New England Journal of Medicine Vol. 356, Issue 18, Pages 1883-1884 May 3, 2007 HKS Authors See citation below for complete author information. Joseph Newhouse John D. MacArthur Research Professor of Health Policy and Management Citation Newhouse, Joseph P. "Medicare Spending on Physicians — No Easy Fix in Sight." New England Journal of Medicine 356.18 (May 3, 2007): 1883-1884.