How to Compare Medicare Part D Plans for 2027: A Step-by-Step Guide

Choosing a Medicare Part D prescription drug plan for 2027 isn't simply about finding the lowest monthly premium. Your medications, preferred pharmacies, plan formulary, deductible, and out-of-pocket costs all influence which coverage may be most appropriate for you.

With Medicare's Annual Enrollment Period running from October 15th through December 7th, now is the time to review your prescription drug coverage for the coming year.

1. Review Your Current Medications

Start by preparing an accurate list of your prescription medications, including dosage, quantity, and how frequently you refill each prescription.

Even if your medications haven't changed, your plan's coverage and costs may change for 2027.

2. Look Beyond the Monthly Premium

A lower premium doesn't necessarily mean lower overall costs.

Compare each plan's monthly premium, annual deductible, prescription copayments or coinsurance, and estimated annual drug expenses.

The goal is to understand your potential total costs—not simply what you pay each month.

3. Check the Plan's Formulary

A formulary is the list of prescription medications covered by a particular plan.

Check whether your medications are included, which cost-sharing tiers apply, and whether any restrictions exist, such as prior authorization, quantity limits, or step therapy.

4. Compare Pharmacy Options

Prescription costs can vary depending on where you fill your medications.

Check whether your preferred pharmacy participates in the plan's network and whether another participating pharmacy offers preferred cost-sharing.

Also consider available mail-order options.

5. Review the 2027 Plan Changes

Medicare prescription drug plans can change their premiums, deductibles, formularies, pharmacy networks, and cost-sharing arrangements from year to year.

Review your plan's Annual Notice of Change and compare your existing coverage against available 2027 alternatives.

6. Make Your Enrollment Decision Before December 7th

For most people using Medicare's Annual Enrollment Period, changes made between October 15th and December 7th become effective January 1st, 2027.

You can compare available plans using Medicare's official Plan Finder at Medicare.gov.

Want Step-by-Step Help Comparing Your 2027 Medicare Part D Options?

If you prefer to review your prescription drug coverage independently but aren't sure where to begin, our self-paced Medicare Rx Plans 2027: How to Compare, Choose, and Save course walks you through the comparison process.

Learn how to evaluate plan options, review prescription costs, and approach your coverage decisions with greater confidence—at your own pace.

Explore and purchase the 2027 Medicare Prescription Drug Plan course:

PURCHASE THE 2027 MEDICARE PART D COURSE

This article is provided for educational purposes. Plan availability, coverage, and costs vary by individual circumstances and location. Review official plan documents and Medicare.gov before making enrollment decisions.