Medicare Advantage Star Ratings: How to Use Them When Comparing Plans
Medicare Advantage Star Ratings can offer a useful starting point when you compare plans, but they are only one part of the decision. The ratings summarize selected quality and service measures for a plan contract. They do not tell you whether a particular plan includes your doctors, covers your prescriptions on workable terms, or fits your budget. Knowing what the stars mean and what they leave out can help you ask more focused questions.
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What Medicare Advantage Star Ratings show
Medicare uses a star-rating system to summarize how Medicare Advantage and Medicare drug plans perform on selected measures. Ratings are generally displayed on a one-to-five-star scale, with more stars indicating stronger measured performance. The Centers for Medicare & Medicaid Services (CMS) describes Star Ratings as a way to capture a contract's performance during a measurement period. A contract can perform better or worse from one measurement period to another, so the rating is not a permanent label. CMS explains the 2027 Medicare Advantage and Part D Star Ratings. Medicare.gov provides a plan comparison tool where you can review available Medicare Advantage options and plan details for your area.
Measures draw on several kinds of information. Depending on the contract and the year, they can include areas such as members' experience with the plan. Customer service, access to care, complaints, and how well certain care or medication processes are handled. The overall star score condenses multiple measures into a summary. It does not replace the underlying details, and a single number cannot show every aspect of care that may matter to an individual.
Ratings are associated with a plan contract, rather than being a personal assessment of every member's care or every doctor in a network. When reviewing a plan, check that you are looking at the rating for the relevant contract and plan year. Plan names can look similar, and benefits or networks may differ by plan and service area. A rating from a prior year should not be assumed to describe the current year's offering.
How to interpret the star score
Think of the rating as a broad quality signal that can help you decide where to look more closely. A higher score may suggest stronger measured performance on the included measures. But it is not a guarantee of an individual experience or a promise that every service will work as expected. A lower score also does not, on its own, explain why a contract received that rating or whether the plan meets a particular person's needs.
It is useful to consider the score alongside its component measures. If the available materials show measure-level information, review it rather than stopping at the overall rating. For example, a person who values ease of getting help may want to examine relevant service and access measures. Someone taking several prescriptions will still need to check the plan's current drug coverage details directly. A composite rating cannot answer those personal, plan-specific questions for you.
Also pay attention to the year attached to a rating. CMS evaluates performance using information from a measurement period and releases ratings for a plan year. The rating may change as the contract's results and CMS's methodology change. JAMA Health Forum has discussed how recalculating Medicare Advantage ratings affected 2024 scores and bonus payments. Illustrating why it is sensible to read ratings in context rather than treat them as an unchanging measure. Read the analysis of Medicare Advantage Star Rating limitations.
What Star Ratings cannot tell you
A Star Rating is not an individualized recommendation, and it is not a guarantee of a particular clinical result, appointment, or customer-service experience. The score summarizes selected measures across a contract. It cannot predict exactly what will happen to one member, and it does not show whether a plan matches a person's health care priorities.
The rating alone does not establish that a doctor, specialist, hospital, pharmacy, or other provider is in network. It does not tell you whether a specific medication is covered, what tier it is on, or what you may pay at a particular pharmacy. It also does not summarize the full effect of premiums, deductibles, copayments, coinsurance, or the plan's annual out-of-pocket maximum. Those details require a separate review of the plan's current documents and availability in your area.
Nor should a star score be treated as the same thing as a customer review or a count of positive experiences. Ratings follow CMS's defined measures and processes. They are not a collection of online reviews, and they do not say that every member has the same experience. The National Council on Aging offers an overview of how consumers can use Medicare ratings while comparing plan quality and other plan details. See the NCOA guide to Medicare Star Ratings.
