There are two ways to join the Medicare prescription drug coverage plan. The first is by adding it to your Original Medicare Plan or some Medicare cost plans, private fee-for-service plans, and Medical savings account plans. The second way is to join an HMO or PPO plan that includes Part D coverage. You will usually have to pay a monthly premium that will vary according to the plan you choose.
Adding Part D to the Original Medicare Plan
If you are in the Original Medicare Plan, you may add Part D coverage. Generally, you will pay a separate premium or yearly deductible.
Adding Part D to the Medicare Advantage Plan
If you are in the Medicare Advantage Plan, then chances are you already have Part D coverage. However, a few plans do not include a drug plan; therefore, you may add Part D to those plans.