If you're enrolled in a Medicare Advantage plan — or shopping for one during the Annual Enrollment Period this fall — there's a federal program quietly shaping the benefits you receive, the premiums you pay, and the star ratings you use to compare plans. It's called the Medicare Advantage Quality Bonus Program, and in 2026, it will cost federal taxpayers more than $13 billion. Understanding how this program works, who actually benefits from it, and why it's facing serious reform pressure can help you make smarter decisions about your coverage.
The Quality Bonus Program was created by the Affordable Care Act and operates on a straightforward premise: Medicare Advantage insurance contracts that earn a star rating of 4 or higher — on a scale of 1 to 5 — receive increased payments from the federal government on top of the base rates Medicare already pays private insurers to cover beneficiaries. The idea was to create a financial incentive for insurers to improve care quality and to give consumers a reliable signal when choosing plans. In practice, the program has become one of the most expensive and contested line items in the Medicare budget, and its structural flaws are drawing attention from both policy experts and lawmakers looking to reduce federal health spending.
Data Snapshot: According to CMS.gov data, more than 4,000 Medicare Advantage plan options are available nationally in 2026. Roughly 70% of Medicare Advantage enrollees are in contracts rated 4 stars or higher, which qualifies those contracts for quality bonus payments. The standard Part B premium in 2026 is $185.00 per month — a benchmark that many Medicare Advantage plans reference when advertising $0 or reduced-premium options, some of which are partly funded by these bonus payments. CMS has also finalized changes to the star ratings methodology that will take effect for 2029 plan ratings, which may shift which contracts qualify for bonuses in future payment years.
Here's what the star rating system actually measures — and where it falls short. When you look up a plan's star rating on Medicare.gov, you're seeing a score that reflects the entire insurance contract, not the specific plan you're considering. A single contract might include a standard Medicare Advantage HMO, a PPO, and a Special Needs Plan for people with diabetes — all carrying the same star rating, even though their provider networks, benefits, and member experiences may differ significantly. The Medicare Payment Advisory Commission, known as MedPAC, has repeatedly raised concerns that the rating system incorporates too many measures, doesn't adequately account for the social and economic factors that affect health outcomes, and reports ratings at the contract level rather than the individual plan level. Critics argue this makes the star rating a blunt instrument at best, and a misleading one at worst when you're trying to choose coverage.
For beneficiaries, the most important question is whether the bonus money actually reaches you. The answer depends entirely on your insurer. Plans that receive quality bonus payments may use the extra funds to reduce your monthly premium, lower your copays and deductibles, add supplemental benefits like dental cleanings, hearing aids, or vision exams, or subsidize your Part D prescription drug coverage. But insurers are not required to pass those bonus dollars on to enrollees. The decision is entirely at the plan's discretion, which means two plans with identical star ratings could offer dramatically different benefits to their members. One plan might use bonus income to offer a $0 premium and a quarterly over-the-counter allowance; another might retain the same bonus income as profit while charging a monthly premium and higher cost-sharing.
This is why comparing plans during the Annual Enrollment Period — which runs October 15 through December 7 each year, with new coverage starting January 1 — goes far beyond checking star ratings. You need to review the actual Summary of Benefits for each plan you're considering, examine the drug formulary for your specific medications, verify that your doctors and specialists are in-network, and calculate your total out-of-pocket exposure under each option. A 4-star plan with a $0 premium might cost you far more in copays and drug costs than a 3.5-star plan with a modest monthly premium and lower cost-sharing. The Plan Finder tool at Medicare.gov lets you enter your specific prescriptions and preferred providers to generate a side-by-side cost comparison — use it every year, even if you're satisfied with your current plan, because benefits change annually.
The scale of the Quality Bonus Program has grown dramatically alongside Medicare Advantage enrollment itself. In 2026, approximately 35 million people are enrolled in Medicare Advantage — that's roughly 5 million more than the Congressional Budget Office projected when it estimated in 2018 that eliminating the bonus program entirely could reduce federal spending by nearly $100 billion over ten years. Given how much enrollment has grown since that estimate, the actual savings from reform or elimination could be substantially higher today. That's a number that has caught the attention of lawmakers on both sides of the aisle who are looking for ways to reduce Medicare spending without cutting core benefits like hospital and physician coverage.
