NEJM Interview: Dr. Joseph Newhouse on the importance of differences in Medicare spending within hospital referral regions.

Dr. Joseph Newhouse is a Professor of Health Policy and Management at Harvard Medical School and the Harvard School of Public Health and a Professor at Harvard's Kennedy School of Government. Stephen Morrissey, the interviewer, is the Managing Editor of the Journal. J.P. Newhouse and A.M. Garber. Geographic Variation in Medicare Services. N Engl J Med 2013;368:1465-8.