If you opened your Annual Notice of Change and noticed your Medicare Advantage premium went up — even though your plan name stayed the same — you’re not alone. While many Medicare Advantage plans still advertise low or $0 premiums, individual plan costs can and do shift from year to year. This guide explains the real factors driving these changes and what you can do about it.
1. Medicare Advantage Plans Are Priced Annually — Not Locked In
Unlike a fixed-rate contract, Medicare Advantage plans are essentially repriced every year. Insurers submit new bids to CMS each year based on projected costs, and any changes to that bid — along with changes to your specific plan’s benefit design — directly affect what you pay. This is why even loyal, long-term enrollees can see premium changes without switching plans themselves.
2. Broader Healthcare Cost Trends Affect Every Plan
Several system-wide cost pressures show up in individual premium changes each year:
- Rising medical and pharmaceutical costs — Healthcare prices, particularly for prescription drugs and outpatient procedures, have continued to climb faster than general inflation.
- Increased utilization — As more people use healthcare services (including a growing wave of Medicare-eligible retirees), overall program costs rise, which insurers factor into premium pricing.
- Shift toward outpatient care — More procedures are being performed in outpatient settings rather than traditional inpatient hospital stays, which changes how costs are distributed across Medicare’s payment systems.
3. Medicare Advantage-Specific Cost Drivers
Beyond general healthcare inflation, several factors are specific to how Medicare Advantage is funded:
CMS Payment Rate Changes
Each year, CMS updates the payment rates (“benchmarks”) it pays private insurers per enrolled beneficiary. When these rates change — or when CMS adjusts how it accounts for regional costs or risk — insurers may adjust premiums, benefits, or both in response.
Star Ratings and Bonus Payments
Medicare Advantage plans that earn high Star Ratings (a CMS quality scoring system) receive bonus payments that can help keep premiums lower and fund extra benefits. If a plan’s Star Rating drops, it can lose access to these bonus payments, which may result in higher premiums or reduced benefits the following year.
Risk Adjustment and Enrollee Health Profile
Insurers receive different payments depending on the average health risk of their enrolled population. Shifts in this calculation — including recent policy scrutiny over how accurately these risk scores reflect actual care needs — can affect how insurers price their plans going forward.
Insurer Business Decisions
Some insurers reduce or eliminate $0-premium plan options in certain markets due to rising costs or changing federal requirements, shifting more of the cost directly onto enrollees through higher premiums rather than fully absorbing it as a subsidized offering.
4. A Bigger Policy Debate Worth Understanding
There’s an important, ongoing policy discussion about Medicare Advantage costs at a national level. According to a 2026 congressional report, Medicare Advantage payments to insurers have significantly exceeded what the same coverage would have cost under Original Medicare — a gap in the tens of billions of dollars nationally. This dynamic has drawn increased scrutiny from lawmakers and contributes to the broader financial pressures shaping how insurers price plans and structure benefits each year. This is a genuinely contested policy topic, with insurers, advocacy groups, and policymakers offering different perspectives on the causes and solutions — worth knowing about as background, even though it doesn’t change what you owe today.
5. What You Can Do About a Premium Increase
- Read your Annual Notice of Change (ANOC) carefully each September — it will explain exactly what’s changing in your specific plan for the coming year.
- Don’t assume your current plan is still your best option — Since premiums, benefits, and networks can shift annually, comparing plans during Open Enrollment (October 15 – December 7) each year is worth the time, even if you’ve been happy with your plan.
- Look beyond the premium alone — A plan with a low premium but higher copays or a smaller network could still cost more overall depending on how much care you use.
- Check if your Star Rating-linked benefits changed — A drop in your plan’s rating may explain reduced extras or a higher cost, even if the core coverage looks similar.
- Use the Medicare Plan Finder at Medicare.gov to directly compare your renewed plan against other options available in your area.
Final Thoughts
A Medicare Advantage premium increase is rarely random — it typically reflects a combination of rising healthcare costs, CMS payment rate adjustments, your plan’s Star Rating performance, and broader insurer business decisions. Since none of these factors are fixed year to year, reviewing your plan’s ANOC and comparing alternatives annually is the most reliable way to make sure you’re still getting the best value for your specific healthcare needs.
Disclaimer: This article is for general informational and educational purposes only and does not constitute medical, financial, or legal advice. Medicare Advantage premiums, benefits, and payment structures are set annually and vary by plan, insurer, and location. Always verify current details through official sources such as Medicare.gov, your plan’s Annual Notice of Change, or a licensed Medicare representative before making enrollment decisions. This site is not affiliated with or endorsed by the U.S. government or CMS.