8 Key Medicare Advantage Numbers for 2026

Introduction

Medicare Advantage continues to reshape the U.S. healthcare landscape. Early 2026 brought a wave of new reports from MedPAC, Congress, and leading research institutions. These reports shed fresh light on the program’s trajectory. Furthermore, insurers and CMS have questioned some of the methodology behind these figures — even on the Congressional floor. Despite ongoing debate, eight key data points define where Medicare Advantage stands today.

Medicare Spending and Savings Data

The $111 Billion Savings Estimate

The Elevance Public Policy Institute published a March 23 study on MA enrollment and total Medicare spending. Researchers found that a 10-percentage-point rise in MA penetration linked to 1.5% lower total Medicare spending per capita. As a result, cumulative savings from 2012 to 2021 are estimated at $111 billion — compared to a scenario where MA penetration held at 2011 levels. After adjusting for coding intensity, however, the spending reduction drops to 1.1%. Consequently, estimated savings fall to approximately $83 billion instead.

MA Payments Exceed Traditional Medicare by 14%

MedPAC’s March 2026 report confirmed that Medicare Advantage payments will be 14% higher than traditional Medicare this year. That gap translates to $76 billion in additional federal spending. Moreover, this figure continues to fuel debate among policymakers about the program’s long-term financial sustainability.

Enrollment Growth and Diversification

Record 35.4 Million Beneficiaries

A February 26 report from HealthScape Advisors and Chartis confirmed that MA enrollment grew 2.5% in 2026, reaching a record 35.4 million beneficiaries. Nevertheless, the growth rate is slower than in 2025 — signaling a potential plateau. Additionally, enrollment dropped in seven states for the first time: Vermont, Wyoming, New Hampshire, Idaho, Minnesota, Maryland, and South Dakota.

Special Needs Plan Enrollment Surges

Research in the American Journal of Managed Care highlights how MA enrollment has diversified significantly. Specifically, special needs plan enrollees grew from just 2.6% to 14.8% of total MA enrollment between 2012 and 2022. This shift reflects a broader push to serve higher-acuity populations through managed care models.

Overpayments and Premium Impact

$13.4 Billion in Extra Part B Premiums

The Congressional Joint Economic Committee determined that Medicare Part B premiums absorbed an additional $13.4 billion in 2025 due to MA overpayments. Consequently, this burden affected all Medicare beneficiaries — not only those enrolled in MA plans. Critics argue that this represents a hidden cost of the program’s rapid growth.

Plan Exits and Enrollment Disruptions

One in Ten Enrollees Forced to Switch Plans

A JAMA study found that one in 10 MA enrollees needed to disenroll from their plans due to insurer exits going into 2026. This disruption affected millions of seniors who faced difficult decisions about new plan options. Furthermore, these exits often cause benefit losses and care continuity concerns for vulnerable populations.

Coding Intensity Discrepancies

A 2% vs. 10% Coding Gap Debate

A January Health Affairs Scholar analysis — co-authored by CMS leaders — identified a roughly 2% coding intensity differential between Medicare Advantage and original Medicare for 2022. However, MedPAC estimated the same gap at 10%. This divergence matters greatly because coding intensity directly shapes risk adjustment payments and overall program costs. Both figures carry significant policy implications for the industry.

What These Numbers Mean for Stakeholders

Together, these eight data points paint a complex portrait of Medicare Advantage in 2026. On one hand, the program now covers more beneficiaries than ever before. On the other hand, overpayment concerns, insurer exits, and enrollment volatility signal growing structural challenges. Payers, policymakers, and providers must therefore monitor these trends closely as the year unfolds.

Health plan executives plan to convene at the Becker’s 5th Annual Fall Payer Issues Roundtable in Chicago (November 2–3). Topics will include value-based care models, regulatory shifts, and cost management strategies shaping payer-provider collaboration.

Conclusion

Medicare Advantage in 2026 is a program defined by both scale and scrutiny. It covers record numbers of beneficiaries and generates billions in estimated savings. Yet it also costs taxpayers far more than traditional Medicare. As new data continues to emerge, stakeholders across the healthcare ecosystem must stay informed and agile. These eight numbers offer a strong starting point for understanding what lies ahead for the program.