Medicare Open Enrollment: How to Review Your Plan

Medicare Open Enrollment runs each year from October 15 to December 7, and it is the main time many beneficiaries can change their coverage for the following year. If you already have Medicare, this is the best moment to check whether your plan still fits your doctors, prescriptions, budget, and travel needs.

Even if you like your current coverage, plans can change from year to year. Premiums may shift, drug lists can be updated, provider networks may shrink or expand, and extra benefits may look different than they did last year. A careful review can help you avoid surprises after January 1.

What Medicare Open Enrollment lets you change

Open Enrollment is for people who already have Medicare. During this window, you can make certain coverage changes that take effect on January 1 of the next year.

• Switch from Original Medicare to a Medicare Advantage plan.
• Switch from a Medicare Advantage plan back to Original Medicare.
• Change from one Medicare Advantage plan to another.
• Join, drop, or switch a Medicare Part D prescription drug plan.

If you have Original Medicare and want to add or change drug coverage, this is a key time to review Part D options. If you already have Medicare Advantage, this is when many people compare networks, copays, and extra benefits such as dental or vision.

Start with the Annual Notice of Change

Your plan should send you an Annual Notice of Change before Open Enrollment. This document explains what will be different next year. It may not be exciting reading, but it is one of the most useful tools you have.

Look for changes in premiums, deductibles, copays, drug coverage, provider networks, and prior authorization rules.

Pay close attention if you take regular medications or see the same doctors each year. A plan that worked well this year may become less convenient or more expensive next year if important details change.

Compare the parts that matter most

When people shop Medicare plans, they often focus on one feature, such as the monthly premium. But the lowest premium does not always mean the lowest overall cost or the best fit. A better review looks at the whole picture.

1. Your doctors and hospitals

If you have Medicare Advantage, check whether your preferred doctors, specialists, and hospitals are still in network. Provider networks can change, and out-of-network care may cost more or may not be covered except in limited situations.

2. Your prescriptions

For Part D or Medicare Advantage plans that include drug coverage, compare the plan’s formulary, which is its list of covered drugs. Even if a medication is covered, its tier may have changed, which can affect what you pay at the pharmacy.

3. Total out-of-pocket costs

Look beyond the premium. Review deductibles, copays, coinsurance, and the maximum out-of-pocket limit if you are comparing Medicare Advantage plans. Think about how often you use care, not just what the plan costs to join.

4. Extra benefits

Some Medicare Advantage plans advertise dental, vision, hearing, transportation, or fitness benefits. These can be helpful, but the details matter. Check what is actually included, whether there are limits, and whether you need to use a specific provider.

Use a simple checklist before you switch

A straightforward checklist can make Medicare shopping less overwhelming. Before you enroll in a new plan, ask:

1. Are my doctors and preferred hospitals included?
2. Are my prescriptions covered, and are the tiers still workable?
3. What are the premium, deductible, copays, and out-of-pocket limits?
4. Do I need referrals or prior authorization for services I use often?
5. Will I be able to use the plan where I live, travel, or spend part of the year?

If you are comparing Original Medicare plus a Medigap policy against Medicare Advantage, remember that the two approaches are different. Original Medicare with Medigap may offer broader provider access, while Medicare Advantage may bundle benefits in one plan. The best choice depends on how you use care and how much flexibility you want.

Common mistakes to avoid

Some of the most common Medicare mistakes happen when people make quick decisions based on marketing materials or last year’s coverage. Taking a little extra time now can help you avoid problems later.

• Assuming last year’s plan is still the best plan. Plans can and do change.
• Ignoring drug coverage. A plan may look good until you compare your actual prescriptions.
• Missing the deadline. Open Enrollment ends December 7 in most cases.
• Overlooking provider networks. A plan is less useful if your doctors are not included.
• Choosing based only on premium. A lower monthly cost may come with higher copays or fewer options.

It can also help to keep notes while comparing plans. Write down the name of each plan, what looks good about it, and what concerns you. That makes it easier to compare side by side instead of relying on memory.

How to compare without getting overwhelmed

If you are looking at several plans, narrow the list first. Start with the plans that cover your doctors and prescriptions, then compare cost and convenience. You do not need to evaluate every plan in your area to make a good decision.

You can use Medicare’s plan comparison tools, call the plan directly, or ask a trusted counselor or licensed insurance professional for help. Just be sure you understand whether the person helping you represents one company or can show you multiple options.

Also remember that your needs may change from year to year. A plan that works well while you are healthy may not be ideal if your prescriptions, travel habits, or care needs change. That is why a yearly review is worth the time.

Bottom line: review before you renew

Medicare Open Enrollment is not just for people who want to switch plans. It is also the best time to make sure your current coverage still matches your life. Start with your Annual Notice of Change, check your doctors and medications, and compare the full cost picture before you decide.

If you are not sure whether to stay put or make a change, compare a few options side by side. A careful review can help you choose with more confidence for the year ahead.