Accountable Care Organizations operate in a complex regulatory environment where accurate ACO reporting directly impacts your finances, reputation, and ability to participate in value-based care programs.
Whether you're participating in the Medicare Shared Savings Program (MSSP), reporting through the Alternative Payment Model (APM) Performance Pathway (APP), or managing other value-based care initiatives, one mistake in your reporting can trigger audits, compliance penalties, or worse, disqualification from the program entirely.
Accurate reporting is essential to maintaining compliance and maximizing performance in value-based care programs. This guide walks through the five most common ACO reporting mistakes we see and exactly how to avoid them.
ACO reporting isn't an administrative requirement—it's the foundation of value-based care. CMS uses your reported data to measure whether your organization is actually delivering better care at lower costs, which determines how much shared savings you earn and whether you stay in the program.
The rise of new frameworks like the Medicare Shared Savings Program (MSSP) and Advanced Performance Tracks has made ACO reporting more complex. Organizations now manage multiple reporting requirements simultaneously, quality measures, financial data, utilization metrics, and compliance documentation. Miss deadlines or submit inaccurate data, and CMS doesn't just dock payment. You could face:
The most common ACO reporting mistake is submitting incomplete data or data that contradicts itself across different submission files. This happens because quality and financial data live in different systems that don't talk to each other.
Your quality data might live in an EHR, financial data in your billing system, and utilization data in another vendor's platform entirely. When these systems don't sync automatically, you end up manually pulling data from multiple sources and copying it into submission files. That's where errors creep in, typos, misaligned dates, duplicate records, or missing fields.
CMS runs validation checks on every submission. Even small inconsistencies trigger submission failures or requests for resubmission, which means missed deadlines and delayed payments. Repeated data quality issues may increase scrutiny during validation and compliance reviews.
Use automated validation tools that check data for consistency across all submission files before you send anything to CMS. The best approach:
This sounds like extra work, but it's actually way more efficient than managing crisis submissions because data broke at the last minute.
One of the biggest sources of confusion we see is mixing up the reporting requirements between different ACO models and CMS programs. The Alternative Payment Model (APM) Performance Pathway (APP), the Advanced Performance Tracks (APTs), and MIPS all have overlapping but distinct requirements—and ACOs frequently report the wrong measures or use outdated specifications.
Here's what trips people up:
Many organizations submit data that technically looks correct but doesn't align with the specific APP and MVP requirements they actually need to report. You might submit measures that aren't required, or you might miss measures that are mandatory for your specific track.
Get crystal clear on which program you're actually in and what it requires:
If you're unsure, reach out to CMS directly or work with experts who specialize in ACO compliance. The cost of getting professional guidance once is way cheaper than submitting wrong data and dealing with the fallout.
ACO reporting requires coordination across your entire organization, but quality teams, IT departments, clinical staff, and billing teams often operate in silos. They don't share information, use different data definitions, or have conflicting priorities—which creates gaps in your reporting.
Quality teams might define a measure one way while billing uses a different definition, leading to numbers that don't match. IT doesn't know what data the quality team needs, so reports take weeks to pull. Clinical staff don't understand why they're being asked to document things differently, so compliance deteriorates. Meanwhile, no one person is accountable for making sure everything comes together.
These gaps don't just create inefficiency—they create compliance risk. CMS expects consistency in your reported data. When different departments are using different definitions or workflows, that inconsistency becomes visible in your submissions and triggers questions.
Create structures that force cross-department communication:
When everyone understands how their work contributes to accurate reporting, compliance improves naturally because it becomes part of the culture rather than something IT imposes from above.
This one's simple but incredibly costly: organizations wait until deadline week to start preparing their ACO submissions. By then, it's too late to catch and fix problems, validate data properly, or address missing documentation.
CMS deadlines aren't suggestions, they're firm. If your submission arrives one day late, it doesn't get processed, which means:
Even worse, rushing means you submit data you haven't fully validated. CMS runs checks and often finds errors, which means resubmission cycles, more delays, and more opportunities for compliance issues.
Start planning your submissions months in advance:
Proactive teams catch problems in November and fix them in December. Reactive teams discover problems in March when it's too late and penalties are already baked into the budget.
ACO reporting has become too complex for manual processes and general knowledge. Organizations that try to handle it entirely in-house, without specialized software or expert guidance, consistently make mistakes and waste enormous amounts of staff time.
Here's what most organizations underestimate:
Your quality team is excellent at what they do—but they probably aren't ACO reporting specialists. Asking them to be experts in CMS compliance, data validation, measure specifications, and submission logistics on top of their regular jobs is setting them up to fail.
Medisolv Advisory Services provides exactly this kind of specialized expertise:
The investment in professional support pays for itself by preventing one major compliance issue or missed deadline. Most organizations save $100K+ annually by avoiding penalties and avoiding wasted staff time on problems that could have been prevented.
Medisolv was built specifically for organizations managing complex ACO reporting requirements. We combine automation, compliance expertise, and dedicated support to make sure your submissions are accurate, timely, and fully compliant.
Here's what we provide:
Our platform automatically pulls quality and utilization data from your systems, validates it against current CMS specifications, and flags any inconsistencies before submission. This eliminates manual data entry errors and gives you confidence that your numbers are right.
We track regulatory changes and update measure specifications as CMS releases new guidance. Your team always works with current requirements, so you're never caught off guard by specification changes mid-year.
Our ACO specialists review your data, identify improvement opportunities, and provide actionable guidance on boosting measure performance. We don't just help you report—we help you actually improve your quality and financial outcomes.
From data validation through final submission, we handle the technical complexity so your team can focus on quality improvement. We manage APP, MVP, MSSP, and other ACO model reporting requirements.
You get access to experts who understand your specific program requirements and can troubleshoot issues quickly. No waiting on hold for generic support—you're talking to people who specialize in ACO compliance.
The result: accurate submissions, no penalties, fewer audits, and staff time freed up for actual improvement work rather than resolving avoidable reporting issues.
ACO reporting mistakes are expensive and preventable. The five mistakes outlined above account for the majority of compliance issues we see—and they're all addressable with the right processes, technology, and expertise.
Don't let avoidable errors cost your organization thousands in penalties or missed revenue. Speak with an ACO reporting expert who can evaluate your current process, identify vulnerabilities, and build a solution that works for your organization.