Which type of health plan does NOT coordinate with Medicare?

Marketplace health plans are specifically designed for individuals and families seeking coverage through the health insurance marketplace established under the Affordable Care Act (ACA). These plans do not coordinate with Medicare as they primarily serve those who are not eligible for Medicare or who choose to opt out of it.

In contrast, other types of plans like COBRA, Employer plans, and Short-Term Health Insurance may have provisions that account for the coordination of benefits with Medicare. For example, COBRA allows individuals to continue their employer-sponsored coverage, which may provide coordination of benefits if the individual is eligible for Medicare. Similarly, Employer plans are often designed to work in conjunction with Medicare when employees transition to retirement and become eligible for Medicare. Short-term health insurance may also provide limited coordination depending on the terms of the policy.

In summary, Marketplace health plans exist outside the realm of Medicare eligibility and coordination, making them the type of health plan that does not interact with Medicare benefits.