This document provides an overview of Paul Grundy, the president of the Patient Centered Primary Care Collaborative, and his work promoting the patient centered medical home model. It summarizes his extensive experience and leadership in primary care transformation. It also briefly outlines some of the key principles of the patient centered medical home approach, including comprehensive and coordinated care, enhanced access, quality improvement, and a focus on populations rather than just individual visits. The evidence presented suggests that the medical home model can reduce costs while improving outcomes through lower utilization of emergency rooms, hospitals, and specialty care.