Best Medicare Supplement Plan G Rates in Illinois (2026)
Plan G covers everything except the $257 Part B deductible. Compare rates from 30+ carriers in Illinois to find the lowest premium.
Lowest Rate
$113/mo
Average Rate
$151/mo
Carriers
30+
What Does Plan G Cover?
Plan G is federally standardized, meaning every carrier offers identical coverage. The only out-of-pocket cost is the annual Part B deductible.
Bottom line: After paying the $257 Part B deductible once per year, Plan G and Medicare together cover 100% of Medicare-approved costs for the rest of the year. No copays, no coinsurance, no surprise bills.
Plan G Rate Comparison - Illinois Carriers
Rates shown are typical monthly premiums for a 65-year-old female non-smoker. Your rate may vary by age, gender, zip code, and tobacco use.
| # | Carrier | Plan G Monthly | AM Best | Discounts | Score |
|---|---|---|---|---|---|
| 1 | HealthSpring (formerly Cigna) Lowest Rate | $118/mo | A | Household discount, annual payment discount | 4.5 |
| 2 | Wellabe | $124/mo | A- | Household discount available | 4.2 |
| 3 | AARP/UnitedHealthcare | $138/mo | A+ | Household, payment mode, and loyalty discounts | 4.7 |
| 4 | Mutual of Omaha | $177/mo | A+ | Household discount (up to 12%), annual payment discount | 4.4 |
| 5 | State Farm | $197/mo | A++ | Household discount available | 4.9 |
Premiums are based on publicly available rate filings and may not reflect the exact rate in your zip code. Always request a personalized quote for accurate pricing.
See Plan G Rates in Your ZIP Code
Rates vary significantly by location. Enter your zip code to see what carriers charge for Plan G in your area of Illinois.
Compare Plan G RatesHow to Find the Cheapest Plan G in Illinois
Because every Plan G policy covers the same benefits regardless of the carrier, the only variable that matters when choosing a plan is the premium. Finding the lowest rate requires understanding how carriers price their policies and which discounts are available.
Pricing Methods in Illinois
Most carriers in Illinois use attained-age pricing, which means your premium increases as you get older. This is the most common method nationwide. A few key things to know:
- - Premiums are lowest when you first enroll (typically at age 65)
- - Rates increase annually based on your age plus medical inflation
- - The carrier with the lowest rate at 65 may not be the lowest at 75
- - Rate increase history matters more than the starting premium
Discounts That Lower Your Premium
Plan G vs. Plan N in Illinois: Which Saves You More?
Plan N is the most common alternative to Plan G. It has lower premiums but introduces copays and does not cover Part B excess charges.
| Feature | Plan G | Plan N |
|---|---|---|
| Part B deductible | Not covered | Not covered |
| Part B coinsurance | 100% covered | 100% covered (with copays) |
| Office visit copay | None | Up to $20 |
| ER copay (not admitted) | None | Up to $50 |
| Part B excess charges | 100% covered | Not covered |
| Avg. monthly premium (FL) | $151/mo | $107/mo |
| Best for | Predictable costs, no surprises | Lower premiums, fewer doctor visits |
Illinois Medigap Rules You Need to Know
Open Enrollment Period
Your Medigap open enrollment period lasts 6 months, starting the month you turn 65 and are enrolled in Medicare Part B. During this window, no carrier can deny you or charge more based on health conditions. This is your best opportunity to lock in coverage.
Birthday Rule (45 Days, Ages 65-75)
Illinois has a limited birthday rule for policyholders aged 65-75. Each year, starting on your birthday, you have 45 days to switch to a plan with equal or lesser benefits from your current insurer or its authorized affiliates without medical underwriting. Note: unlike California, you cannot switch to a completely different carrier using this rule.
Guaranteed Issue Rights
Federal law provides guaranteed issue rights in specific situations, such as when your Medicare Advantage plan leaves your area, your employer group coverage ends, or your current Medigap carrier goes bankrupt. In these cases, carriers must accept you without health questions.
Free Look Period Free Look Period & SHINE SHIP
Illinois provides a 30 days free look period after purchasing a Medigap policy. If you are not satisfied, you can cancel for a full refund. Illinois also offers the Illinois SHIP program (State Health Insurance Assistance Program), which provides free, unbiased Medicare counseling.
How to Enroll in Plan G in Illinois
Confirm you have Medicare Part A and Part B
You must be enrolled in both Medicare Part A and Part B before you can purchase a Medigap plan. If you are turning 65, make sure your Part B enrollment is active.
Compare rates from multiple carriers
Since every Plan G covers the same benefits, the only difference is the premium. Compare quotes from at least 3-5 carriers in your Illinois zip code to find the best rate.
Apply during your open enrollment period
Your 6-month Medigap open enrollment period is your best window. During this time, carriers must accept you at standard rates regardless of health conditions.
Review your policy during the 30 days free look period
After your policy starts, you have 30 days to review it. If you are not satisfied for any reason, you can cancel for a full refund of premiums paid.
Frequently Asked Questions: Plan G in Illinois
Find the Lowest Plan G Rate in Your Area
The same Plan G can cost 50% more from one carrier to another in the same zip code. Compare rates from 30+ carriers in Illinois to make sure you are not overpaying.
Compare Plan G RatesOr call (888) 441-0465 to speak with a licensed agent