For which of the following reasons might someone lose their Medicare Advantage coverage?

Losing Medicare Advantage coverage can occur for various reasons, and not paying the premium is a crucial factor. Medicare Advantage plans typically require a monthly premium, which can vary by plan. If a beneficiary fails to pay this premium, the insurance provider has the authority to terminate their coverage. This is because the premium is essential for maintaining the agreement that allows beneficiaries to receive health services under the Medicare Advantage plan.

In contrast, choosing a different primary care provider typically does not result in loss of coverage, as beneficiaries often have the flexibility to select providers within their plan's network. Having a chronic illness does not affect coverage, as Medicare Advantage is designed to provide care to those with ongoing health needs. Being eligible for additional health coverage, while it may complicate the beneficiary's decisions regarding their healthcare options, does not inherently lead to the loss of Medicare Advantage coverage. Therefore, not paying the premium is the clear reason a beneficiary might lose their Medicare Advantage plan.