Final answer:
Not all Medicare Advantage Prescription Drug (MAPD) plans are network-based; although many are, such as HMOs or PPOs, plans like PFFS do not require network providers.
Step-by-step explanation:
The statement 'All MAPD plans are network-based' is false. Medicare Advantage Prescription Drug (MAPD) plans are a type of Medicare Advantage plan that includes prescription drug coverage. While many MAPD plans are network-based, such as HMOs (Health Maintenance Organizations) or PPOs (Preferred Provider Organizations), not all of them require you to use a network of providers.
For instance, Private Fee-for-Service (PFFS) plans may not require you to go to a network provider, and you can typically see any provider that accepts the plan's payment terms. It's important to understand the type of plan and its requirements before enrolling.