A practical comparison beyond the stars
Use the rating as one column in a larger comparison. First make sure the plan is available where you live and that you meet the applicable enrollment requirements. Medicare Advantage applicants must be enrolled in both Medicare Part A and Part B. Then compare the practical details that affect how you would use the coverage.
| What to compare | What to verify | Why it matters |
|---|---|---|
| Star Rating | Current year, contract, score, and measure details when available | It gives a broad performance signal, not a personal outcome guarantee. |
| Doctors and facilities | Whether your doctors, specialists, hospitals, and preferred facilities participate in the exact plan network | Networks differ between plans and may affect access and costs. |
| Prescription coverage | Whether each medication is on the formulary, its tier, any restrictions, and preferred pharmacy options | A general quality score does not show the plan's coverage or cost for your prescriptions. |
| Costs | Premiums, deductibles, copayments, coinsurance, and the annual out-of-pocket maximum | Looking at one cost alone can leave out the expenses that matter when you use care. |
| Benefits and rules | Covered services, supplemental benefits on select plans, referrals, prior authorization, and other plan rules | Benefits and requirements vary; confirm them in current plan materials. |
| Plan year changes | Annual Notice of Change and updated Evidence of Coverage | Providers, costs, benefits, and coverage rules can change for a new plan year. |
This checklist is a way to organize questions, not a substitute for checking the plan's official materials. For a fuller overview of how Medicare Advantage coverage works, see Medicare Advantage and MAPD guidance. You can also review this Medicare Advantage plan comparison guide for more detail on premiums, networks, coverage, and extras.
Review networks, prescriptions, and costs in detail
Provider network: Check the exact plan name and plan year with each provider's office and the insurer's current directory. Ask whether the provider participates in that specific plan, not only whether they accept Medicare or work with the carrier generally. If access to a particular specialist or hospital is important, include it in your review before choosing. Network rules can differ, so compare the plan's service area and referral requirements as well. This is especially important when comparing an HMO and PPO; the HMO versus PPO guide explains common network differences.
Prescription coverage: Make a current list of the medications you take, including dosage and frequency, and check each one against the plan's formulary. Review the drug tier, any coverage restrictions, and the pharmacy arrangements that apply. Do not assume that a favorable overall rating means a medication is covered or affordable. If the plan includes drug coverage, it is called MAPD; a plan without drug coverage may require a separate assessment of prescription coverage options. The Medicare Part D guide explains why formularies and costs deserve their own comparison.
Costs and benefits: Look beyond the monthly premium. Review the deductible, copayments, coinsurance, and annual out-of-pocket maximum, then consider how those amounts could apply to the services you expect to use. Medicare Advantage plans combine Part A hospital and Part B medical coverage through a private insurance carrier. Some plans also include prescription coverage and added benefits such as dental, vision, hearing, fitness programs, or OTC, grocery, or utility allowance cards on select plans. Do not assume every plan includes each extra or that an advertised allowance applies in the same way across plans. Confirm the terms for the specific option.
Annual changes: If you are already enrolled, compare current plan documents with the Annual Notice of Change for the upcoming year. Look for changes to premiums, cost sharing, networks, covered drugs, and benefits. A rating may be updated, but it does not summarize every plan change that affects you. Use the official notice and Evidence of Coverage to check the details; see what to review in a Medicare Annual Notice of Change.
How to use ratings without letting them decide for you
- Start with the current year. Confirm the plan year and contract associated with the rating. Avoid relying on an old brochure or a score copied from a previous year.
- Use the rating to focus questions. Review component measures when available. Identify what you want to understand further rather than treating a single number as a final verdict.
- Check personal priorities independently. Verify providers, prescriptions, costs, service area, and benefits using plan-specific materials.
- Compare alternatives on the same basis. Use the same doctors, medication list, and expected services for each option so the trade-offs are easier to see.
- Ask for clarification where the documents are unclear. A licensed adviser can explain plan terms and compare options available in your area. The choice should account for your own providers, prescriptions, costs, and preferences, not a rating alone.
