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Medicare glossary

Understand what common Medicare terms mean

As you explore your Medicare choices, you may run across unfamiliar words or phrases. This glossary explains what they mean.

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Health Alliance Plan (HAP) has HMO, HMO-POS, PPO plans with Medicare contracts. HAP Medicare Complete Duals (HMO D-SNP) is a Medicare health plan with a Medicare contract and a contract with the Michigan Medicaid Program. Enrollment depends on contract renewals.