov/health-drug-plans/medigap/basics/compare-plan-benefits Accessed on July 14, 2023.

3. Choosing a Medigap Policy. (2023). Retrieved from: https://www.medicare.gov/publications/02110-medigap-guide-health-insurance.pdf Accessed on July 14, 2023.

4. When can I buy a Medigap policy? (2023). Retrieved from: https://www.medicare.gov/health-drug-plans/medigap/ready-to-buy/ Accessed on July 14, 2023.

5. Get Medigap Basics. (2023). Retrieved from: https://www.medicare.gov/health-drug-plans/medigap/basics Accessed on July 14, 2023.

6. Get ready to buy: Your Medigap Open Enrollment Period. (2023). Retrieved from: https://www.medicare.gov/health-drug-plans/medigap/ready-to-buy Accessed on July 14, 2023.

7. Fact Sheet: Deciding Whether to Enroll in Medicare Part A and Part B When You Turn 65. (2023). Retrieved from: hhttps://www.cms.gov/Outreach-and-Education/Find-Your-Provider-Type/Employers-and-Unions/FS3-Enroll-in-Part-A-and-B.pdf Accessed on July 28, 2023.

8. 3 Ways to Avoid Being Rejected or Overcharged for a Medigap Policy. (2021). Retrieved from: https://www.aarp.org/health/health-insurance/info-2021/avoid-medigap-mistakes.html Accessed on July 28, 2023.

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We do not offer every plan available in your area. Any information we provide is limited to those plans we do offer in your area. Please contact Medicare.gov, 1-800-MEDICARE, or your local State Health Insurance Program to get information on all of your options.