Understanding Medication Costs and Telehealth Coverage Under Medicare If you take a medication that must be administered in your doctor’s office, it’s important to know that your out-of-pocket costs can vary significantly depending on how the medication is billed. How Medication Billing Works Here’s the key difference: If your prescription is filled at a pharmacy and you bring the medication to your doctor’s appointment for administration, the cost is usually covered under your Medicare Part D prescription drug plan . If your doctor provides the medication directly from their office , the cost will typically be billed through Medicare Part B medical insurance . Why Does This Matter? The distinction is important because Medicare Part B and Part D have different cost-sharing rules , especially if you have a Medicare Advantage plan . Under Part D , you typically pay a copayment or coinsurance based on your plan’s formulary tier system. Under Part B , you general...