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Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Medigap is usually easier to evaluate when ratings change. A Medigap letter has standardized benefits no matter which insurer sells it, so you can compare the same letter primarily by premium, pricing method, financial and service considerations, underwriting, and state protections. Medicare Advantage (MA) requires a new, location-specific review each year: its CMS Star Rating is only one part of a package whose network, drug list, premiums, cost sharing, utilization rules, and extra benefits can all change.
If an MA rating falls, do not switch on the rating alone. Use the change as a prompt to read your Annual Notice of Change and recheck the entire plan in Medicare Plan Compare. If you are considering Medigap, confirm that you are in your six-month Medigap Open Enrollment Period or have a guaranteed-issue right before leaving existing coverage.
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Start with the structural difference
Medicare Advantage is an alternative way to receive Medicare
Medicare Advantage is a private plan approved by Medicare that delivers your Part A and Part B benefits through the plan. Most MA plans also include Part D prescription coverage. The plan sets a network, cost-sharing schedule, pharmacy rules, and utilization-management procedures such as prior authorization or referrals. Many plans add benefits that Original Medicare does not generally include, but those extras and their eligibility rules can change annually.
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CMS publishes an annual Star Rating for Medicare Advantage and Part D contracts to help people compare quality. An MA-PD contract can be evaluated on up to 40 measures, depending on the contract and year. CMS describes the purpose this way: “The Star Ratings system helps people with Medicare compare the quality of Medicare health and drug plans being offered so they are empowered to make the best health care decisions for themselves.” A rating is therefore a quality signal, not a summary of your personal access or expected bill.
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Medigap supplements Original Medicare
Medigap is private insurance that helps pay eligible amounts Original Medicare leaves behind, such as certain deductibles, coinsurance, or copayments. You generally pair it with a separate Part D prescription plan. You continue to use Original Medicare, so the supplement does not create the same managed-care network structure as MA. Medicare SELECT policies are an exception: they may require you to use a defined provider network for full benefits.
Medigap plans are identified by letters. For a given letter, the covered benefits are standardized across insurers in the states that offer that plan. Medicare.gov summarizes the rule as: “The benefits in each lettered plan are the same, no matter which insurance company sells it.” That standardization removes one major comparison problem, although premiums, pricing practices, underwriting, discounts, service, and state rules still differ.
What an MA Star Rating does—and does not—tell you
CMS recalculates ratings annually. The measures can include preventive care, management of chronic conditions, member experience, complaints, customer service, and drug-plan performance. A contract’s score can rise or fall even if you have not changed anything about your own health care. The rating may also reflect a contract rather than every local plan variation, so you still need to inspect the specific plan offered in your county.
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A rating does not reveal whether your cardiologist remains in network, whether a hospital is preferred, whether a medication moved tiers, or how much a prior authorization will delay treatment. It also does not convert copayments into a predictable annual bill. CMS intends ratings to be considered alongside benefits and costs, not used as a substitute for them.
Which option is easier to compare?
| Comparison point | Medicare Advantage | Original Medicare plus Medigap |
|---|---|---|
| What you buy | A Medicare-approved private plan providing Part A and Part B, usually with Part D. | A private supplement for Original Medicare; a separate Part D plan is generally needed for prescriptions. |
| Rating relevance | CMS Star Ratings apply to MA and Part D contracts and can change by contract and year. | There is no equivalent CMS MA Star Rating. Compare a standardized letter, insurer price, service, and eligibility rules. |
| Annual shopping burden | High. Recheck the Annual Notice of Change, premium, out-of-pocket limit, networks, drugs, utilization rules, extra benefits, and rating. | Lower for benefit design because same-letter benefits are standardized. Premiums, underwriting, and state protections still need review. |
| Provider access | Network and plan rules are central and may change. Doctors, hospitals, and pharmacies must be verified. | Original Medicare access is paired with the supplement. Medicare SELECT can impose network restrictions. |
| Typical cost pattern | Often a lower plan premium, but deductibles, copayments, coinsurance, and the annual maximum out-of-pocket amount vary by plan. | Monthly Medigap premium plus the Part B premium and, in most cases, a Part D premium. Same-letter premiums can differ substantially and usually rise over time. |
| Switching risk | Returning to Original Medicare does not automatically guarantee that you can buy the same Medigap policy later. | Buying during the Medigap Open Enrollment Period or a qualifying guaranteed-issue event provides stronger protection from medical underwriting. |
For 2026, CMS projected the average Medicare Advantage plan premium at $14.00 per month, down from $16.40 in 2025. This is a national projection, not a quote for your county, plan, or household. A low premium can coexist with substantial service copayments and a high annual out-of-pocket limit.
