Nevada Medigap Birthday Rule: How It Works in 2026
Nevada Medicare Supplement policyholders have an annual opportunity around their birthday to shop for certain Medigap coverage without medical underwriting. Here's what the Nevada Birthday Rule does—and what it doesn't do.
If you already have a Medicare Supplement policy and live in Nevada, state law gives you an annual open enrollment period beginning on the first day of your birthday month and lasting at least 60 days. During that window, you can switch to an available Medicare Supplement policy with the same or lesser benefits without being denied or charged more because of your health status or claims history.
Medicare Supplement insurance—usually called Medigap—can help pay some of the deductibles, coinsurance and other out-of-pocket costs left by Original Medicare.
One of the challenges with Medigap is that the broad federal protection people receive when they first become eligible doesn't necessarily continue indefinitely.
Nevada provides an additional protection for people who already have Medicare Supplement coverage: the state's Medigap Birthday Rule.
What is Nevada's Medigap Birthday Rule?
Nevada law requires insurers that issue Medicare Supplement policies to provide existing Medigap policyholders with an annual open enrollment period.
Nevada's rule at a glance
- The window begins on the first day of your birthday month.
- It remains open for at least 60 days.
- You must already be insured under a Medicare Supplement policy.
- You can apply for an available Medicare Supplement policy with the same or lesser benefits.
- The insurer cannot use your health status, medical condition, healthcare use or claims experience to deny or condition eligible coverage during this window.
Suppose your birthday is August 18. Your Nevada Birthday Rule period begins August 1—not August 18—and continues for at least 60 days.
That creates an annual opportunity to review eligible Medicare Supplement alternatives even if your health has changed since you originally purchased your Medigap policy.
Why does this rule matter?
When you first become eligible for Medigap, federal law provides an important one-time Medigap Open Enrollment Period.
That federal period generally lasts six months beginning with the first month you're both 65 or older and enrolled in Medicare Part B. During it, an insurer can't deny you a Medigap policy because of pre-existing health problems.
After that initial enrollment opportunity ends, federal law does not generally guarantee that you'll always be able to change Medigap policies without underwriting. Certain guaranteed-issue situations provide additional protections, but they apply only in particular circumstances.
Nevada's Birthday Rule gives people who already have Medigap another annual opportunity to shop within the limits of the state rule.
Is the Birthday Rule the same as Medicare Open Enrollment?
No. These are different enrollment periods, and the terminology can easily cause confusion.
| Enrollment Period | Generally Applies To | Timing |
|---|---|---|
| Medigap Open Enrollment | Your initial federally protected opportunity to purchase Medigap | Generally 6 months beginning when you're 65+ and enrolled in Part B |
| Nevada Medigap Birthday Rule | Nevada residents who already have qualifying Medicare Supplement coverage | Starts first day of birthday month and lasts at least 60 days |
| Medicare Open Enrollment | Medicare Advantage and Medicare prescription drug coverage changes | October 15–December 7 annually |
Important: The October 15–December 7 Medicare Open Enrollment Period does not create a universal right to purchase any Medigap policy without medical underwriting. Medigap has its own enrollment and guaranteed-issue rules.
Can I switch from any Medigap plan to any other plan?
Not under Nevada's Birthday Rule.
The state protection applies to Medicare Supplement coverage with the same or lesser benefits than the policy you currently have. It should not be interpreted as an annual guaranteed opportunity to upgrade to any Medigap plan you want.
Nevada law also specifies that certain "innovative benefits" aren't used when determining whether one standardized Medicare Supplement policy has the same or lesser benefits than another.
Can I change insurance companies?
The Birthday Rule is not simply an annual renewal period with your current company. Nevada's law requires Medicare Supplement insurers to make eligible policies available during the protected period, subject to the same-or-lesser-benefit limitation and other applicable requirements.
That can make the Birthday Rule particularly useful for someone who likes their standardized Medigap benefits but wants to see whether another available policy may better fit their situation.
Can an insurer deny me because of my health?
During an eligible Nevada Birthday Rule enrollment, the insurer cannot deny or condition issuance, or discriminate in the price of coverage, based on factors such as health status, claims experience, receipt of healthcare or medical condition.
That protection is one of the primary reasons the Birthday Rule matters. Outside a protected enrollment or guaranteed-issue situation, changing Medigap coverage can be more complicated.
Does the Birthday Rule mean my premium won't increase?
No.
The rule protects against health-based treatment when using the Birthday Rule to obtain eligible replacement coverage. It does not mean Medicare Supplement premiums can never change.
Premiums can vary among insurance companies even when the standardized Medigap benefits are the same, and rates can change over time subject to applicable law and regulatory requirements.
Are Medigap benefits standardized?
Yes. Medicare Supplement policies are generally standardized by letter. That means the basic benefits of a particular standardized plan are the same regardless of which insurance company sells the policy.
For example, the standardized benefits of one company's Plan G are generally the same as another company's Plan G. The premium and certain company-specific characteristics can differ.
This standardization is one reason it can make sense to periodically review your existing coverage rather than assuming that the company you originally selected will always remain the best fit.
Does the Birthday Rule apply if I have Medicare Advantage?
No. Medicare Supplement insurance and Medicare Advantage are different types of coverage.
You cannot use a Medigap policy to supplement a Medicare Advantage plan. The Nevada Birthday Rule is designed for people who already have Medicare Supplement coverage.
If you're considering leaving Medicare Advantage for Original Medicare and adding Medigap, different enrollment and guaranteed-issue rules may apply.
What should I compare during my birthday window?
If you already have Medigap coverage, your birthday window is a useful time for an annual review.
Consider reviewing:
- Your current standardized Medigap plan
- Your current monthly premium
- How much your premium has changed
- Other eligible policies available in Nevada
- Whether the alternative provides the same or lesser benefits required by the Birthday Rule
- The insurer's pricing and applicable rate structure
Don't cancel your existing Medigap policy merely because you've submitted an application for another one. Make sure you understand when the new coverage becomes effective and how the transition should be handled.
What if I miss my Nevada Birthday Rule window?
Missing the Birthday Rule period doesn't necessarily mean you're permanently unable to change coverage.
However, the special Nevada protection associated with that annual window will no longer apply for that year's birthday period. Your options can then depend on your circumstances, the insurer's underwriting rules and whether another guaranteed-issue protection applies.
Your next Nevada Birthday Rule opportunity generally arrives with your next birthday month if you remain eligible.
The bottom line
Nevada's Medigap Birthday Rule gives existing Medicare Supplement policyholders something valuable: an annual opportunity to reconsider their coverage without their health becoming the obstacle it might otherwise be.
The most important points to remember are simple:
- Your window starts on the first day of your birthday month.
- It lasts for at least 60 days.
- You need to already have Medicare Supplement coverage.
- The protected switch is generally limited to coverage with the same or lesser benefits.
- It is not the same thing as Medicare's annual October 15–December 7 Open Enrollment Period.
Is your Medigap birthday window approaching?
If you already have Medicare Supplement coverage and want to understand what options may be available during your Nevada birthday window, tell us a little about what you're trying to accomplish.
You don't need to provide your Medicare number, Social Security number, medical history or other sensitive information through this form.
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Important: NevadaHealthPlans.com provides general educational information and is not currently acting as a licensed insurance agency. This website is not connected with or endorsed by the U.S. government or the federal Medicare program. Medicare and Nevada insurance rules can change, and individual circumstances vary. Verify current eligibility, enrollment rights, premiums and policy information with Medicare, the Nevada Division of Insurance, the applicable insurer and an appropriately licensed insurance professional before changing coverage.