Medicare Advantage Star Ratings: What They Mean for You

When you shop for a Medicare Advantage plan, you will see a star rating displayed next to each option. That number, usually between 1 and 5 stars, is more than a marketing badge. It is a summary of how well the plan performs on dozens of quality measures, from how quickly you can get an appointment to how well the plan handles prescription drug coverage. Understanding what goes into that rating, and what it does not tell you, can help you choose a plan that fits your health needs and your budget. This guide breaks down how Medicare Advantage star ratings work and what they mean for beneficiaries like you.

How CMS Assigns Medicare Advantage Star Ratings

The Centers for Medicare & Medicaid Services (CMS) evaluates every Medicare Advantage plan each year and publishes a star rating from 1 (poor) to 5 (excellent). The rating is not a single test score. It is a composite of many performance indicators grouped into five broad categories. CMS collects data from claims, member surveys, and plan submissions, then weights the measures to produce an overall score. Plans that earn 4 or 5 stars are considered above average, while plans with 3 stars are average. A 2-star or 1-star plan is below average and may trigger special enrollment rights for members.

The star rating system is designed to give you a quick, standardized way to compare plans on quality. It also rewards plans that perform well: high-rated plans may receive bonus payments from CMS, which they can reinvest in extra benefits or lower premiums. For beneficiaries, the rating is a starting point, not the final word. A 5-star plan in your area might not cover your specific doctors or prescriptions, while a 3.5-star plan might be a perfect fit for your needs.

The Five Categories Behind Every Star Rating

CMS organizes its quality measures into five categories. Each category carries a different weight in the overall score, and the specific measures can change slightly from year to year. Here is what each category generally covers:

• Staying healthy: Screenings, tests, and preventive care. This includes measures like whether members get recommended cancer screenings, flu shots, and routine checkups.
• Managing chronic conditions: How well the plan supports members with ongoing conditions such as diabetes, heart disease, and high blood pressure. Measures include medication adherence and regular monitoring.
• Member experience: Results from member surveys about access to care, appointment wait times, and overall satisfaction with the plan.
• Member complaints: How often members file complaints or appeals, and how quickly the plan resolves them. Fewer complaints and faster resolutions lead to higher scores.
• Customer service and plan administration: Measures like how quickly the plan processes enrollment, handles calls, and provides information. Drug plan quality is also included here for plans with prescription coverage.

Each category contains multiple individual measures. For example, the member experience category might include questions about how easy it is to get needed care and how well doctors communicate. The chronic conditions category might track whether diabetic members receive regular eye exams. CMS combines these into category scores, then weights them to produce the overall star rating. Because the weights are not equal, a plan can excel in one area but still receive a moderate overall score if it struggles in a more heavily weighted category.

What Star Ratings Mean for Your Benefits and Enrollment

Star ratings can affect your benefits in several ways. First, plans with 4 or 5 stars often use their bonus payments to offer extra benefits, such as dental, vision, hearing, or fitness programs. These extras can make a high-rated plan more valuable than a lower-rated plan with a similar premium. Second, a plan's star rating can influence when you can enroll. If CMS assigns a plan a 5-star rating for three consecutive years, it may qualify for a special enrollment period, allowing you to switch into that plan outside the usual enrollment windows. Conversely, if your current plan drops to 2 stars or lower, you may have a special enrollment period to switch to a higher-rated plan.

Star ratings also matter for plan stability. A plan that consistently earns high marks is more likely to remain in the market and continue offering its benefits. Low-rated plans may exit the market or reduce benefits. However, a high rating does not guarantee that a plan will stay in your area forever. Plan availability can change annually, so it is wise to review your options each year during the Annual Enrollment Period (AEP), which runs from October 15 to December 7.

It is also important to understand that star ratings are not the same as plan performance in every local market. A plan might have a 4-star rating nationally but a lower rating in your specific county. CMS publishes ratings by plan and by county, so you should check the rating for the exact plan available where you live.

How to Use Star Ratings Alongside Costs and Networks

Star ratings are a valuable tool, but they should not be the only factor in your decision. A plan with 5 stars is not automatically the best choice if it does not cover your doctors or medications. Here is a practical framework for using ratings alongside other key considerations:

1. Check network coverage first: Make sure the plan's network includes your preferred doctors, hospitals, and specialists. A high rating means little if you cannot see the providers you trust.
2. Review the drug formulary: If you take prescription medications, verify that the plan covers them at a reasonable cost. Drug coverage is a major part of the star rating, but the specific drugs you need may still be excluded or placed on a high tier.
3. Compare out-of-pocket costs: Look at the premium, deductible, copays, and annual out-of-pocket maximum. A plan with a slightly lower star rating but much lower costs could save you money.
4. Consider extra benefits: High-rated plans often provide additional benefits like dental, vision, hearing aids, and fitness memberships. If you value these extras, a higher-rated plan may offer better overall value.
5. Look at the trend: A plan's rating can change from year to year. A plan that has steadily improved its rating may be a better long-term choice than one that has been declining.

By combining star ratings with a careful review of costs, networks, and drug coverage, you can make a more informed decision. For a deeper look at how one major carrier is adjusting its Medicare Advantage offerings, see our guide on Aetna leaving Medicare Advantage in 2026. This can help you understand market shifts that may affect plan choices in your area.

Remember that star ratings are updated each fall for the following plan year. Always check the most recent ratings for the plans available in your ZIP code. A licensed insurance agent can help you compare plans side by side, taking both quality ratings and your personal health needs into account.

Frequently Asked Questions About Medicare Advantage Star Ratings

Can I switch plans if my Medicare Advantage plan has a low star rating?

If your plan receives an overall rating of 2 stars or lower for two consecutive years, you may qualify for a special enrollment period to switch to a 5-star plan. Otherwise, you can change plans during the Annual Enrollment Period or other qualifying events.

Do star ratings affect my premiums?

Indirectly, yes. High-rated plans may receive bonus payments that allow them to offer lower premiums or extra benefits. However, premiums vary by plan and location, so always compare costs directly.

Are star ratings the same for all plan types?

No. Medicare Advantage plans with prescription drug coverage (MA-PD) are rated on a different set of measures than stand-alone Part D plans. The star rating you see for a Medicare Advantage plan reflects its combined health and drug coverage performance.

How often do star ratings change?

CMS releases new star ratings each October for the upcoming plan year. Ratings can go up or down based on the plan's performance on quality measures.

Medicare Advantage star ratings are a powerful shorthand for plan quality, but they are just one piece of the puzzle. By understanding how ratings are calculated and using them alongside cost, network, and drug coverage information, you can choose a plan that supports your health and your wallet. If you need help comparing top-rated plans in your area, consider speaking with a licensed insurance agent who can walk you through your options. And if you are also thinking about life insurance to protect your family, LifeAgency offers free quotes from licensed agents.