The Medical Services Initiative program—a safety net—based system of care— in Orange County included assignment of uninsured, low-income residents to a patient-centered medical home. The medical home provided case management, a team-based approach for treating disease, and increased access to primary and specialty care among other elements of a patient-centered medical home. Providers were paid an enhanced fee and pay-for-performance incentives to ensure delivery of comprehensive treatment. Medical Services Initiative enrollees who were assigned to a medical home for longer time periods were less likely to have any emergency room (ER) visits or multiple ER visits. Switching medical homes three or more times was associated with enrollees being more likely to have any ER visits or multiple ER visits. The findings provide evidence that successful implementation of the patient-centered medical home model in a county-based safety net system is possible and can reduce unnecessary ER use.

This study examined whether environmental factors and practice characteristics influence the existence of patient-centered medical home elements in family practices in Virginia. The study used multiple secondary data sets to measure the external environment and a survey of family practices to enumerate and describe medical home elements and practice environment. Results show a positive association between organizational slack, organizational relationships, and stakeholder expectations on the existence of medical home elements. A negative association was found between competition and medical home elements. Medicare and managed care penetration were not associated with medical home elements. The ability or willingness, or both, of family practices to innovate along the patient-centered medical home model is constrained by important institutional and resource dependencies, and policy makers should take these constraints into account if there is to be widespread adoption of a medical home approach to fee-for-service practices.

This study examined data from the 2005-2006 National Survey of Children with Special Health Care Needs to assess the relationship among children with asthma between a reported medical home and emergency department (ED) use. The authors used 21 questions to measure 6 medical home components: personal doctor/nurse, family-centered, compassionate, culturally effective and comprehensive care, and effective care coordination. Weighted zero-inflated Poisson regression analyses assessed the independent effects of having a medical home on annual number of child ED visits while controlling for child and parental characteristics, and the differential likelihood of securing a medical home. Nearly half (49.9%) of asthmatic children had a medical home. Receiving primary care in a medical home was associated with fewer ED visits (incidence rate ratio = 0.93; 95% confidence interval = 0.89-0.97). A medical home in which physicians and parents share responsibility for ensuring that children have access to needed services may improve child and family outcomes for children with asthma.