A physician-owned, women's health specialty outpatient clinic lacked the resources and expertise to offer lifestyle interventions treatments for people diagnosed with gestational diabetes mellitus. The global aim of this quality improvement project was to improve the capacity and expertise of the health care team to deliver best practices to women diagnosed with GDM. The process began with an abnormal glucose test qualifying for the diagnosis of GDM and ended at the six weeks postpartum visit. The quality improvement initiative was conducted in a microsystem that consisted of fourteen providers and twenty nursing or support staff. Providers consisted of physicians, nurse practitioners and certified nurse-midwives and support staff participants were certified nurse assistants, registered nurses or licensed practical nurses.