Ambulatory services under case management provisions try to monitor:

Ambulatory services under case management provisions primarily focus on the effectiveness and efficiency of outpatient care, which includes monitoring the cost-effectiveness of those services. These provisions aim to ensure that patients receive the appropriate level of care in the right setting while also managing healthcare costs.

By monitoring the financial aspects of outpatient services, case management ensures that resources are allocated effectively and that patients are accessing necessary services without unnecessary expenditures. This helps to promote the quality of care while also managing overall healthcare costs, making it a critical component of case management in health insurance and care delivery systems.

The other options, while relevant in different contexts, do not directly relate to the monitoring and management focus inherent in ambulatory services under case management. Length of stay pertains more to inpatient services, response time is specific to emergency services, and driving distance is a logistical consideration rather than a direct measure of service effectiveness.