What entity certifies the services provided by an MCO?

The correct choice is the designation of Geographical Service Areas (GSAs). MCOs, or Managed Care Organizations, are responsible for coordinating care and managing costs for injured workers. The certification of services they provide is linked to specific geographical regions defined by GSAs.

GSAs play a crucial role in ensuring that MCOs meet the necessary regulatory requirements and standards within distinct areas, which facilitates the delivery of healthcare services consistent with local regulations and needs. By utilizing GSAs, the oversight of MCO services is localized, promoting tailored healthcare solutions that reflect the unique demographics and health challenges of each area.

The involvement of entities like insurance companies, the National Safety Council, or the Health Care Providers' Association in certifying MCO services is less about direct certification and more about providing guidelines or support for practices within the healthcare landscape. Therefore, the GSA’s role directly connects to the certification needed by MCOs for effective operation within their respective regions.