The End of Easy Money: CMS's 2027 Medicare Advantage Proposal Changes Everything

IMC Board
Feb 4
5 min read

CMS's proposed 0.09% payment increase and chart review crackdown signals a seismic shift in Medicare Advantage economics that will separate operationally excellent insurers from those reliant on aggressive coding strategies.

Key Takeaways:

CMS proposes a mere 0.09% payment increase for Medicare Advantage plans in 2027, far below industry expectations
Chart review diagnoses unlinked to actual medical encounters will be excluded from risk scoring, potentially saving Medicare $7.2 billion
Major insurers face varying levels of exposure, with UnitedHealth's MA business most impacted on a per-member basis
Star Ratings program modifications could affect quality bonus payments and rebates
Comment period closes February 25, 2026, with final rule expected by April 6

The U.S. Centers for Medicare and Medicaid Services (CMS) just delivered a wake-up call to the Medicare Advantage (MA) industry that could fundamentally alter how insurers approach risk adjustment, coding practices, and operational efficiency for 2027.

Will a Nearly Flat Rate Reshape Your Medicare Advantage Strategy?

In a proposed rule released on January 26, CMS announced a nominal 0.09% payment increase for Medicare Advantage plans next year. This translates to approximately $700 million flowing to MA plans across the industry, yet the figure falls dramatically short of Wall Street's projections, which anticipated increases between 5% and 6%.

The message is clear: the era of aggressive coding strategies and chart review optimization may be approaching its end.

Chart Review Crackdown: A $7.2 Billion Impact

The most significant policy shift in CMS's proposal targets chart reviews that aren't linked to actual medical care. Under the new framework, insurers would no longer receive risk-adjusted payments for diagnoses that appear solely in retrospective chart reviews without corresponding medical encounters.

This represents a fundamental recalibration of how risk adjustment operates in Medicare Advantage.

Research reveals the scope of this practice. According to recent analysis, 62% of Medicare Advantage enrollees had at least one chart review record in 2022, with diagnoses added from these reviews increasing payments for one in six enrollees (17%). The financial implications are substantial: chart reviews drove an estimated $24 billion in additional payments to MA plans in 2023 alone.

The disparity in chart review usage across major insurers tells an important story. CVS Health (86% of enrollees with chart reviews), Elevance Health (82%), and UnitedHealthcare (77%) demonstrate significantly higher utilization rates compared to Humana (34%) and Kaiser Permanente (27%). More critically, Centene and UnitedHealthcare had diagnoses added for 26% and 23% of their respective enrollees through these reviews.

Strategic Consideration

Insurers heavily reliant on chart review-driven risk scores must rapidly pivot toward documentation quality improvements at the point of care. The competitive advantage will shift to organizations that excel at capturing accurate, encounter-based diagnoses in real-time clinical workflows.

Risk Adjustment Model Evolution Continues

CMS isn't stopping with chart reviews. The proposed rule maintains the controversial V28 risk-adjustment model, CMS's updated payment formula that uses more recent data to calculate reimbursement based on patient health status, while implementing several refinements that carriers should note.

The agency plans to update the underlying data, utilizing diagnosis and expenditure information from 2023 and 2024 rather than the outdated 2018 and 2019 records. This modernization aims to reflect more current cost patterns and disease burden across the Medicare population.

Additionally, CMS proposes excluding diagnoses derived from audio-only telehealth encounters from risk score calculations. This provision acknowledges concerns about the documentation quality and clinical rigor of telephone-only visits compared to video or in-person care.

Star Ratings Program Modifications Create New Opportunities

The proposed rule introduces meaningful changes to the Medicare Advantage Star Ratings system, which directly impacts quality bonus payments and plan rebates. CMS has outlined specific modifications to the Categorical Adjustment Index, which adjusts payments based on socioeconomic status and disability factors.

The agency also updated guidance on natural disaster qualifications for special dispensation, providing clearer pathways for plans facing extraordinary circumstances beyond their control.

These Star Ratings adjustments build upon CMS's broader November 2024 initiative to overhaul the quality measurement program. For insurers, Star Ratings remain a critical lever for financial performance, with high-performing plans receiving enhanced funding that can be reinvested in richer benefit packages to attract members.

