The Comprehensive Primary Care Plus Model and Health Care Spending, Service Use, and Quality.

Area of Science:

• Health Services Research
• Primary Care Transformation
• Healthcare Economics

Background:

• Comprehensive Primary Care Plus (CPC+) was the largest US primary care delivery model tested, aiming to improve health outcomes.
• Understanding CPC+'s impact on healthcare spending, utilization, and quality is crucial for future healthcare transformation models.

Purpose of the Study:

• To evaluate the association of the Comprehensive Primary Care Plus (CPC+) initiative with healthcare spending and utilization.
• To assess the impact of CPC+ on the quality of care provided to Medicare beneficiaries.

Main Methods:

• Difference-in-differences regression models analyzed changes in outcomes for Medicare fee-for-service beneficiaries before and during the 5-year CPC+ intervention.
• Included 1373 track 1 and 1515 track 2 primary care practices, with matched comparison groups for robust analysis.
• Interventions involved a two-track design with enhanced payments, care delivery requirements, data feedback, and health IT support.

Main Results:

• CPC+ showed no significant change in total Medicare expenditures per beneficiary per month (PBPM).
• Expenditures increased due to enhanced payments, but CPC+ was associated with decreased emergency department visits and acute hospitalizations.
• Quality of care measures showed no meaningful changes; positive associations were observed for practices also in the Medicare Shared Savings Program.

Conclusions:

• While CPC+ did not reduce overall spending, it demonstrated reductions in specific utilization metrics like hospitalizations.
• The positive interaction with the Medicare Shared Savings Program suggests aligned incentives across specialties enhance transformation model success.
• Further adaptations and testing of primary care transformation models are needed, considering the broader healthcare context.