CEO Executive AssistantAccountable Care Organizations (ACOs) represent one of the most significant operational experiments in healthcare delivery: the attempt to align financial incentives across a network of providers to deliver better quality care at lower cost. For CEOs leading ACOs, whether Medicare Shared Savings Program (MSSP) ACOs, commercial ACOs, or Next Generation and REACH model participants, the operational requirements are substantial. Care coordination infrastructure, quality measurement, data analytics, network management, and risk contracting expertise all must work in concert to achieve the shared savings and quality outcomes that justify ACO participation. Building high-performing ACO operations is among the most complex and consequential challenges in healthcare management.
Understanding the ACO Operating Model
An ACO is a group of doctors, hospitals, and other health care providers who come together voluntarily to give coordinated high quality care to their patients. The economic model of ACOs is based on shared savings: if the ACO reduces the total cost of care for its attributed patient population below a benchmark while meeting quality standards, it earns a share of those savings. More advanced ACO models include downside risk, where the ACO also bears a portion of any excess costs above the benchmark.
The transition from volume-based to value-based payment models represented by ACOs requires profound changes in how care is organized and delivered. CEOs must build operational capabilities that may not exist in traditional fee-for-service environments: population health management, care coordination for high-risk patients, analytics to identify patients who need intervention before they become expensive, and the organizational culture needed to get diverse providers to collaborate effectively.
The ACO’s attributed patient population is typically determined by Medicare’s assignment algorithm (for MSSP ACOs) or by enrollment (for commercial ACOs). CEOs must understand the attribution methodology and its implications for the ACO’s performance: which patients are attributed, how attribution changes from year to year, and what the implications of attribution variability are for population management.
Population Health Management Operations
Population health management is the operational foundation of ACO success. It requires identifying patients at elevated risk of preventable illness, hospitalization, or costly care; coordinating proactive outreach and care management; and tracking outcomes across the attributed population.
Risk stratification is the first step in population health management. CEOs should invest in risk stratification tools that use claims data, electronic health record data, and sometimes social determinants of health data to segment the attributed population by risk level. High-risk patients, typically those with multiple chronic conditions, frequent hospitalizations, or complex social needs, require intensive care management. Rising-risk patients benefit from preventive interventions before their conditions deteriorate. Low-risk patients are best served through health promotion and preventive care.
Care management programs for high-risk patients typically include assigned care managers (nurses or social workers who coordinate care across providers), regular outreach and check-ins, medication reconciliation, chronic disease management support, and coordination of social services when social needs are contributing to health risks. CEOs should invest in care management infrastructure that provides care managers with the tools, information, and workflows needed to effectively manage complex patient populations.
Transition of care programs are particularly important for ACO performance. Hospital readmissions are a major driver of ACO costs, and effective post-discharge follow-up can significantly reduce readmission rates. CEOs should build transition of care protocols that include discharge planning, prompt post-discharge follow-up contacts, medication reconciliation, and primary care follow-up scheduling.
Quality Measurement and Improvement Operations
ACO performance is evaluated on quality measures as well as cost. For MSSP ACOs, CMS measures performance on a set of quality measures covering preventive care, chronic disease management, patient experience, and care coordination. Meeting quality thresholds is required for shared savings eligibility, and quality performance affects the share of savings the ACO earns.
CEOs should build quality measurement infrastructure that provides timely, accurate performance data for all required quality measures. This requires data integration from multiple sources: EHR systems, claims data, laboratory results, and patient experience surveys. Quality measure calculation must be transparent and auditable, and CEOs should ensure that the ACO’s quality performance data is reviewed regularly and that improvement initiatives are targeted to measures where performance is below benchmark.
Physician engagement is essential for quality improvement. ACOs cannot improve quality measures without the active participation of the physicians who deliver care, and engaging a diverse network of independent and employed physicians in quality improvement activities requires strong leadership, clear communication about performance data, and alignment of physician incentives with ACO quality goals. CEOs should establish physician engagement programs that provide regular feedback on individual and panel-level quality performance and that create peer learning opportunities around best practices.
