This data set presents Metropolitan Statistical Areas (MSAs) that are participating in the Comprehensive Care for Joint Replacement Model, a proposed model to support better and more efficient care for beneficiaries undergoing the most common inpatient surgery for Medicare beneficiaries: hip and knee replacements.\"

2017 SSP ACO PUF - To address the increasing number of requests for SSP ACO data, the Centers for Medicare (CM) has created a standard analytical file that CMS can use to efficiently satisfy these requests. It is the intent of CM to publish the ACO-level public-use file (PUF) that contains ACO-specific metrics as well as summarized beneficiary and provider information for each performance year of the SSP program.