Medicare Supplement vs. Medicare Advantage in Illinois
The biggest Medicare decision for Illinois residents is whether to pair Original Medicare with a Medigap plan or to enroll in Medicare Advantage. Each path serves different priorities:
| Feature | Medigap (Plan G/N) | Medicare Advantage |
|---|---|---|
| Provider freedom | Any provider in U.S. | Plan network only |
| Travel coverage | Nationwide | Limited / emergency only |
| Monthly premium | $110 – $200 (Plan G, age 65) | Often $0 |
| Prior authorization | No | Yes, common |
| Drug coverage | Separate Part D | Usually bundled |
| Dental, vision, hearing | Not included | Usually bundled |
Medigap Plans Available in Illinois
- Plan G — most comprehensive plan available to those new to Medicare. Covers everything except the Part B deductible (~$257/yr).
- Plan N — lower premium, small copays ($20 office / $50 ER), no Part B excess charge coverage.
- Plan F — covers Plan G + Part B deductible. Closed to new enrollees after Jan 1, 2020.
- High-deductible Plans G and F — lower premiums, federally set annual deductible (~$2,870 in 2026).
📍 Illinois Medigap Rule
Illinois is a birthday rule state. Once a year, around your policy's birthday, you can switch to a same-letter or lesser-benefit Medigap plan with no medical underwriting. This is in addition to the federal 6-month Open Enrollment.
Top Illinois Cities We Serve
Our licensed independent Medicare agents serve every ZIP code in Illinois:
Major Medigap Carriers in Illinois
Carriers commonly serving Illinois include AARP/UnitedHealthcare, Mutual of Omaha, Cigna, Aetna, Humana, Blue Cross Blue Shield, Anthem, and regional state-specific carriers. We compare every carrier available in your Illinois ZIP code on premium, rate-increase history, and customer service ratings — benefits are federally standardized, so price is the differentiator.
Medicare Part D Prescription Coverage in Illinois
Medigap plans never include prescription drug coverage. We run your prescription list against every Part D plan available in your Illinois ZIP code on Medicare.gov's official tool to find the lowest total annual cost.
How We Help Illinois Residents
Calling a single carrier's 1-800 number gets you their plan, and only their plan. Our network of licensed independent agents represents every major carrier in Illinois, including local and regional carriers that often beat national brands on price for the exact same federally standardized benefits. Carriers each pay agents the same commission, so we have no incentive to push one over another. Our consultations are free, no obligation, and your monthly premium is identical whether you enroll through us or directly.
Related: general Medigap guide, health insurance for under-65, life insurance. Sister sites: InsureClicks Illinois Medigap, MyInsuranceRates Illinois.