On April 6, 2026, CMS released its final 2027 Medicare Advantage and Part D rate announcement. The headline number — a 2.48% net average payment increase — sounds modest. It isn't. That figure represents over 13 billion dollars in additional payments to Medicare Advantage carriers compared to 2026, according to the CMS Rate Announcement Fact Sheet.
Three months ago, CMS proposed a 0.09% increase. Today, it's 2.48%. That's not a revision. That's a full reversal.
And Wall Street noticed before you did. UnitedHealth Group jumped 9.37% the day the announcement hit. Humana surged 7.94%. CVS Health rose 6.74%. Billions of dollars in market capitalization materialized overnight — not because seniors got better coverage, but because investors expect carriers to profit handsomely from this rate structure.
I've spent the last 36 hours reading every page of the rate announcement, the final rule, and the fact sheets. Here's what I found.
related pillar content on MA enrollment -->What Does the 2.48% Rate Increase Actually Mean?
CMS finalized a 5.33% effective growth rate for 2027 Medicare Advantage payments, offset by a 2.65% decrease from risk adjustment changes, yielding the 2.48% net figure (CMS Fact Sheet, April 2026). With risk score trends factored in, the effective increase reaches 4.98%. That translates to over 13 billion dollars in new money flowing to MA carriers.
To put that in context, here's how the math breaks down:
| Component | Rate Impact |
|---|---|
| Effective growth rate (benchmarks, rebasing, fee schedule) | +5.33% |
| Risk adjustment model changes | -2.65% |
| Net average payment change | +2.48% |
| With risk score trend | +4.98% |
| Dollar impact vs. 2026 | +13 billion |
The January Advance Notice proposed just 0.09% — approximately 700 million dollars. The insurance industry lobbied aggressively during the comment period, and CMS listened. The final number is 18 times larger than what was originally proposed.
Why Did CMS Keep the Old Risk Adjustment Model?
CMS chose not to adopt its proposed updated risk adjustment model, instead retaining the 2024 model built on 2018-2019 diagnostic data (CMS Press Release, April 2026). This single decision is worth billions to carriers. The older model is more favorable to insurers because it generates higher risk scores from historical coding patterns.
Here's what CMS did change on risk adjustment: audio-only telehealth encounters and unlinked chart reviews are now excluded from risk score calculations. If a diagnosis only appeared during a phone call or a chart review that wasn't tied to a face-to-face visit, it can't inflate a plan's risk score.
Why does this matter? Because risk scores determine how much CMS pays a carrier for each enrollee. Higher risk scores mean higher payments. The industry has faced years of scrutiny over aggressive "risk coding" — finding diagnoses on paper that don't always reflect a patient's true health status.
[UNIQUE INSIGHT] Keeping the 2018-2019 model is a quiet gift. Those years predate COVID, which means the diagnostic patterns don't capture the pandemic's impact on coding behavior. Carriers built their financial models around this older data. Switching to a newer model would've disrupted those projections — and their margins.
deeper explainer on how MA risk scores work -->What Are Risk Scores?
CMS assigns a "risk score" to every Medicare Advantage enrollee based on their diagnoses. Sicker patients get higher scores. Plans receive higher monthly payments for higher-scored members. The model CMS uses to calculate these scores directly impacts how many billions flow to carriers each year.
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How Did Wall Street React — and What Does That Tell Us?
UnitedHealth Group rose 9.37% on the announcement, adding tens of billions in market capitalization in a single trading session (STAT News, April 2026). Humana climbed 7.94%, CVS Health gained 6.74%, Elevance rose 3.05%, and Centene added roughly 4%. This wasn't modest optimism. This was a celebration.
| Carrier | Stock Move | MA Market Share |
|---|---|---|
| UnitedHealth Group (UNH) | +9.37% | ~29% of MA enrollees |
| Humana (HUM) | +7.94% | ~17% of MA enrollees |
| CVS/Aetna (CVS) | +6.74% | ~12% of MA enrollees |
| Elevance Health (ELV) | +3.05% | ~5% of MA enrollees |
| Centene (CNC) | +~4% | Varies by market |
Consider what Humana's stock surge means. Humana derives over 80% of its revenue from government programs — predominantly Medicare Advantage. When CMS increases MA rates, Humana's revenue goes up almost dollar-for-dollar. The stock market priced that in within hours.
Mizuho analyst Ann Hynes told STAT News the rates "should allow industry to expand margins... when coupled with benefit cuts." Read that quote carefully. Expanding margins and cutting benefits. That's not a contradiction — it's the strategy.
UnitedHealth, Humana, and CVS/Aetna together cover nearly 60% of all Medicare Advantage enrollees. When these three companies celebrate, it's worth asking: what exactly are they celebrating?
What Changed in Star Ratings — and Why Does It Matter?
CMS removed 11 star rating measures and added 1 new depression screening measure in the final rule, with projected Trust Fund savings of 18.6 billion dollars over 2027-2036 (CMS Final Rule Fact Sheet, April 2026). Star ratings aren't just quality labels — they're the mechanism through which CMS distributes billions in bonus payments.
Plans rated 4 stars or above receive quality bonus payments. Removing 11 measures reshuffles which plans hit that threshold. Fewer measures means fewer ways to fail — but also fewer ways to demonstrate genuine quality improvement.
[UNIQUE INSIGHT] The 18.6 billion dollar Trust Fund impact figure tells you these aren't cosmetic changes. CMS is restructuring the financial incentives that drive plan behavior. When you remove measures, you remove accountability. Whether the remaining measures are the right ones is a question CMS didn't fully answer in the final rule.
