The goal of the Population Health Laboratory (PHL) is to promote access to cancer care, including screening, treatment, and surveillance. We believe that how and where care is received influences treatment and outcomes. We also believe that early intervention affects patients’ health and health care experiences. As part of the New Hampshire Mammography Network, the PHL focuses on population-based approaches to optimizing breast cancer screening practices. The PHL is also active with the New Hampshire Colonoscopy Registry research team. The PHL has a special interest in how cancer care resources are allocated across populations, and how variations thereof impact cancer patients. The PHL research program is largely built around their expertise in using registry and claims data to address these lines of inquiry.