Population Health

CHA is supporting health in a whole new way.

Instead of just treating the sick, we are working broadly to help entire populations of patients be as healthy as possible.

To do this, we have built a system to 1) identify medical needs, 2) provide proactive care and 3) address hidden factors that affect health (ie. social determinants of health). For example: Do people have a safe place to live? Food to eat? Can they get to the doctor? Do they have insurance?

People who need more get a high-touch approach - coordinated care, appropriate education and direct linkages to local community programs. Our goal is to give every patient the right care at the right time. This lets CHA manage health care costs while helping people live their healthiest lives.


What is an Accountable Care Organization (ACO)?

An ACO is a partnership of primary care providers, specialists, hospitals and a health plan to give patients all the services they need. Together, these groups strive to meet certain goals:

  • Improve patient experience (satisfaction, access to health services)
  • Improve outcomes for all patients
  • Reduce healthcare costs

CHA is part of several ACOs. This means we work with doctors and hospitals in our network. Your CHA provider may recommend a particular doctor or service based on your health needs. By seeing them, we can help you get coordinated and high quality care. It is always your choice about what doctors you see or hospitals you visit.

The MassHealth ACO

In 2017, CHA was certified as an ACO by the Massachusetts Health Policy Commission (HPC). The HPC's first round of ACO Certification included 17 ACOs. This was a significant milestone for Massachusetts, making it the first state to implement state-wide, all-payer standards for care delivery. Read our Press Release

Tufts Health Together with CHA
Tufts Health Plan and CHA joined together to create Tufts Health Together with CHA, a new MassHealth plan. Learn more about this plan.

Medicare ACOs

CHA participates in the Medicare Shared Savings Plan (MSSP) as part of the Beth Israel Deaconess Care Organization (BIDCO). This ACO model serves Medicare beneficiaries with the goal to achieve better health outcomes while lowering growth in health care expenses.

This FAQ explains Accountable Care Organizations and how they affect Medicare beneficiaries.

To learn more about Medicare ACOs, please visit www.medicare.gov or call 1-800-MEDICARE (1-800-633-422 or TTY at 1-877-486-2048).

CHA Population Health Contacts

Name and Location
Cambridge Public Health Commission D/B/A Cambridge Health Alliance
1493 Cambridge Street
Cambridge, MA 02139

Primary Contact
Lisa M. Trumble
Senior Vice President of Accountable Care Performance
Email: lmtrumble@challiance.org
Phone: 781-397-6504

Composition of ACO
Cambridge Public Health Commission D/B/A Cambridge Health Alliance is the sole participant in the Cambridge Health Alliance Accountable Care Organization.

ACO Participants
CHA includes CHA Cambridge, CHA Somerville and CHA Everett Hospital, the Cambridge Health Alliance Physicians Organization and associated care centers.