During Medicare’s Annual Enrollment Period (AEP), reviewing your Part D prescription drug coverage is one of the most practical steps you can take for the year ahead. Plans can change annually, including their drug lists, pharmacy networks, coverage rules, and costs. A careful review helps you understand how your current medications may be covered and whether your plan still fits your needs.

For seniors and caregivers, the process can feel detailed, but it does not have to be overwhelming. This checklist from Managed Senior Services breaks the review into manageable steps and offers a clear starting point for seeking independent Medicare guidance. Be sure to review the Annual Notice of Change for the plan.

Start With a Complete Medication List

Begin by gathering an accurate, up-to-date list of every prescription medication. Include medications taken regularly, medications used only when needed, and any new prescriptions your doctor expects you may start soon. It is also helpful to note the exact drug name, whether it is brand-name or generic, and the strength shown on the prescription label.

Caregivers can make this easier by bringing together prescription bottles, pharmacy printouts, and medication lists from recent medical appointments. Small differences in a medication name or strength can affect Part D results, so accuracy matters.

Confirm Dosage and How Often Each Medication Is Taken

A medication list is most useful when it also shows the dosage and frequency. For example, write down whether a medication is taken once daily, twice daily, every other day, or only as needed. Note how many tablets, capsules, injections, or other units are used each time.

This information helps estimate the quantity needed over a full year. A plan may cover a medication, but the out-of-pocket cost can look very different depending on whether you fill a 30-day supply each month or a 90-day supply several times a year.

Check Each Plan’s Formulary and Drug Tiers

Every Part D plan has a formulary, which is its list of covered drugs. Even if a medication was covered this year, do not assume it will appear on next year’s formulary in the same way. A plan may move a drug to a different tier, add coverage requirements, or remove it from the list.

As you compare options, check whether each medication is covered and identify its tier. In general, lower tiers often have lower copays or coinsurance, while higher tiers may result in greater out-of-pocket costs. If a medication is not covered, ask whether an approved alternative may be available through your prescribing clinician.

Managed Senior Services can provide independent Medicare advice to help you understand how Part D coverage fits alongside Medicare Advantage or Medicare Supplement coverage. The goal is to make the details clearer so you can make an informed decision that reflects your prescriptions and healthcare preferences.

Review Preferred Pharmacies and Mail-Order Options

Pharmacy choice can make a meaningful difference in how a Part D plan works for you. Many plans have preferred pharmacy networks, where certain medications may be available at lower cost than at standard in-network pharmacies. Before enrolling or renewing, verify that the pharmacies you use are in-network and determine whether they are preferred.

Also consider whether mail-order service would be convenient for medications you take consistently. Some plans offer 90-day supplies through mail order or preferred retail pharmacies. For caregivers supporting a loved one, this may simplify refills and reduce missed doses, but it is still important to compare the actual costs and delivery arrangements.

Look for Prior Authorization and Step Therapy Rules

Coverage is not always as simple as seeing a medication listed on a formulary. Some Part D plans require prior authorization, meaning the plan needs information from the prescribing clinician before it will cover the medication. Others use step therapy, which may require trying a lower-cost or preferred medication before coverage is approved for another drug.

Check for these rules medication by medication. If a current prescription has a requirement attached, discuss it with your doctor and make sure you understand the process. This can help avoid unexpected delays when you need a refill.

Compare Total Annual Cost, Not Just the Monthly Premium

A low monthly premium can be appealing, but it is only one part of the cost picture. A thorough Part D review should consider the plan premium, deductible, copays or coinsurance for each prescription, pharmacy pricing, and estimated costs across the year.

Two plans with similar premiums may produce very different annual costs based on the medications you take. Looking at total expected spending gives you a more complete comparison and helps you avoid choosing a plan based only on its monthly price.

Remember That Plan Details Can Change Every Year

Annual review matters because Part D plan details are not fixed. Formularies, tiers, deductibles, pharmacy networks, premiums, and coverage restrictions can all change from one plan year to the next. Your own needs can change as well, especially when prescriptions are added, discontinued, or adjusted.

That is why Managed Senior Services encourages seniors, caregivers, and those approaching Medicare at 65 to revisit their coverage during AEP. Employees preparing for Medicare can also benefit from reviewing their options before leaving employer-sponsored coverage. Ongoing annual support can make it easier to keep up with plan changes and ask questions when your circumstances evolve.

A Practical Part D Review Checklist

• Make a complete list of all prescription medications.
• Confirm each medication’s name, strength, dosage, and frequency.
• Check whether every medication is on the plan formulary.
• Review the tier assigned to each covered drug.
• Identify any prior authorization, quantity limit, or step therapy requirements.
• Verify that your preferred pharmacy is in-network and determine whether it is preferred.
• Compare mail-order and 90-day supply options when appropriate.
• Estimate total annual costs, including premium, deductible, and prescription costs.
• Review plan changes carefully, even if you have been satisfied with your current coverage.

FAQ

Why should I review my Medicare Part D plan during AEP?

Part D plans can change their formularies, drug tiers, pharmacy networks, premiums, deductibles, and coverage rules each year. Reviewing your plan during AEP helps you see how those changes may affect your prescriptions for the coming year.

What information do I need for a Part D review?

Bring an accurate list of every prescription medication, including the drug name, strength, dosage, frequency, and the pharmacy you prefer to use. Prescription bottles and pharmacy records can be helpful sources.

Is the lowest premium always the best Part D plan?

Not necessarily. The premium is only one cost to consider. Deductibles, copays, coinsurance, pharmacy pricing, and how each medication is covered can all affect your total annual cost.

What does prior authorization mean for Medicare Part D?

Prior authorization means the plan requires additional information from your prescribing clinician before it will cover a medication. It is important to identify these requirements early so you understand the process and can help prevent refill delays.

Can caregivers get help reviewing Medicare Part D coverage?

Yes. Caregivers often play an important role in organizing medication details, comparing pharmacy options, and helping a loved one understand plan changes. Independent guidance can help make the review process more manageable.

If you would like help working through your Medicare Part D checklist during AEP, contact Managed Senior Services in Glen Allen, Virginia. Our team is here to provide thoughtful Medicare guidance and annual support as you review your coverage options.