The effect of prepaid group practice on physicians' utilization behavior.

Area of Science:

• Health Services Research
• Medical Economics
• Physician Behavior Analysis

Background:

• Physician practice patterns, particularly resource utilization, can vary significantly.
• Understanding factors influencing these variations is crucial for healthcare efficiency.
• Prepaid group practices offer a unique model with different physician incentives and regulatory structures.

Purpose of the Study:

• To investigate variations in physician resource utilization (office visits, telephone calls, X-rays, lab procedures) within a prepaid group practice.
• To identify factors, including medical training and practice setting, that explain these variations.
• To assess the impact of prepaid group practice on the efficiency of medical care delivery.

Main Methods:

• Study focused on 34 internists at Kaiser Permanente, Portland, Oregon, in 1970.
• Examined physician behavior concerning the use of clinical and technical resources.
• Utilized a framework positing medical training and organizational variables as key determinants of resource use.

Main Results:

• Medical training influences a physician's clinical approach, but the practice setting exerts its own significant influence.
• Prepaid group practice appears to promote more efficient healthcare delivery.
• Reduced utilization of costly resources was observed in the prepaid group practice setting.

Conclusions:

• The practice environment is a critical determinant of physician resource utilization, alongside medical training.
• Prepaid group practices incentivize efficient care by altering physician incentives and implementing professional regulation.
• This model demonstrates a potential for more cost-effective medical care provision.