Pay for performance programs show no signs of abating in popularity, yet their impact remains equivocal. Whether quality would be better if physicians within groups also paid themselves based on quality performance is unknown. If the incentives of P4P are to have impact, how are those monies distributed to the individual physicians once the group gets paid? There is virtually nothing in the literature on point. In “Physician Compensation for Quality: Behind The Group’s Green Door,” Alice looks at the data on P4P programs, the basics of traditional compensation within groups and then presents the findings from a unique survey which was sent out on her behalf by the AMGA producing responses from 14 groups around the country who are variably paying for quality as part of physician compensation. Some report significant improvement in quality performance too. Alice then looks at the payment reform models on the horizon and concludes that traditional notions of productivity, on which most current group compensation models turn, will not reward what the new systems, and most particularly the PROMETHEUS Payment® model (www.prometheuspayment.org) is designed to generate. She examines whether the Stark rules on compensation will be a barrier to changed, creative approaches, concludes that it will not, and then looks at what employment contracts will have to accommodate to make physician compensation for quality within groups real and of value to both patients and physicians.