are mediated by the health care system and hospital leaders. Examples of these interventions include enhancing the efficacy of clinical mental health services, providing consultations and training for community partners, and sharing aggregate health data to inform policy, practice, and planning for public mental health. Public health practice interventions are mediated by public health department officials. These interventions include advocating for policy changes, initiating public service announcements to reduce the stigma of mental illness, and conducting outreach to increase the accessibility of community mental health resources. Elected officials and administrative policy makers implement social, economic, and environmental policy interventions. These can include reducing financial and housing insecurity, changing the built environment to increase urban green space and decrease nighttime noise pollution, and reducing structural stigma directed at those with mental illness. Population health management (PHM) One method to improve population health is population health management (PHM), which has been defined as "the technical field of endeavor which utilizes a variety of individual, organizational and cultural interventions to help improve the morbidity patterns (i.e., the illness and injury burden) and the health care use behavior of defined populations". PHM is distinguished from disease management by including more chronic conditions and diseases, by use of "a single point of contact and coordination", and by "predictive modeling across multiple clinical conditions". PHM is considered broader than disease management in that it also includes "intensive care management for individuals at the highest level of risk" and "personal health management... for those at lower levels of predicted health risk". Many PHM-related articles are published in Population Health Management, the official journal of DMAA: The Care Continuum Alliance. The following road map has been suggested for helping healthcare organizations navigate the path toward implementing effective population health management: Establish precise patient registries Determine patient-provider attribution Define precise numerators in the patient registries Monitor and measure clinical and cost metrics Adhere to basic clinical practice guidelines Engage in risk-management outreach Acquire external data Communicate with patients Educate patients and engage with them Establish and adhere to complex clinical practice guidelines Coordinate effectively between care team and patient Track specific outcomes Healthcare reform and population health Healthcare reform is driving change to traditional hospital reimbursement models. Prior to the introduction of the Patient Protection and Affordable Care Act (PPACA), hospitals were reimbursed based on the volume of procedures through fee-for-service models. Under the PPACA, reimbursement models are shifting