Making a side-by-side comparison manageable
It can help to separate non-negotiable needs from preferences. A provider you rely on, a medication you take regularly. Or a cost limit may deserve a different level of attention than an extra benefit you might use occasionally. Write down the items that matter before reviewing plan summaries. This keeps a broad rating from dominating the decision simply because it is the easiest figure to compare.
For each plan, record the current contract and star score, then note any available measure details that raise questions. In a separate section, list your doctors and facilities and mark whether the plan directory confirms each one. Create a medication list and record the formulary tier, restrictions, and pharmacy terms for each option. Then compare premiums and cost sharing using the services you expect to use. Keep the source documents and the plan year beside your notes, so an old detail is not accidentally carried forward.
When two options have similar ratings, the score may not help distinguish which one is a better match for your circumstances. Focus instead on the differences in network access, prescription terms, costs, and benefits. If one option has a higher score but excludes a provider you want to keep, that trade-off deserves careful consideration. If the plan details are difficult to interpret, write down the specific question and ask a licensed adviser to explain the applicable terms. A clear comparison means understanding both what a score summarizes and what is outside its scope.
Try a simple comparison worksheet
A short worksheet can turn a stack of plan summaries into specific questions. Use one page per plan, or create columns for two or three options. Write the plan name, contract information, service area, plan year, and star score at the top. Add a note about where the score came from and when you checked it. That small record helps prevent confusion when similar plan names or older materials appear in your research.
Next, list your regular doctors, specialists, and preferred hospitals. Beside each one, mark whether you verified participation for the exact plan, and note any unresolved question. On a separate line, list every prescription with its dosage and frequency. Record the formulary tier, restrictions, and pharmacy information shown in the plan materials. If you cannot confirm an item, mark it for follow-up rather than assuming it is covered. This makes missing information visible instead of letting it disappear inside a general impression of the plan.
Then compare the costs you could actually encounter. Note the premium, deductible, common copayments or coinsurance relevant to your expected care, and the annual out-of-pocket maximum. A plan with a lower premium may still have a different cost pattern when you use services, so avoid using the premium as a stand-in for total expenses. Do not try to predict every medical need. The purpose is to understand the stated terms and identify which costs deserve closer attention.
Finally, separate facts from questions. For example, one row might say that a doctor appears in the current directory. Another might say that you still need to confirm whether a particular medication has a restriction. This distinction helps you compare plans fairly and ask a licensed adviser focused questions. The star score remains useful context, but the worksheet shows how the rest of the plan lines up with your own priorities.
An independent brokerage can help organize this review across available plans and explain how the options differ. Grey State Financial is an independent insurance brokerage, not an insurance carrier. Its agents are compensated by insurance carriers, not by clients. Plan availability and benefits vary by location and contract; an individual comparison should use the current plan materials.
We do not offer every plan available in your area. Currently we represent 6 organizations which offer 110 products in your area. Please contact Medicare.gov, 1-800-MEDICARE, or your local State Health Insurance Program (SHIP) to get information on all of your options.
Contact Grey State Financial with your plan questions, or call (424) 348-3637.
Frequently Asked Questions
Do more stars mean a plan is right for me?
No. A higher rating indicates stronger measured performance on the measures included in the rating. But it does not establish that a plan covers your doctors or prescriptions, fits your budget, or suits your preferences. Compare those details separately.
Are Medicare Advantage Star Ratings updated?
CMS releases ratings for plan years using measured performance information. Scores can change over time, so check the rating for the year you are reviewing rather than assuming a previous year's score still applies.
Does the score describe every doctor or member experience?
No. The score summarizes selected measures at the contract level. It is not a rating of every provider in the network, a prediction of an individual's care, or a collection of individual customer reviews.
What should I compare after checking the rating?
Confirm the current plan's provider network, drug formulary, premiums and cost sharing, annual out-of-pocket maximum, benefits, and coverage rules. Review the plan's official materials for the relevant year and service area.
Medicare Advantage Star Ratings can help you begin a comparison. But the most useful choice comes from weighing that quality signal alongside the plan details that shape your own access, prescriptions, and costs.