Founder and CEO of Texas Medicare Advisors - Medicare Expert | Guides clients of financial advisors into Medicare | And referral Partner for Insurance Professionals, CPA's & HR Directors
- Jason Fisher
- Jason Fisher
- Jason Fisher
- Jason Fisher
Why AEP Does Not Guarantee Medigap Approval in Texas
The most persistent myth surrounding the Medicare Annual Enrollment Period is the belief that seniors can freely swap their Medicare Supplement plans without facing health questions. Many beneficiaries watch endless television commercials every fall advertising new Medicare plans and incorrectly assume these rules apply to their Medigap coverage. As detailed in our pillar guide, 2026 Medicare AEP in Texas: The Complete Guide, the window from October 15 to December 7 is legally restricted to Medicare Advantage and prescription drug plans. For Texas seniors holding a Medigap policy, the fall season does not offer any special protections or guaranteed issue rights to change carriers.
A major point of confusion stems from the fact that certain states across the country have implemented what is known as a “birthday rule” or a state-specific annual open enrollment period for Medigap. In states like California or Illinois, residents are legally permitted to switch their Medigap policies to a plan of equal or lesser value around their birthday every single year without undergoing medical underwriting. Texas is not one of these states. The Texas Department of Insurance does not mandate an annual birthday rule for Medicare Supplements. Once your initial six-month Medigap open enrollment window closes—a window that starts the month you are 65 or older and enrolled in Medicare Part B—you are subject to the standard rules of the insurance market for the rest of your life. Relying on the fall Annual Enrollment Period to bail you out of expensive Medigap premiums is a dangerous strategy that leaves many seniors stuck in plans they can no longer afford because their declining health prevents them from moving to a cheaper carrier.
Navigating Medical Underwriting to Change Your Supplement
When you attempt to switch your Medigap plan in Texas outside of your initial six-month window, you must pass a process known as medical underwriting. This means the insurance company evaluates your current health status and medical history to determine how much of a financial risk you pose. The application for a new Medigap policy contains a stringent list of health questions that you must answer honestly. These questions typically inquire about recent hospitalizations, current treatments for cancer, history of heart attacks, stroke, or degenerative diseases like Parkinson’s or Alzheimer’s. If you answer “yes” to any of the knockout questions on the application, the insurance carrier will automatically decline your request for coverage.
The underwriting process goes far beyond merely trusting your answers on a paper application. Insurance carriers will pull your prescription drug history from national databases to verify the medications you are currently taking. If they see prescriptions that indicate a severe underlying health condition that you failed to disclose, they will reject your application. They may also request attending physician statements, which require your local Texas doctors to submit your medical records for review. Because this process is rigorous, it is absolutely vital that you never cancel your current Medigap policy until you have received formal, written approval and a policy issue date from the new insurance company. Dropping your current coverage prematurely in anticipation of being approved for a cheaper plan can leave you entirely uninsured for your supplemental medical costs if the new carrier ultimately denies your application.
Guaranteed Issue and Trial Rights for Texas Seniors
While standard medical underwriting is the rule in Texas, there are very specific, legally protected scenarios where you can bypass health questions. These scenarios grant you a Guaranteed Issue right. The most common situation occurs when a senior loses their group employer health coverage through no fault of their own, granting them a strict 63-day window to purchase certain Medigap plans without underwriting. Another common trigger happens if you move entirely out of your Medicare Advantage plan’s service area, such as relocating from Dallas to another state, which forces your plan to drop you and gives you a window to buy a Medigap policy without health questions.
One of the most powerful but misunderstood protections is the Medicare Advantage Trial Right. This federal rule serves as a safety net for seniors wanting to test out the network restrictions discussed in our guide to 2026 Texas Medicare Advantage and Network Changes. If you are turning 65 and enroll in a Medicare Advantage plan right out of the gate, you have a 12-month trial period. If you decide you dislike the Advantage plan within that first year, you can drop it, return to Original Medicare, and buy any Medigap plan sold in Texas with zero medical underwriting. Similarly, if you have been on a Medigap plan for years and decide to drop it to try a Medicare Advantage plan for the very first time, you also get a 12-month trial right. If the new Advantage plan does not meet your expectations, you have the legal right within that first year to drop it and return to your previous Medigap policy, or a similar one, with no health questions asked. You must act strictly within that 12-month window, or this trial right vanishes forever.