How to review Medicare Advantage after a rating change
Use the rating change as a trigger for a complete annual check, not as an automatic reason to leave.
- Read the Annual Notice of Change. Your plan sends this notice before the next plan year. It identifies changes to premiums, deductibles, cost sharing, benefits, networks, and coverage rules.
- Record the current and next-year Star Rating. Note whether the change is for the health plan, the drug plan, or the combined contract. Treat it as a screening signal while you investigate the details below.
- Recheck every important provider. Search for primary-care clinicians, specialists, hospitals, laboratories, and facilities in Medicare Plan Compare. Network directories can change, so confirm participation with the plan before enrolling or relying on a listing.
- Check each prescription. Enter every drug, dose, and pharmacy into Plan Compare. Compare the formulary tier, quantity limits, prior authorization, step therapy, preferred pharmacies, deductible, and estimated annual drug cost.
- Calculate the full cost pattern. Compare the plan premium, Part B premium obligations, medical and drug deductibles, copayments, coinsurance, and maximum out-of-pocket amount. Consider a normal year and a serious-illness year rather than looking only at the monthly premium.
- Review utilization rules. Identify referral requirements, prior authorization, concurrent review, and other rules that could affect the care you expect to use. Ask the plan how an existing authorization is handled when a service or plan year changes.
- Value the extras only if you will use them. Dental, hearing, vision, transportation, fitness, over-the-counter, or meal benefits may have narrow networks, dollar caps, vendor rules, or qualifying conditions. Compare the usable value, not the headline list.
- Compare alternatives in your service area. Use the next plan year’s information in Plan Compare. A higher-rated plan can still be a poor fit if your doctors are out of network or your medications are expensive.
- Confirm before enrolling. Call the plan about any provider, drug, or benefit that determines your decision. Keep the representative’s name, date, and reference number with your enrollment records.
What to do when your MA rating drops
If access and costs are unchanged
A one-year decline is a reason to investigate, not proof that your care has become unacceptable. Check the underlying measures when available, then verify that your doctors, hospitals, drugs, and authorizations remain suitable. If the plan still meets your needs and alternatives do not improve your total position, staying may be rational.
If the rating drop accompanies a network or formulary change
Prioritize the concrete change. A lost specialist, a hospital leaving the network, or a medication moving to a costly tier can matter more than a fractional rating movement. Compare another MA plan or Original Medicare with Medigap and Part D during an applicable enrollment period.
If you cannot obtain needed care
Document denials, delays, network errors, and appeals. Ask the plan for its coverage decision and appeal instructions, and use Medicare’s enrollment and complaint resources for the next available change opportunity. Do not cancel coverage until replacement coverage has an effective date.
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How to compare Medigap policies
- Choose the letter first. Decide which standardized benefits you need, then compare that same letter across insurers. Comparing different letters before deciding on benefits mixes coverage differences with price differences.
- Obtain an official quote. Online estimates may not be the final price. Request the insurer’s current quote for your state, age, tobacco status where applicable, household situation, and requested effective date.
- Ask how the premium is rated. An insurer may use community-rated, issue-age-rated, or attained-age-rated pricing. The method affects how premiums can change as you get older. Same-letter policies can therefore have very different current and future costs.
- Check discounts and service terms. Ask about household, automatic-payment, or other discounts, how often rates are reviewed, customer-service channels, and the process for correcting a claim or billing issue.
- Confirm underwriting. During the six-month Medigap Open Enrollment Period that begins when you have Part B and are 65 or older, insurers generally cannot use health questions to deny coverage or charge more because of health. Outside that period, medical underwriting may apply unless a guaranteed-issue right or another state protection applies.
- Identify SELECT restrictions. If a policy is Medicare SELECT, verify the hospitals and providers you use and understand the circumstances in which out-of-network care receives reduced benefits.
- Budget the companion coverage. Add the Part B premium and, in most cases, a separate Part D plan premium and cost sharing. Medigap does not pay for prescription coverage.
Medicare.gov states, “Price is the only difference between policies with the same letter sold by different companies.” In practice, that statement refers to the standardized covered benefits; premiums, pricing method, underwriting, discounts, insurer operations, and SELECT network terms still determine whether a policy is suitable and obtainable for you.
