What Is the CMS Innovation Center?
The Center for Medicare and Medicaid Innovation (CMMI), also called the CMS Innovation Center, launched under the Affordable Care Act (ACA) in 2010. Its core mission was straightforward: design, test, and scale new healthcare payment models. Specifically, Congress directed CMMI to lower spending across Medicare, Medicaid, and the Children’s Health Insurance Program (CHIP) while maintaining or improving care quality.
To fund this mission, Congress authorized $20 billion in total. It allocated two separate tranches of $10 billion — one at launch in fiscal year 2011 and another in 2020. Furthermore, the ACA mandated an additional $10 billion every subsequent decade. These funds operate outside the annual appropriations process, giving CMMI significant financial independence.
How Much Did CMMI Spend in One Decade?
Between fiscal years 2011 and 2020, the Innovation Center committed to spending $11.4 billion. However, actual outlays reached $7.9 billion, according to a March 27 report from the Government Accountability Office (GAO). The Congressional Budget Office (CBO) confirmed this figure through an independent analysis.
This $7.9 billion covered employee costs, model infrastructure, evaluations, and program operations. In total, CMMI launched more than 70 payment models during its first decade. Each model aimed to transform how providers receive payment — shifting from fee-for-service toward value-based care arrangements.
Did the Innovation Center Actually Save Money?
The Net Spending Increase
Unfortunately, CMMI did not generate the savings originally projected. The CBO, in its September 2023 analysis, determined that the center’s $7.9 billion in spending contributed to only $2.6 billion in reduced benefit payments. As a result, the net increase to federal spending reached approximately $5.4 billion — equivalent to about 0.1% of total Medicare outlays during that period.
Initially, policymakers and analysts expected CMMI to reduce federal healthcare spending. Instead, the center added costs. This outcome reversed earlier CBO projections that had anticipated substantial savings across the decade.
Why Did Costs Outpace Savings?
Several structural issues drove poor financial outcomes. First, most CMMI models were voluntary, which required generous financial incentives to attract provider participation. These incentives raised overall costs. Second, benchmark designs allowed targets to shift over time, making it easier for participants to appear successful without generating real savings. Third, the center prioritized quality metrics that did not always translate into measurable cost reductions.
Moreover, CBO projects that CMMI will increase federal spending by an additional $1.3 billion between fiscal years 2021 and 2030. Therefore, the center’s financial trajectory raises serious questions about its model design strategy.
Which Payment Models Survived Beyond Testing?
Only Four Models Cleared the Bar
Out of more than 70 models tested, only four advanced beyond the testing phase. These four models either operate independently or have merged into existing federal programs:
- Pioneer ACO Model — an early accountable care organization approach focused on Medicare beneficiaries
- Medicare Diabetes Prevention Program — a preventive care initiative later folded into standard Medicare coverage
- Repetitive Scheduled Non-Emergent Ambulance Transport Model — targeting non-emergency transport efficiency
- Home Health Value-Based Purchasing Model — linking home health payments to quality outcomes
What Standards Must Models Meet?
For a model to qualify for nationwide expansion, it must demonstrate a 90% to 95% likelihood of reducing federal spending. Alternatively, models may expand if they prove improvements in care quality without raising costs. Notably, CMS has not yet expanded any model based solely on quality improvements. Expansion also requires certification from the CMS chief actuary.
What Does the GAO Report Say?
The March 27 GAO report confirmed the CBO’s findings and raised broader accountability concerns. House Budget Committee Chairman Jodey Arrington responded directly, calling for reform. The report highlighted that CMMI incurred a net loss of $5.4 billion in its first decade — a result the chairman described as a failure of the program’s core mission.
Nevertheless, some officials remain optimistic. Under the current administration, CMS leadership has pledged to realign CMMI’s strategy around reducing waste, fraud, and unnecessary spending. CMS released a new three-pillar strategy in May 2025, centered on evidence-based prevention, patient empowerment, and competition-driven savings.
What Comes Next for CMMI?
A Renewed Strategic Direction
Going forward, CMMI faces pressure to demonstrate measurable financial results. Policy analysts suggest that mandatory models — rather than voluntary ones — may generate stronger savings outcomes. Additionally, retrospective benchmarks that remove discretion from model administrators could improve accountability.
Some reform proposals recommend that CMMI focus exclusively on a limited number of high-impact demonstrations rather than spreading resources across dozens of experimental models simultaneously. If these structural reforms fail to produce results, calls to terminate the center altogether are likely to grow louder.
Congressional Oversight Increases
Congress is now watching CMMI more closely than ever. The GAO report has triggered bipartisan scrutiny. As a result, future CMMI models will likely face stricter evaluation criteria before receiving large-scale funding commitments.
Key Takeaways for Healthcare Stakeholders
- CMMI spent $7.9 billion between 2011 and 2020 across more than 70 payment models.
- The center generated only $2.6 billion in benefit savings — a net federal cost of $5.4 billion.
- Only 4 of 70+ models survived beyond the testing phase.
- CBO projects CMMI will add another $1.3 billion in federal costs through 2030.
- Structural flaws — voluntary participation, weak benchmarks, misaligned incentives — drove poor outcomes.
- New CMS leadership has committed to reform under a revised three-pillar strategy launched in May 2025.
