On Feb. 21, Change Healthcare disclosed a cybersecurity incident affecting several of its systems and services. BILHPN has engaged payer partners to explore ways to support providers during this period of disruption. Find updates here.

Medicaid ACO Resources

Important Update: Change Healthcare Cybersecurity Incident

On Feb. 21, Change Healthcare, a health care technology company under the ownership of UnitedHealth Group through its subsidiary Optum, disclosed a cybersecurity incident affecting several of its systems and services.

Practices that participate in the WellSense BILH Performance Network MassHealth ACO should take note that while WellSense employs a separate clearinghouse for claims processing, they depend on Change Healthcare exclusively for paper billing. As a result, practices receiving paper checks from WellSense may experience delays in payments, while those receiving Electronic Funds Transfer (EFT) payments should see minimal impact.

The BILH Performance Network is actively collaborating with Change Healthcare and our payer partners to explore alternative means of support for providers within our network during this disruptive period.

For real-time updates on the cybersecurity incident, providers and practice administrators are encouraged to visit ChangeHealthcare.com and can direct specific questions or concerns to our email here. BILHPN will also provide updates through BILHPN.org as we learn more.

WellSense BILH MassHealth ACO

BILHPN providers are part of the WellSense BILH MassHealth ACO as of 4/1/2023.

BILHPN PCPs will be exclusive to the WellSense BILH ACO and cannot participate in another MassHealth ACO (except for Special Kids Special Care). In 2023, MassHealth started the process to reassign patients from existing plans (THPP) to the WellSense plan.

BILHPN specialists can participate in multiple MassHealth plans, such as the WellSense BILH ACO, Fallon Atrius MassHealth ACO and Tufts Health Public Plans.

For more information, please click here.

Contacts for questions about all MassHealth ACO products



  • Christine Ouellette