Operational Insight

Organizations should conduct immediate impact assessments on their current Star Ratings positions under the proposed modifications. Plans on the cusp of quality tier thresholds may find opportunities to optimize specific measures and secure bonus payment eligibility.

Industry Response and Market Implications

The health insurance industry's reaction has been swift and predictable. America's Health Insurance Plans (AHIP), the industry trade association, warned that flat program funding during a period of sharply rising medical costs and high care utilization could force benefit reductions and higher member costs for the 35 million seniors and people with disabilities enrolled in Medicare Advantage.

Market response underscored the financial gravity. Following the advance notice release, shares of major publicly traded payers plummeted in after-hours trading: Humana dropped 12%, while UnitedHealth and CVS fell 9%, and Elevance declined 5%.

These market reactions reflect investor concerns about margin compression and the potential need for operational restructuring to maintain profitability under tighter payment constraints.

PACE Program Alignment Advances

CMS reiterated its commitment to aligning Medicare Advantage risk adjustment with the model used for the Program of All-Inclusive Care for the Elderly (PACE). This multi-year effort aims to create greater consistency across different Medicare delivery models and ensure that payment methodologies reflect comparable principles for similar patient populations.

For insurers operating both MA plans and PACE organizations, this alignment may simplify actuarial modeling and reduce administrative complexity over time.

What Insurance Carriers Should Do Next

The comment period represents a crucial opportunity for industry engagement. Organizations should:

Analyze financial exposure—Model the specific impact of chart review exclusions on your organization's risk scores and projected revenues. Identify which enrollee segments and geographic markets face the greatest adjustment.
Strengthen clinical documentation—Invest in provider education and electronic health record optimization to capture comprehensive diagnosis coding at the point of care. The future advantage belongs to plans with robust encounter-based documentation, not retrospective mining.
Review star ratings positioning—Assess how the proposed measurement changes affect your quality bonus payment eligibility. Target strategic interventions on measures where improvement yields the highest return.
Engage in the comment process—Submit detailed, data-driven comments to CMS by February 25 that articulate your organization's perspective while contributing constructively to policy development.
Prepare for implementation—Regardless of final rule modifications, the trajectory is clear: CMS is tightening payment accuracy requirements. Proactive organizations that adapt ahead of implementation will minimize disruption.

Sources:

Modern Healthcare: How Biden transformed Medicare Advantage
U.S. Centers for Medicare & Medicaid Services (CMS): Advance Notice of Methodological Changes for Calendar Year (CY) 2027 for Medicare Advantage (MA) Capitation Rates and Part C and Part D Payment Policies
Healthcare Dive: CMS proposes excluding chart reviews from MA risk scoring in 2027 payment rule
U.S. Centers for Medicare & Medicaid Services (CMS): Contract Year 2027 Medicare Advantage and Part D Proposed Rule
KFF: Chart Reviews Increase Payments to Medicare Advantage Insurers for 1 in 6 Enrollees
The Commonwealth Fund: How Risk Adjustment Affects Payment for Medicare Advantage Plans
Health Affairs: In-Home Health Risk Assessments And Chart Reviews Contribute To Coding Intensity In Medicare Advantage

Further Thoughts

This proposed rule represents more than technical payment adjustments. It signals a fundamental policy shift toward constraining Medicare Advantage spending growth and addressing longstanding concerns about coding intensity disparities between MA and traditional Medicare.

CMS Administrator Dr. Mehmet Oz framed the proposal around strengthening payment accuracy, protecting taxpayers from unnecessary spending, and ensuring beneficiaries retain affordable plan choices with reliable benefits. Whether these goals can be simultaneously achieved remains the central question facing the industry.

For insurers, the path forward demands operational excellence in clinical documentation, strategic sophistication in quality program management, and financial discipline in benefit design. Organizations that continue relying on aggressive coding optimization rather than genuine care management will find themselves increasingly disadvantaged.

The comment period closes February 25, 2026, with the final rule expected by April 6. What happens next will shape Medicare Advantage economics for years to come.