Oak Street Health's primary care services segment provides comprehensive primary care to adults on Medicare. This includes preventative care, chronic disease management, and urgent care services. The company utilizes a value-based care model, focusing on patient outcomes and preventative measures to reduce overall healthcare costs. Research and development efforts are focused on improving care delivery models, patient engagement strategies, and the integration of technology to enhance the patient experience. Technologies used include electronic health records, data analytics, and telemedicine platforms. Patient impact is measured through improved health outcomes, reduced hospitalizations, and increased patient satisfaction. Market positioning is strong due to the focus on a specific patient population and value-based care approach. Future opportunities include expansion into new markets and the development of new care models. Regulatory aspects include compliance with Medicare guidelines and other healthcare regulations. Partnerships with CVS Health and other organizations support the delivery of care.