HAP Medicare Formulary Drug List
Does your Medicare plan include Part D prescription drug benefits? Find out if your Medicare plan covers your prescription medication.
Search our drug list
The easiest way to tell if your medication is covered is to download the HAP Medicare formulary. Press Ctrl+F (Command+F for Mac) and type in the name of the drug to see whether it’s included in the covered drug list for your type of plan. The drug name will be highlighted.
For more information about the prescription drug coverage provided, download these documents:
2026 plans
- Prior Authorization
- Part D Step Therapy
- Part B (Medical Drug) Step Therapy
- HAP Medicare Part D Formulary Changes
- HAP Medicare Part B Payment Allowance Limits

Find a pharmacy
Fill your prescription at our convenient locations.
To be covered by the plan, you must have your prescriptions filled at either plan retail pharmacies or our mail-order pharmacies. In some cases, prescriptions filled at a non-plan pharmacy may also be covered.
For certain prescription drugs, we have additional requirements for coverage or limits on our coverage. These requirements and limits are described in the Evidence of Coverage for each plan.
The formulary may change at any time. You will receive notice when necessary.
Health Alliance Plan (HAP) has HMO, HMO C-SNP, HMO-POS, and PPO plans with Medicare contracts. HAP Medicare Complete Duals (HMO D-SNP), HAP Medicare Complete Assist (PPO D-SNP), and HAP CareSourceTM MI Coordinated Health (HMO D-SNP) are Medicare health plans with a Medicare contract and a contract with the Michigan Medicaid Program that provides benefits of both programs to enrollees. Enrollment depends on contract renewals.