Operating on commission: analyzing how physician financial incentives affect surgery rates

Area of Science:

• Health Economics
• Healthcare Policy
• Medical Practice Management

Background:

• Understanding the financial incentives influencing healthcare provider behavior is crucial for healthcare system efficiency.
• The methods for compensating specialists and primary care physicians can significantly affect healthcare utilization patterns, including surgical procedures.

Purpose of the Study:

• To investigate the causal effect of specialist and primary care physician (PCP) compensation models on surgery rates.
• To determine how different payment schemes (fee-for-service vs. capitation) influence the frequency of surgical interventions.

Main Methods:

• Utilized a nationally representative, household-based dataset for comprehensive analysis.
• Employed statistical methods to control for adverse selection and isolate the impact of compensation models.

Main Results:

• A 78% increase in surgery rates was observed when specialists were compensated via a fee-for-service model compared to a capitation basis, after controlling for adverse selection.
• The effect of PCP compensation on surgery rates was found to be contingent upon the presence or absence of referral restrictions.

Conclusions:

• Specialist compensation structures, particularly the shift from capitation to fee-for-service, have a substantial positive impact on surgery rates.
• Healthcare policy interventions aimed at controlling surgery rates must consider the interplay between physician payment models and referral systems.