Aetna Medicare Supplement Plans in Illinois
Aetna sells Medicare Supplement (Medigap) insurance in Illinois through Aetna Health Insurance Company. Here is which plans it offers, what each one covers, and how to compare it with other Illinois carriers before you enroll.
Aetna Medicare Supplement plans sold in Illinois
These are the plans Aetna Health Insurance Company is listed as selling in Illinois. Every plan with the same letter has the same federal benefits no matter which company sells it, so the real differences are price, rating method and service.
| Plan | What it covers |
|---|---|
| Plan A | The basic benefits only: Part A coinsurance and hospital costs for up to 365 extra days, Part B coinsurance or copayment, the first 3 pints of blood, and hospice coinsurance. It does not pay any Medicare deductible. |
| Plan B | Everything in Plan A, plus the Part A deductible. |
| Plan F | The most complete lettered plan: it pays the Part A and Part B deductibles, Part B excess charges, skilled nursing coinsurance and foreign travel emergency costs. Only available if you became eligible for Medicare before January 1, 2020. |
| Plan G | Nearly identical to Plan F except it does not pay the Part B deductible. It does pay Part B excess charges. It is the plan most new Medicare enrollees choose. |
| High-deductible Plan G | The high-deductible version of Plan G. You pay a yearly deductible first ($2,950 in 2026), then the plan pays 100% of covered costs. |
| Plan N | Pays most of the same costs as Plan G, but you pay copays of up to $20 for some office visits and up to $50 for emergency room visits that do not result in admission. It does not pay the Part B deductible or excess charges. |
Source: Medicare.gov Medigap policy search (checked October 7, 2026, across five ZIP codes in the state). Company plan lists can change; confirm current availability and your exact rate before you apply.
Before you enroll
Use your open enrollment window
Your Medigap open enrollment period lasts 6 months, starting the first month you are 65 or older and enrolled in Medicare Part B. During it, a company cannot deny you coverage or charge you more because of your health. After it, you may face medical underwriting.
Compare more than one carrier
The same benefits cost different amounts at different companies, and companies price by age, ZIP code and household differently. Always compare at least two or three.
Compare other Illinois Medicare resources
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 state's SHIP (free Medicare counseling) to get information on all of your options. Aetna is a trademark of its owner. This page is informational and is not connected with or endorsed by the U.S. government or the federal Medicare program.