In this paper we compare physician referral patterns, quality, patient satisfaction, and community benefits of physician-owned specialty versus peer competitor hospitals. Our results are based on evidence gathered from site visits to six markets, 2003 Medicare claims, patient focus groups, and Internal Revenue Service data. Although physicianowners are more likely than others to refer to their own facilities and treat a healthier population, there are rationales for these patterns aside from motives for profit. Specialty hospitals provide generally high-quality care to satisfied patients. Uncompensated care plus specialty hospitals' taxes represent a greater burden, in percentage terms, than community benefits provided by nonprofit providers. [Health Affairs 25, no. 1 (2006): 106-118] A s pa rt o f t h e m e d i c a r e p r e s c r i p t i o n d ru g, Improvement, and Modernization Act (MMA) of 2003, Congress established an eighteenmonth moratorium on the development and expansion of new physicianowned specialty hospitals. The central concern among policymakers is whether these hospitals enjoy an unfair competitive advantage relative to other community hospitals. During the moratorium, Congress required the Medicare Payment Advisory Commission (MedPAC) and the Centers for Medicare and Medicaid Services (CMS) to report on two different aspects of this issue. At issue is whether specialty hospitals' physician-owners are able to control the referral of patients, choosing between their own facilities and other hospitals in the community, in a way that results in favorable selection. Other related issues are whether specialty hospitals provide high-quality care, how their patients perceive care, and what types of community benefits they contribute in their markets. Although the con-1 0 6 J a n u a r y / F e b r u a r y 2 0 0 6