Medigap plans in Wisconsin
We track the rules that matter when you compare or switch Medigap plans in Wisconsin: how premiums are rated, whether the state adds switching protections on top of the federal baseline, and whether carriers must sell to people under 65.
In Wisconsin, Medigap follows the federal baseline. After your 6-month Medigap Open Enrollment Period, carriers can use medical underwriting unless a federal guaranteed-issue right applies.
Wisconsin Medigap rules at a glance
| Standardized plans | Wisconsin uses a state-specific Basic plan with optional riders instead of the federal Plan A-N letters. |
|---|---|
| Rating method | Attained-age rated |
| State switching rule | Federal baseline only |
| Under-65 access | State mandates carrier access |
Source: NAIC Medicare Supplement Insurance Model Regulation (#651) and the Wisconsin Department of Insurance. Always confirm current rules with your state DOI or SHIP before applying.
How pricing works in Wisconsin
Most carriers in this state use attained-age rating, so premiums rise as you get older. Issue-age and community-rated policies may also be offered.
A community-rated plan charges the same monthly premium regardless of age. Issue-age plans lock your premium based on the age you bought in. Attained-age plans start lower in your 60s and rise as you get older. Over a 20-year horizon, the rating method usually matters more than the plan letter.
Switching Medigap plans in Wisconsin
Federal law gives you a 6-month Medigap Open Enrollment Period that starts the month your Part B begins. During that window any Medigap carrier in Wisconsin must sell to you with no medical underwriting. After it closes, federal guaranteed-issue rights only trigger in specific situations (for example, when your employer plan ends or a Medicare Advantage plan leaves your area).
Wisconsin does not currently add a state-level birthday or anniversary rule. If you want to switch outside a federal guaranteed-issue right, expect underwriting.
We walk through the federal switching mechanics in our guide on leaving Medicare Advantage, and compare the most popular Medigap plan letters in Plan G vs Plan N.
People under 65 in Wisconsin
Wisconsin requires Medigap availability for people under 65 on Medicare.
See our overview of Medicare on disability for how the 24-month waiting period and SSDI interact with state Medigap rules.
Frequently asked questions
- What Medigap plans are sold in Wisconsin?
- Wisconsin uses a state-specific Medigap structure rather than the federal Plan A through Plan N letters. Wisconsin uses a state-specific Basic plan with optional riders instead of the federal Plan A-N letters.
- Can I switch Medigap plans in Wisconsin without medical underwriting?
- Wisconsin follows the federal baseline. Outside of your Medigap Open Enrollment Period or a federal guaranteed-issue right, carriers can use medical underwriting.
- How are Medigap premiums priced in Wisconsin?
- Most carriers in this state use attained-age rating, so premiums rise as you get older. Issue-age and community-rated policies may also be offered.
- Can people under 65 buy Medigap in Wisconsin?
- Wisconsin requires Medigap availability for people under 65 on Medicare.
Compare other states
Related guides
Confirm your Medigap window in Wisconsin
Your 6-month Medigap Open Enrollment Period is tied to your Part B effective date. We'll calculate it from your date of birth.
Educational resource. Not legal, tax, or insurance advice. Always confirm specifics with Medicare.gov, your State Health Insurance Assistance Program, or the Wisconsin Department of Insurance.