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Best Medicare Supplement Plans in Illinois

Medicare Supplement plans in Illinois, also called Medigap, help pay for deductibles and coinsurance that Original Medicare doesn’t cover.

Many people assume that the Medicare benefits from Original Medicare Part A and Medicare Part B are sufficient for reducing their out of pocket costs for healthcare.  However, they are later surprised by deductibles, copayments, cost-share percentages and other out-of-pocket expenses. A Medicare Supplement plan in Illinois can give you peace of mind while improving the quality of medical care that you receive in years to come.

Medicare Supplement plans in Illinois summary:

  • Private insurance companies sell Medicare Supplement plans.
  • Medigap insurance fills in gaps like copayments, coinsurance, and deductibles not covered by Original Medicare.
  • Standardized Medigap policies are guaranteed renewable even if there are health issues.
  • Eligibility for Medigap plans in Illinois comes after enrollment in Medicare Part A and Medicare Part B.
Find Plans in Your Area

Which plan is best for you depends on your health care needs, medical expenses, and financial capabilities.

Here’s a look at how the top five plans compare:

Medicare Supplement Plan F: Best Full Coverage

Medicare Plan F has the most comprehensive coverage because it includes:

  • All copayments
  • Medicare Part A deductible
  • Medicare Part B deductible
  • All coinsurance

For eligibility, you must have been enrolled in Original Medicare before January 1, 2020.

Medicare Supplement Plan G: Best Comprehensive Coverage

For Medicare beneficiaries who enrolled in Medicare after January 1, 2020, Medicare Plan G offers the most comprehensive coverage of all Medicare Supplement plans in Illinois.

Plan G also offers cost savings for anyone who is eligible for Plan F too.

Medicare Supplement Plan N: Best Value

Medigap Plan N offers:

  • Economical monthly premiums in exchange for rich benefits. You should compare the benefits you get with Plan N to what other plans offer to ensure that the lower monthly premiums are worth it.
  • 100 percent of Medicare Part B coinsurance apart from outpatient copays up to $20.00 and emergency room copays of $50.00 unless the patient is admitted.

High-deductible Plan F: Best Deductible Plan

This Medicare Supplement plan has the same coverage as standard Plan F but has an annual deductible of $2,490.00. Beneficiaries must meet this amount before coverage begins. Premiums are lower than the standard Plan F.

High-deductible Medicare Plan G: Best for Lowest Premiums

High-deductible Plan G requires beneficiaries to meet an annual deductible of $2,490.00 before coverage begins. Premiums are lower than the standard Plan G.

Top Medicare Supplement Insurance companies in Illinois

1. Cigna – For a Medigap plan in Illinois, this company is trusted by many and is very knowledgeable about the Medicare enrollment process. Cigna has over 165 million customers and is well established.

2. Aetna – As one of the largest insurance companies, Aetna has extensive extra benefits along with more $0 premium Medicare Advantage plans for their customers.

3. Mutual of Omaha – MOH is known for customer satisfaction and is considered financially stable for their customers. Also, they have local agents you can visit in person if needed.

Medicare Supplement Insurance prices in Illinois

Pricing for Medigap policies in Illinois varies between the counties, plan types, insurers, and how they price the plan. Private health insurance companies use either community, issue-age, or attained-age rating systems.

65-Year Old Female Non-tobacco
Plan Type Premium Range
Plan G$97.90 - $229.16
Plan N$87.98 - $190.39

When can I apply for a Medicare Supplement plan?

During the Medigap Open Enrollment Period

If you are 65 or older

For those aging into Medicare, eligibility for enrollment in a Medicare Supplement insurance plan in Illinois begins on the month you enroll in Medicare Part B (whether at 65 or older), and lasts for six months. If you receive Social Security retirement benefits at age 65, you are automatically enrolled in Medicare.

In Illinois, the Medigap Open Enrollment Period (OEP) is the optimum time to enroll in Medigap because you must be accepted even if you have pre-existing conditions.

If you are younger than 65

The Federal Medicare program doesn’t require a Medicare insurance company to sell Medigap plans to those who are under the age of 65. However, in Illinois, those under 65 receiving Medicare because of disability can purchase Medicare Supplement insurance during the Open Enrollment Period. They also get another six-month Open Enrollment Period when they reach Medicare eligibility at age 65.

If you get notification of eligibility retroactively, your six-month OEP begins on the day that you are notified.

Outside OEP with Guaranteed Issue Rights

In Illinois, if you have guaranteed issue rights, you can purchase Medicare Supplement insurance. You may have guaranteed issue rights if you have other health coverage that changes – through an employer or other circumstances.

Because of these rights, private health insurance companies are required by law to do the following:

  • Sell Medigap insurance policies to anyone who is eligible regardless of pre-existing conditions
  • Cover all pre-existing health conditions for eligible enrollees
  • NOT charge more for the plan because of past or present health conditions

The Annual Election Period (AEP)

The AEP goes from October 15 to December 7. During this enrollment period, Medicare beneficiaries can get Medicare coverage through Medicare Advantage or Medicare Part D plans (prescription drug plans). The AEP does not apply to Medicare Supplement plans.


When can I change Medigap plans?

If you want to switch from one Medigap plan to another, technically you can do so at any time. However, you may be subject to medical underwriting if you switch plans outside your Medigap Open Enrollment Period. Switching plans during OEP protects you from underwriting.

The effective date for your new policy is the first day of the month following the switch.

Can I be denied Medigap coverage?

If you enroll in a Medicare Supplement insurance policy during your Open Enrollment Period, or if you have guaranteed issue rights, you can enroll in any Medigap plan in Illinois without undergoing medical underwriting. This means you cannot be denied coverage during these enrollment periods no matter what your health status is.

Related Topics

Ready to learn more?

We help educate Medicare beneficiaries on their Medigap options and help them go through the process of reviewing and comparing plans. We work with most of the nations top-rated Medigap carriers such as AetnaCignaMutual of Omaha and Florida Blue Medicare plans. Give us a call today, or request a quote online to learn more about Aetna Medicare Supplement plan G and Mutual of Omaha Medicare Supplement plan G in your state. We educate you on the best Medicare Plans for your situation, then let you decide.

Illinois State Links

Illinois Medicare Resources

Key Take Aways
  • A Medicare Supplement plan in Illinois can give you peace of mind while improving the quality of medical care that you receive in years to come.
  • There are 10 Medicare Supplement Plans in Illinois to choose from.
  • In Illinois, Medicare Supplement Plan G is the most popular plan for 2022.