Introduction
The landscape of public health insurance in the United States has undergone a seismic shift over the past six years. From the temporary stability provided by the pandemic-era continuous enrollment provision to the complex, state-led "unwinding" process that followed, the Medicaid and Children’s Health Insurance Program (CHIP) have remained at the center of the American social safety net. As of April 2026, new data from the Centers for Medicare & Medicaid Services (CMS) provide a clearer picture of how these programs are evolving, particularly as federal policy pivots toward new requirements for enrollees.
This report synthesizes the latest enrollment trends, examines the historical context of the post-pandemic era, and explores the long-term implications of the 2025 federal budget reconciliation law.
Main Facts: The State of Enrollment in 2026
As of April 2026, the Medicaid and CHIP programs are entering a new phase of administrative oversight. While enrollment numbers are updated monthly, the current data highlight a shift in how millions of Americans interact with these programs.
- The Scope: Current CMS data track millions of full-benefit enrollees across the United States. It is important to note that these figures do not represent the total population of individuals receiving any form of Medicaid assistance, as they exclude those receiving limited-benefit packages, such as family-planning-only coverage.
- Data Reliability: The latest figures—preliminary as of April 2026—suggest that while enrollment volatility has stabilized following the intense period of redeterminations during the "unwinding," the programs remain sensitive to shifting economic conditions and state-level policy changes.
- Excluded Populations: Due to reporting inconsistencies in states like Arizona, national totals must be viewed with the caveat that they do not represent a perfect nationwide census.
Chronology: From Pandemic Stability to New Requirements
The Pre-Pandemic Baseline (February 2020)
Before the onset of COVID-19, Medicaid enrollment was subject to the typical fluctuations of the business cycle and state-specific policy adjustments. February 2020 serves as the critical "pre-pandemic baseline." It marks the final month before the implementation of the Families First Coronavirus Response Act’s "continuous enrollment" provision, which prohibited states from disenrolling people from Medicaid during the public health emergency.
The Era of Continuous Enrollment (2020–2023)
For three years, the continuous enrollment provision acted as a firewall, ensuring that millions of children, adults, and individuals with disabilities did not lose coverage, regardless of changes in their income or eligibility status. This period saw record-high enrollment levels as the program became the primary source of financial and health security for a significant portion of the U.S. population.
The Unwinding (2023–2024)
Beginning in early 2023, states were permitted to resume eligibility redeterminations. This "unwinding" was a massive administrative undertaking. By September 2024, when the final comprehensive tracking of this period was concluded, it was clear that the process had significantly altered the coverage landscape. Millions were disenrolled, often due to "procedural reasons"—a term that encompasses administrative errors, missed renewal forms, and communication gaps rather than actual ineligibility.
The 2025 Reconciliation Law (2025–Present)
The current era is defined by the 2025 federal budget reconciliation law. This legislation introduced major structural changes, most notably the implementation of work and reporting requirements for specific populations, including adults in the Medicaid expansion group and those covered under certain 1115 waivers. While these requirements are set to fully commence in January 2027, their looming presence is already shaping state policy and enrollee expectations.
Supporting Data: Dissecting the Trends
The Mechanics of Disenrollment
Data collected through September 2024 reveal a sobering reality regarding the "unwinding." Analysis of state-reported data shows that of those who were disenrolled, approximately 69% were terminated for procedural reasons. This highlights a systemic challenge: even when individuals remain eligible for coverage, the administrative burden of renewing that coverage can lead to significant gaps in insurance.
Furthermore, there is wide regional variation in how these transitions were handled. States like Montana reported disenrollment rates as high as 57% of completed redeterminations, while states like North Carolina saw rates as low as 12%. These discrepancies underscore the importance of state-level outreach and administrative efficiency.
Ex Parte Renewals
A key metric in assessing the health of the enrollment system is the "ex parte" renewal rate. An ex parte renewal occurs when the state automatically verifies a person’s eligibility using existing data sources, such as tax records or other government databases, without requiring the enrollee to submit a new application. As of September 2024, approximately 61% of individuals who retained coverage were renewed through this process. Increasing this rate is a primary goal for advocates seeking to reduce the number of people who lose coverage due to administrative hurdles.
Official Responses and Policy Implications
The Impact of Work Requirements
The 2025 reconciliation law is projected to have a downward pressure on total Medicaid enrollment over the next decade. By introducing work and reporting requirements, the federal government has fundamentally changed the criteria for participation. Critics of these requirements argue that they place an undue burden on low-income workers with irregular schedules, often leading to "churn"—a cycle where people cycle on and off the program due to minor fluctuations in work hours.
Conversely, proponents suggest that these requirements encourage workforce participation and ensure that federal resources are directed toward those most in need. The KFF "Tracking Implementation of the 2025 Reconciliation Law" project continues to monitor these effects, providing essential data for policymakers to assess whether these requirements achieve their stated goals without causing undue harm to public health.
Addressing the "Procedural" Gap
The high rate of procedural disenrollment has prompted a call to action from federal regulators and advocacy groups. CMS has encouraged states to adopt "Express Lane Eligibility" and other simplification strategies to ensure that eligible individuals do not lose their coverage simply because of a missing piece of mail or an unread digital notification.
Future Outlook
As we move further into 2026 and approach the full implementation of the 2027 work requirements, the role of data-driven oversight becomes more critical than ever. The current trends suggest that while the "unwinding" phase has officially ended, the period of adjustment for the Medicaid program is far from over.
The stability of the safety net now depends on three pillars:
- Administrative Transparency: States must continue to report clear, accurate data on why enrollees are being disenrolled.
- Technological Integration: Improving the "ex parte" renewal process is the most effective way to protect eligible enrollees from the pitfalls of administrative complexity.
- Ongoing Evaluation: The impact of the 2025 reconciliation law must be studied rigorously. As enrollment numbers fluctuate in response to the new work requirements, policymakers must remain agile to prevent a surge in the uninsured rate among low-income families.
For stakeholders, researchers, and participants, the monthly reports provided by CMS remain the definitive source for understanding the pulse of the American health care system. While the data is often preliminary and subject to revision, it provides the roadmap necessary to navigate the ongoing evolution of Medicaid and CHIP.
For questions or data inquiries regarding this tracker, stakeholders may reach out to relevant policy analysis organizations or consult the official CMS "Performance Indicator Project" archives. As these programs continue to adapt to federal mandates, maintaining a clear view of the enrollment landscape remains essential for protecting public health access.
About the Author
