Full definition
ACOs (Accountable Care Organizations) are healthcare organisations that take collective accountability for cost and quality of care for a defined patient population. Providers come together — primary-care physicians, specialists, hospitals — and share in savings (or losses) against benchmark spending while meeting quality standards.
The US Medicare Shared Savings Program (MSSP) is the largest ACO programme — 480+ ACOs covering 11 million+ Medicare beneficiaries as of 2024. Track 1 (upside-only), Track 2 (upside + downside risk), Track 3 (full risk). Commercial and Medicaid ACOs also widespread; total US ACO covered lives exceed 30 million.
For clinic technology in an ACO: software must support population-health analytics, risk stratification, gap-in-care identification, quality-measure tracking, and cross-provider care coordination. MOVO-X enterprise tier supports ACO operational requirements.
Where aco (accountable care organization) is used
- US Medicare Shared Savings Program
- Commercial ACOs
- Medicaid ACOs
- Direct contracting entities
- Hospital-led integrated delivery networks
Types of aco (accountable care organization)
MSSP Track 1
Upside-only Medicare ACO. Lowest risk.
MSSP Track 2
Upside + downside risk Medicare ACO.
MSSP Track 3
Highest-risk Medicare ACO. Largest potential reward.
ACO REACH
Newer Medicare model (replaced GPDC) — capitation-style with health-equity focus.
Commercial ACO
Insurer-payer-provider ACO arrangements.
Medicaid ACO
State Medicaid ACO programmes — varies by state.
Quantified benefits
- ▸Aligns provider incentives with patient outcomes
- ▸Drives population-health investment
- ▸Reduces unnecessary utilisation
- ▸Foundation for value-based-care expansion
Frequently asked
Are ACOs working?+
Mixed evidence. Many MSSP ACOs achieve modest savings; some show no impact; high-performers achieve substantial savings. Implementation discipline matters as much as model.
What's ACO REACH?+
Realising Equity, Access, and Community Health — newer Medicare ACO model with capitation-style payment and explicit health-equity requirements. Replaced the prior Direct Contracting model.
Does MOVO-X support ACO operations?+
Yes on enterprise tier. Population-health analytics, risk stratification, gap-in-care identification, quality measurement, cross-provider care coordination.
What's the relationship between ACO and MIPS?+
Sufficient ACO participation in qualifying APM track substitutes for MIPS reporting and provides higher payment adjustments. Many ACOs are Advanced APMs under QPP.