Accountable care organizations represent one of the most consequential experiments in US healthcare payment reform. Under the Medicare Shared Savings Program (MSSP) and commercial ACO contracts, these organizations accept responsibility for the total cost and quality of care for attributed patient populations — a model that rewards efficiency and quality outcomes, and penalizes waste and poor performance.
Delivering on ACO performance targets is as much an operational challenge as a clinical one. The administrative work of running an ACO — care gap identification and outreach, quality measure reporting, provider performance monitoring, patient attribution management, and network coordination — is substantial. Virtual assistants are increasingly being deployed to handle that work.
The ACO Administrative Burden
CMS data from the 2023 MSSP performance year shows that ACOs participating in the program collectively achieved $1.8 billion in shared savings — but those savings come alongside significant administrative investment. ACOs must track quality measures across HEDIS domains, manage provider reporting requirements, coordinate care transitions, and maintain accurate patient attribution rosters. Each of these functions requires dedicated staff.
A 2022 study published in Health Affairs found that ACO administrative costs average $15–$35 per attributed member per year, depending on the size and complexity of the organization. For an ACO with 50,000 attributed lives, that represents $750,000–$1.75 million in annual administrative spend.
The question for ACO leaders is not whether this work needs to be done — it does — but whether it needs to be done by expensive in-house staff.
What VAs Handle in ACO Operations
Care gap outreach. VAs conduct outbound outreach to patients with open care gaps — overdue preventive screenings, HbA1c monitoring gaps, medication adherence lapses — using scripts and protocols designed by clinical leadership. Consistent, high-volume outreach is the core driver of HEDIS score improvement.
Provider engagement and performance reporting. VAs support the provider relations function by distributing monthly performance reports, coordinating care management referrals between primary care and specialist networks, and following up on outstanding referral loops.
Patient attribution management. Keeping patient attribution rosters accurate requires ongoing reconciliation of enrollment data, insurance verification, and provider assignment. VAs handle this data maintenance work.
Quality measure data collection. HEDIS measure closure often requires supplemental data that is not available in claims — lab results, visit records, clinical documentation. VAs conduct chart review outreach to provider offices to collect this supplemental data.
Meeting coordination and documentation. ACO governance involves regular meetings of clinical leadership, payer liaisons, and quality teams. VAs manage scheduling, prepare materials, distribute agendas, and document action items.
Efficiency Gains That Improve Shared Savings
In an MSSP ACO, every percentage point improvement in quality performance contributes to the shared savings calculation. VAs dedicated to care gap outreach and quality data collection are, in a meaningful sense, revenue-generating resources — their work directly improves the quality scores that determine the ACO's payout.
Stealth Agents has placed virtual assistants in ACO and population health operations, with specific training in HEDIS measure outreach, care coordination workflows, and HIPAA-compliant patient communication. Their VAs integrate with population health platforms including Arcadia, Lightbeam, and Wellcentive.
The cost math is compelling: an ACO with 30,000 attributed lives deploying two VAs dedicated to care gap outreach and quality data collection may improve quality scores by 2–4 percentage points — a difference that, depending on the shared savings benchmark, can represent hundreds of thousands of dollars in additional payout.
Compliance and HIPAA Requirements
ACO operations involve protected health information at every level — patient outreach, provider data sharing, quality reporting. VAs engaged in ACO operations must work within HIPAA-compliant frameworks, with signed BAAs, encrypted communication channels, and defined data access controls. ACO administrative leaders should verify these protocols with any VA provider before engagement.
The ACO Growth Landscape
CMS has committed to expanding ACO participation, with a goal of having all Medicare beneficiaries in accountable care relationships by 2030. As ACO programs expand — and as commercial payer ACO contracts proliferate — organizations that can run efficient, high-performing administrative operations will have a structural advantage in both payer contracting and shared savings capture.
Sources
- CMS.gov, 2023 Medicare Shared Savings Program Performance Results, 2023
- Health Affairs, Administrative Costs in Accountable Care Organizations, 2022
- NCQA, HEDIS 2023 Technical Specifications, 2023