Part D: Drug Program drug coverage

The drug program is a way to add coverage to Original Medicare. It helps cover the costs of prescribed medications.

Prescription Drug Plans are usually priced between $15-$40 per month and you can sign up by visiting or by calling 1800-MEDICARE.

Each Medicare Prescription Drug Plan has its own list of covered drugs. This is known as a formulary. It contains a list of drugs under a certain plan. The drugs are placed into different tiers and each tier has a specific cost.

Depending on the drug, a plan may have rules associated with it. The drug might:

  • Require prior authorization
  • Use Step Therapy
  • Have quantity limits