The reform conversation is real and accelerating. MedPAC has called for significant changes to how star ratings are calculated and how bonus payments are structured. One major criticism is that the current system doesn't adequately adjust for the health and socioeconomic status of a plan's members. A plan serving a lower-income population with more complex health needs may score lower on certain quality measures not because it's delivering worse care, but because its members face greater barriers to accessing care — transportation, housing instability, language barriers. This creates a perverse incentive where insurers may prefer to enroll healthier, wealthier beneficiaries to protect their star ratings and bonus income, a dynamic that runs directly counter to Medicare's mission of serving all beneficiaries equitably.
CMS finalized changes to the star ratings methodology that will take effect for 2029 plan ratings. Those changes include adjustments to how certain measures are weighted and how health equity factors are incorporated into scoring. However, critics argue the changes don't go far enough, and some policy analysts have called for replacing the entire bonus program with a more direct quality improvement mechanism that doesn't route billions through insurance company balance sheets before potentially reaching patients. Whether Congress acts on those calls — and how quickly — remains genuinely uncertain heading into 2026 and 2027.
If you're a Medicare Advantage enrollee wondering what this means for your coverage, here's the practical guidance. First, don't rely on star ratings alone. Use Medicare's Plan Finder at Medicare.gov to compare actual benefits, drug costs, and out-of-pocket maximums side by side. A 4.5-star plan that doesn't include your cardiologist in its network is a worse choice than a 3.5-star plan that does. Second, read your Annual Notice of Change carefully. Each fall, your plan is required to send you this document by September 30, detailing any modifications to benefits, premiums, or cost-sharing for the coming year. Bonus program dynamics can cause plans to add or drop supplemental benefits — dental, vision, hearing, fitness memberships — from one year to the next, and you won't know unless you read the notice.
Third, if you're considering switching from Medicare Advantage back to Original Medicare with a Medigap supplement, understand the underwriting rules before you act. In most states, if you've been enrolled in Medicare Advantage for more than 12 months, insurers can review your health history and potentially deny you Medigap coverage or charge higher premiums based on pre-existing conditions. Exceptions exist in states with guaranteed issue protections or birthday rules. In California, Idaho, Illinois, Kentucky, Louisiana, Maine, Maryland, Missouri, Nevada, New Jersey, New York, Oklahoma, and Oregon, you have a 30-day window around your birthday each year to switch Medigap plans without medical underwriting — regardless of your health status. If you live in one of these states and are considering a switch, your birthday window may be your most valuable opportunity to make that move.
The broader policy debate over the Quality Bonus Program matters to you even if you never read a MedPAC report. If Congress acts to reduce or restructure the program, insurers may respond by scaling back the supplemental benefits — dental, vision, hearing, and fitness perks — that many Medicare Advantage enrollees have come to rely on. Plans might also increase premiums or raise cost-sharing to compensate for reduced bonus income. The degree of impact would depend entirely on the specifics of any legislative changes and how individual insurers choose to respond. What's certain is that $13 billion is a large enough number to attract serious political attention, and the program's future is not guaranteed.
For now, the best thing you can do is treat the Annual Enrollment Period — October 15 through December 7 — as your annual financial checkup for healthcare. Don't auto-renew without reviewing your options. If you have questions, call 1-800-MEDICARE (1-800-633-4227), available 24 hours a day, seven days a week. Or contact your State Health Insurance Assistance Program, known as SHIP, which provides free, unbiased counseling in every state. SHIP counselors can walk you through plan comparisons, explain your rights, and help you calculate real costs — with no sales pressure and no commission. The Quality Bonus Program may be a policy debate happening in Washington, but its effects land directly in your mailbox every month in the form of your premium bill, and on your explanation of benefits every time you see a doctor.