Nephrologist Performance in the Merit-Based Incentive Payment System.

Area of Science:

• Health Policy
• Nephrology
• Quality Improvement

Background:

• The Merit-Based Incentive Payment System (MIPS) is a key quality payment program for Medicare.
• Predictors of nephrologist performance within MIPS remain largely unknown.
• Understanding these predictors is crucial for optimizing the program and improving care.

Purpose of the Study:

• To identify characteristics associated with higher nephrologist performance in the MIPS program.
• To analyze the impact of participation type, practice size, setting, and geography on MIPS scores.

Main Methods:

• Cross-sectional analysis of nephrologists participating in MIPS during the 2018 performance year.
• Utilized multivariable-adjusted linear regression models to assess associations between nephrologist characteristics and MIPS Final scores.
• Examined the validity and relevance of MIPS Quality measures selected by nephrologists.

Main Results:

• Nephrologists in MIPS Alternative Payment Models (APMs) scored significantly higher than individual participants.
• Larger practice sizes (medium and large) were associated with higher MIPS scores compared to small practices.
• Nephrologists in non-Health Professional Shortage Areas (HPSAs) and non-hospital-based settings generally achieved higher scores.

Conclusions:

• MIPS APM participation, larger practice size, and non-HPSA/non-hospital-based settings are linked to improved MIPS performance.
• Findings can inform strategies for refining MIPS program design.
• Further research should consider patient characteristics for more comprehensive analyses.