ACO proliferation and provider “all-payer” care models inexorably lead to tighter network strategies
A new study in JAMA (by McWilliams et al.) looks at the Medicare expenditures of patients seeing providers enrolled in the BCBS of Massachusetts version of the ACO (Alternative Quality Contract or “AQC”). The AQC model covers only commercial lives and all of the relevant providers had FFS reimbursement from Medicare during the time of the study (several later became ACO Pioneers). The study tests whether providers rewarded to be more efficient for one pool of patients (BCBCMA commercial HMO lives) will take the same approach to care with other