Association of the Range of Outpatient Services Provided by Primary Care Physicians with Subsequent Health Care Costs and Utilization.

Background: Broader primary care practice range of services (ROS), defined as the diversity of professional services delivered, is associated with lower utilization. ROS provided by individual primary care physicians (PCPs) varies considerably with unclear implications for patients.

Objectives: Create a PCP-ROS measure covering six categories of outpatient services, including expanded codes for mental health counseling services and point of care ultrasound (POCUS) technology in physician offices.