If you have creditable coverage through an employer or your spouse’s employer plan, which allows you to delay Medicare without penalty, we recommend using the Employer Coverage feature. This is the best way to model enrolling in Medicare Part A only.
Step 1: Go to My Plan > Expenses and Health Care > Medicare
Step 2: Open the Medicare Expenses (65 through longevity) section
Step 3: Enable the Estimator (if not already enabled)
Step 4: Press ✎ (pencil) to edit your Medicare selection
Step 5: Add Employer Medicare coverage
Step 6: Enter your annual out-of-pocket costs and the age these costs will end
Step 7: Make sure to press Save