For guidance on broader healthcare operations strategy, see the healthcare operations guide.
Financial Management and Risk Contracting
ACO financial management involves several distinct financial operations that may be unfamiliar to CEOs coming from traditional fee-for-service environments. Benchmark setting, performance period reconciliation, shared savings distribution, and downside risk management all require specialized financial capabilities.
The ACO benchmark, the target total cost of care against which actual performance is measured, is set by CMS (for MSSP) or by the payer (for commercial ACOs) using historical cost data with adjustments for risk and trends. CEOs must understand the benchmark methodology and monitor how actual performance tracks against the benchmark throughout the year. Early identification of cost trends that threaten performance gives the ACO time to intervene before year-end reconciliation.
Shared savings distribution, the allocation of earned savings among ACO participants, is one of the most operationally and politically complex aspects of ACO management. Distribution methodologies must balance rewarding participants who contributed most to savings with maintaining network cohesion and aligned incentives. CEOs should develop distribution models that are transparent, data-driven, and aligned with the ACO’s strategic priorities, and should communicate the methodology clearly to participants.
For ACOs taking on downside risk, financial reserves must be maintained to cover potential loss sharing obligations. CEOs must ensure that the ACO has adequate reserves for the risk it has accepted and that financial monitoring identifies deteriorating cost trends before they create large unexpected losses.
Network Development and Physician Alignment
The quality of an ACO’s provider network directly determines its ability to manage cost and quality for the attributed population. CEOs must build networks that provide comprehensive, coordinated care across the continuum: primary care, specialty care, hospital services, post-acute care, behavioral health, and pharmacy.
Physician alignment with ACO goals is the most critical network development challenge. Independent physicians who participate in ACOs while maintaining their own practices have limited contractual obligation to change their practice patterns. Aligning their behavior with ACO goals requires a combination of financial incentives, performance transparency, clinical decision support, and organizational culture building.
Post-acute care utilization is a major driver of total cost of care in ACOs. Skilled nursing facility (SNF) use, home health services, and inpatient rehabilitation facility costs represent a significant share of ACO expenditures. CEOs should build preferred post-acute care networks that direct patients to high-quality, cost-efficient providers and establish care protocols that guide appropriate post-acute care transitions.
Data Infrastructure and Analytics
Data is the operational currency of ACO management. CEOs must invest in data infrastructure that integrates clinical data from multiple EHR systems, claims data from multiple payers, and other relevant data sources into a unified analytics platform that supports population health management, quality measurement, financial monitoring, and care coordination.
Interoperability challenges are significant in ACO data management. Attributed patients receive care from multiple providers using different EHR systems, and assembling a complete longitudinal patient record requires data exchange across system boundaries. Investment in health information exchange (HIE) connectivity, FHIR API integration, and data integration platforms is essential for building the complete view of patient populations that effective ACO management requires.
For an operational checklist covering ACO and other healthcare CEO priorities, the healthcare CEO checklist provides actionable guidance.
Governance and Organizational Structure
ACO governance structures vary based on organizational type. Hospital-led ACOs, physician-led ACOs, and payer-sponsored ACOs each have different governance dynamics and potential conflicts of interest. CEOs must design governance structures that are transparent, representative of key stakeholder groups, and capable of making the collective decisions needed to manage population health effectively.
Physician governance representation is particularly important. ACOs that give physicians meaningful voice in governance decisions about care protocols, quality priorities, and resource allocation are more successful at generating physician engagement than those where physicians feel like passive participants in hospital-driven or payer-driven programs. CEOs should invest in governance structures that balance efficiency with genuine inclusivity for physician participants.
Building a high-performing ACO requires sustained executive commitment to cultural change, operational investment, and the patience to see population health management strategies produce results over time. CEOs who bring the operational rigor and strategic clarity needed to navigate this complexity will lead ACOs that genuinely improve health outcomes and create sustainable value for patients, providers, and payers.
Related Reading
For further context, explore Healthcare CEO Business Operations Checklist and Addiction Medicine CEO Business Operations: Leadership Strategies for Executive Teams.