At 68, They Will Try to Leave Advantage Together. The Medigap Insurer Will Say Yes to Her and No to Him. There Is No Family Policy, and His Denial Could Cost Her the Household Discount

They are both 68. They have shared the same Medicare Advantage plan for years, and this fall they decide to leave it on the same day. The network keeps shrinking, prior authorizations keep piling up, and Original Medicare with a Medigap supplement looks like the steadier path into their 70s. So they fill out two Medigap applications at the kitchen table and mail them together.

The answers that come back may not match. She gets approved. He gets turned down, or he gets offered a price well above hers. Medigap is individual insurance, not family coverage, so the insurer reviews each health history by itself.

Couples applying during their six-month Medigap open enrollment period, or while they have another guaranteed-issue right, do not face medical underwriting. The problem hits couples who leave Advantage by choice years later, especially when one partner has a diagnosis an insurer may flag.

One Marriage, Two Medigap Applications

Medicare requires each spouse to buy a separate Medigap policy. No couples plan or family rider exists. Outside a Medigap open enrollment period or a guaranteed-issue right, insurers in most states may medically underwrite each applicant separately, which means questions about recent diagnoses, prescriptions, hospital stays and planned procedures.

To the household, the result looks random. Her clean history wins an approval at standard rates. His heart condition, diabetes medication or recent surgery brings a higher premium or an outright denial. They share an address, an income and the plan they just left, and they still get two different answers.

Advantage Pullbacks Are Pushing More Couples Into This Decision

This year the timing raises the stakes. Insurers are cutting traditional Medicare Advantage plans and broader-network options in many markets for 2027. And a KFF analysis published this week found that 74% of Medicare Advantage enrollees, or 20.9 million people in 2023, had a preexisting condition that could lead to a Medigap denial if they tried to switch outside a protected window.

When a plan leaves your area or ends your coverage, you usually get a guaranteed-issue right, which forces Medigap insurers to sell you a policy whatever your health. When a plan only narrows its network, raises copays or drops your heart specialist, you usually get no such right. Leaving out of frustration counts as a voluntary exit, and a voluntary move out of Advantage does not automatically create a Medigap guarantee.

Before either partner disenrolls, check three things for each of you separately. First, did the plan send a nonrenewal or service-area exit notice? Second, does a Medigap trial right still protect either partner? That right covers some people who tried Advantage only recently.

Third, does your state go further than federal law? KFF reports that many states provide broader guaranteed issue protections than minimum federal standards. One partner may hold a protection the other lacks.

Household Discounts Follow Carrier Rules That Can Shift Under You

Some carriers discount premiums when spouses or household members both enroll, but the amount and the eligibility rules vary by insurer and by state. Some carriers require two policyholders at the same company. Others look at who lives in the home.

His denial can also raise her costs. If the carrier’s household discount depends on both spouses enrolling, the premium she was quoted with the discount may rise when his application is rejected. Before you sign, ask the carrier in writing what her premium becomes if he is turned down.

Plan for the Household Before Anyone Drops Advantage

Get both underwriting answers before either spouse drops Advantage. Many carriers accept applications ahead of the effective date you request, so you can hold a decision in hand while your current coverage still runs.

If underwriting splits you, run the real comparison. Compare the approved spouse’s Medigap and Part D cost against the other spouse’s best remaining Advantage option. For him, look past the premium to the plan’s in-network out-of-pocket maximum, whether his specialists stay in network, and how often it requires prior authorization for the care he actually uses. If his health causes the denial, the household may end up using two different systems. Medicare Advantage does not use Medigap-style medical underwriting, so he can still compare the plans available to him during an eligible enrollment period.

If one carrier turns him down, apply to others. Insurers set their own underwriting standards, and one company’s decline does not bind the next.

Decide Both Answers Before Open Enrollment Closes

Medicare lets a married couple make this move together. Medigap can underwrite them as two separate applicants. Annual open enrollment begins October 15, and Advantage changes made during it take effect January 1. Treat her approval and his application as two separate decisions, and do not let either spouse’s Advantage coverage end until that spouse knows whether Medigap is approved and the replacement coverage is lined up. One spouse’s approval does not protect the other, and a poorly timed switch can leave the denied spouse in Original Medicare without the supplement they expected.

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