Published: March 17, 2026
Updated: September 21, 2026
Accountable Care Organization (ACO)

What Is an Accountable Care Organization (ACO)?

An Accountable Care Organization (ACO) is a network of healthcare providers, including physicians, hospitals, specialists, and other healthcare professionals, that work together to coordinate patient care. The goal of an ACO is to improve healthcare quality, reduce unnecessary medical expenses, and ensure patients receive the right care at the right time.

Unlike traditional healthcare models that often operate independently, ACOs encourage collaboration among providers so that medical decisions, treatments, and follow-up care are coordinated. This approach helps improve patient outcomes while reducing duplicate tests, avoidable hospitalizations, and healthcare costs.

Why an Accountable Care Organization (ACO) Matters

Coordinated healthcare is especially important for individuals with chronic illnesses, multiple medical conditions, or complex healthcare needs. By improving communication between providers, ACOs help ensure patients receive comprehensive, high-quality care while minimizing unnecessary services and medical errors.

For many Medicare beneficiaries and individuals managing long-term health conditions, participation in an ACO can lead to better preventive care, improved disease management, and fewer hospital readmissions.

How an Accountable Care Organization (ACO) Works

Healthcare providers within an ACO share responsibility for a patient’s overall health by coordinating services across different settings.

  • Primary care physicians coordinate overall treatment.
  • Specialists communicate with other providers.
  • Hospitals share patient information when appropriate.
  • Preventive services are emphasized.
  • Chronic diseases are actively managed.
  • Patient outcomes are regularly measured.
  • Providers work together to reduce unnecessary healthcare costs.

Benefits of an Accountable Care Organization (ACO)

  • Better coordination among healthcare providers.
  • Improved patient outcomes.
  • Reduced duplicate testing.
  • Lower healthcare costs.
  • Greater focus on preventive care.
  • Improved management of chronic diseases.
  • Fewer avoidable hospital admissions.
  • Higher quality of care through performance measurement.

How Is an Accountable Care Organization Evaluated?

ACOs are evaluated using quality and performance measures established by organizations such as the Centers for Medicare & Medicaid Services (CMS). These measures assess patient outcomes, preventive care, chronic disease management, patient satisfaction, hospital readmissions, and overall healthcare quality.

How Home Care Can Help Within an Accountable Care Organization

Home care services can play an important role in helping patients meet the goals of an ACO. Professional caregivers assist with medication reminders, mobility support, meal preparation, personal care, transportation, and monitoring changes in health. Skilled nursing services help bridge the transition between hospital and home, reducing the risk of complications and hospital readmissions while supporting coordinated care plans developed by the patient’s healthcare team.

Home Care Tip for Coordinated Care

Keep an updated list of your medications, healthcare providers, allergies, and medical history. Sharing accurate information with every provider helps improve communication and ensures safer, more coordinated care.

Frequently Asked Questions About Accountable Care Organizations (ACOs)

Who can participate in an ACO?

Many ACOs serve Medicare beneficiaries, although some private insurance plans also participate in accountable care programs.

Does joining an ACO change my healthcare provider?

Not necessarily. Patients often continue seeing their existing healthcare providers if they participate in the ACO network.

Do ACOs improve healthcare quality?

Research has shown that coordinated care models can improve preventive care, chronic disease management, and patient outcomes while reducing unnecessary healthcare spending.

When to Speak with Your Healthcare Provider

If you have multiple chronic conditions or receive care from several specialists, ask your healthcare provider whether participating in an Accountable Care Organization could help improve care coordination and overall health management.

Get a free consultation!

By submitting this form, you agree to our Privacy Policy and Terms & Conditions.