Switching between MA and Medigap: the underwriting trap
Medicare Advantage and Medigap are mutually exclusive paths for the same coverage. Medicare.gov’s plain-language explanation is: “You can’t have both.” If you enroll in MA, you generally cannot use a Medigap policy to pay the MA plan’s deductibles, copayments, or coinsurance.
Leaving Medigap for Medicare Advantage
You can generally drop Medigap to join MA during an applicable enrollment period, but returning later may be difficult. Outside a protected period, an insurer can ask health questions, charge more, or decline to sell the policy where federal rules allow. Do not assume that the lettered plan you once owned will be available on the same terms.
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Leaving Medicare Advantage for Original Medicare and Medigap
Some people have a trial right or guaranteed-issue right, such as limited situations involving a first-time MA enrollment or the loss of an employer or plan contract. The exact right depends on what coverage you had, why it ended, and your state. Confirm the right before disenrolling and apply within the specified window. If no protection applies, compare the likely underwriting outcome with the cost of staying in MA.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Should you pay a higher premium for predictable costs?
Usually, the question is whether you prefer a more visible monthly expense or more variable bills when you receive care. Medigap generally trades a monthly premium for help with covered Original Medicare cost sharing. You still owe Part B and usually Part D costs, and premiums can rise. MA may offer a low or even zero plan premium, but you pay the plan’s copayments and coinsurance as services occur until reaching its annual maximum out-of-pocket limit.
Build two budgets:
- Routine-year budget: premiums, primary-care and specialist visits, prescriptions, laboratory work, imaging, and planned procedures.
- High-use-year budget: the same premiums plus the plan’s maximum possible medical out-of-pocket exposure, or the Medigap-covered amounts you would otherwise owe under Original Medicare, along with Part D cost sharing.
Choose the higher premium when the resulting cash-flow stability is worth the added fixed cost and you can maintain it through retirement. Choose the lower premium only after confirming that the network, drug coverage, utilization rules, and worst-case exposure are acceptable.
Common evaluation mistakes
- Chasing the star number: a rating does not verify your doctor, hospital, pharmacy, medication tier, or personal bill.
- Assuming last year’s network carries forward: recheck providers and facilities for the new plan year and confirm critical relationships directly.
- Comparing MA and Medigap by premium alone: include Part D, deductibles, copayments, coinsurance, and maximum out-of-pocket exposure.
- Counting every extra benefit as cash value: inspect caps, vendors, eligibility, and restrictions before assigning a value.
- Dropping coverage before replacement is effective: keep existing coverage until the new plan’s start date is confirmed.
- Assuming a past Medigap policy is guaranteed forever: switching paths can trigger underwriting and make the same policy unavailable later.
- Relying on an estimate as a final quote: request the insurer’s official offer and read the application conditions.
A practical decision framework
MA may fit better when
- Your preferred doctors and hospitals participate in a plan you have verified for the coming year.
- You value bundled Part D coverage and supplemental benefits.
- You can manage copayments, utilization rules, and the annual maximum out-of-pocket amount.
- You are willing to perform the annual notice-and-Plan-Compare review.
Original Medicare plus Medigap may fit better when
- You want standardized supplement benefits and broad Original Medicare provider access.
- You prefer to compare insurers mainly by premium and policy terms rather than by changing networks and formularies.
- You can afford the recurring Medigap, Part B, and usually Part D premiums.
- You qualify for open-enrollment or guaranteed-issue protection, or have confirmed that underwriting is acceptable.
When and where to get help
Start with the Annual Notice of Change and Medicare Plan Compare for the next plan year. For Medigap, ask insurers for official state-specific quotes and read the policy materials before applying. State Health Insurance Assistance Programs (SHIP) provide free, local, unbiased counseling. Your state insurance department can explain insurer licensing, Medigap rules, and state-specific protections. A licensed Medicare broker can also provide quotes, but ask how the broker is paid and whether the recommendations include every option available in your area.
Premiums, networks, formularies, Star Ratings, plan availability, and state Medigap rules are volatile. Treat the information in your notice and the current Medicare.gov tools as controlling for enrollment decisions.
The practical answer
Medigap is easier to evaluate structurally because a letter means the same standardized benefits across insurers. Medicare Advantage can still be the better financial or practical fit, but its value must be re-tested every year and after any rating change. Compare the whole package—providers, drugs, rules, benefits, premiums, cost sharing, and worst-case exposure—and protect your future Medigap options before you switch.
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