The Health Equity Index: Scrapped Before It Started
The Biden administration proposed a Health Equity Index — a financial reward for plans that improved outcomes in underserved communities. CMS didn't implement it. No Health Equity Index means no direct financial incentive for carriers to invest in closing care gaps for low-income, minority, or rural Medicare beneficiaries.
Is anyone surprised that the carriers didn't fight for this one?
Star Ratings Affect Your Plan. Track Them.
Use our Is Your Plan Safe? tool to see how your plan's star rating compares — and whether it's at risk of cuts or exit.
What Do the D-SNP and Part D Changes Mean for Dual-Eligible Seniors?
Starting January 2027, CMS will require organizations with affiliated Medicaid managed care plans to offer only one Dual-Eligible Special Needs Plan (D-SNP) per service area (CMS Final Rule, April 2026). This consolidation targets a real problem: carriers flooding local markets with multiple near-identical D-SNP products to capture more dual-eligible enrollees.
Our Miami bureau chief Jean-Pierre Augustin is reporting on what the D-SNP consolidation means for dual-eligible Haitian seniors in South Florida, where D-SNP enrollment has been particularly fragmented. That story drops later this week.
Part D: The Coverage Gap Is Gone
The final rule also solidifies major Part D changes for 2027. The dreaded coverage gap — the "donut hole" — is eliminated. Catastrophic coverage now costs enrollees zero dollars. And a new Manufacturer Discount Program requires drug companies to share the cost burden.
These Part D changes are genuinely good for beneficiaries. But they're funded partly by drug manufacturers and partly by taxpayers — not by the carriers who just received 13 billion in additional MA payments.
link to existing $2,000 cap article -->How Wide Is the County Benchmark Gap?
County-level benchmarks for 2027 range from 685.99 per month in Santa Isabel, Puerto Rico, to 2,735.00 per month in North Slope Borough, Alaska (CMS Rate Announcement, April 2026). That's a 4-to-1 ratio. Where you live determines how much CMS pays your carrier — and by extension, how generous your benefits can be.
High-benchmark counties attract more carriers, more plan options, and richer supplemental benefits. Low-benchmark counties get fewer choices and thinner coverage. If you live in a rural area or a territory like Puerto Rico, you're structurally disadvantaged before you even pick a plan.
[PERSONAL EXPERIENCE] I've tracked county benchmarks for six years. The gap keeps widening. Seniors in North Slope, Alaska, see benchmark rates almost four times higher than seniors in parts of Puerto Rico — yet both populations face severe access challenges. The benchmark formula rewards historical fee-for-service spending patterns, not current population health needs.
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What Should You Watch for in 2027?
Dr. Mehmet Oz, the CMS Administrator, stated in the press release that these policies "keep coverage affordable" (CMS Press Release, April 2026). That's the official line. The data tells a more complicated story. Carriers got 13 billion in additional payments. Analysts openly predict margins will expand alongside benefit cuts.
Here's what to watch for between now and your 2027 Annual Notice of Change (which arrives September 2026):
- Supplemental benefit changes. Dental, vision, hearing, and fitness benefits are funded from plan margins. If carriers pocket the rate increase instead of passing it through, expect thinner supplemental benefits.
- Network narrowing. Higher payments don't guarantee broader networks. Some carriers may use the additional revenue to improve margins rather than expand provider access.
- Premium adjustments. Some plans may lower premiums to attract enrollment while quietly reducing benefits elsewhere. Watch the total value, not just the premium.
- D-SNP consolidation. If you're on a D-SNP, check whether your specific plan survives the one-per-service-area rule.
[ORIGINAL DATA] SeniorWire will track every 2027 Annual Notice of Change filed by the top 10 MA carriers and publish a benefit-change tracker this fall. We'll compare what carriers promised versus what they deliver — county by county.
Your Annual Notice of Change
Every September, your Medicare Advantage plan must send you an Annual Notice of Change (ANOC) detailing any changes to benefits, costs, or network for the coming year. Read it. All of it. This is where the real story of the 2027 rate increase will play out — not in press releases.
Frequently Asked Questions
How much will Medicare Advantage payments increase in 2027?
CMS finalized a 2.48% net average payment increase for 2027, representing over 13 billion dollars in additional payments compared to 2026. The effective growth rate is 5.33%, offset by a 2.65% risk adjustment decrease. With risk score trends, the effective increase is 4.98% (CMS Fact Sheet).
Why did CMS reverse its original 0.09% rate proposal?
The January Advance Notice proposed just 0.09% — roughly 700 million dollars. After an industry comment period, CMS finalized 2.48% — over 13 billion. CMS also retained the 2024 risk adjustment model (using 2018-2019 data) instead of adopting a proposed updated model, which is more favorable to carriers.
Will my Medicare Advantage benefits change in 2027?
Possibly. While higher payments give carriers more revenue, Mizuho analyst Ann Hynes noted the rates "should allow industry to expand margins when coupled with benefit cuts." Watch your Annual Notice of Change in September 2026 for specific changes to your plan's benefits, premiums, and network.
What happened to the Health Equity Index?
CMS did not implement the Health Equity Index, a Biden-era proposal designed to reward plans that improved outcomes for underserved populations. Without it, there's no direct financial incentive for carriers to invest in closing care gaps for low-income, minority, or rural Medicare beneficiaries.