Research Topics
| J Michael McWilliamsSummaryAffiliation: Harvard University Country: USA Publications
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Publications
New risk-adjustment system was associated with reduced favorable selection in medicare advantageJ Michael McWilliams
Department of Health Care Policy at Harvard Medical School, Boston, Massachusetts, USA
Health Aff (Millwood) 31:2630-40. 2012..Similar risk-adjustment methods may help reduce incentives for plans competing in health insurance exchanges and accountable care organizations to select patients with favorable clinical risks...- Complex Medicare advantage choices may overwhelm seniors--especially those with impaired decision makingJ Michael McWilliams
Department of Health Care Policy, Harvard Medical School, Division of General Internal Medicine and Primary Care, Brigham and Women s Hospital, Boston, Massachusetts, USA
Health Aff (Millwood) 30:1786-94. 2011..It could also lower their out-of-pocket costs... 
Implementation of Medicare Part D and nondrug medical spending for elderly adults with limited prior drug coverageJ Michael McWilliams
Department of Health Care Policy, Harvard Medical School, 180 Longwood Ave, Boston, MA 02115, USA
JAMA 306:402-9. 2011..Implementation of Medicare Part D was followed by increased use of prescription medications, reduced out-of-pocket costs, and improved medication adherence. Its effects on nondrug medical spending remain unclear...- Medicare spending for previously uninsured adultsJ Michael McWilliams
Department of Health Care Policy, Harvard Medical School, 180 Longwood Avenue, Boston, MA 02115, USA
Ann Intern Med 151:757-66. 2009..Medicare spending after age 65 years may be higher for previously uninsured adults if suboptimal care before this age leads to irreversible complications, persistently elevated clinical risks, or delay of costly elective procedures... - Health consequences of uninsurance among adults in the United States: recent evidence and implicationsJ Michael McWilliams
Department of Health Care Policy, Harvard Medical School, 180 Longwood Ave, Boston, MA 02115, USA
Milbank Q 87:443-94. 2009..Although recent research using more rigorous methods may offer a better understanding of this important subject, it has not been comprehensively reviewed... 
Differences in control of cardiovascular disease and diabetes by race, ethnicity, and education: U.S. trends from 1999 to 2006 and effects of medicare coverageJ Michael McWilliams
Harvard Medical School, Department of Health Care Policy, 180 Longwood Avenue, Boston, MA 02115, USA
Ann Intern Med 150:505-15. 2009..Efforts to improve the care of cardiovascular disease and diabetes or expand insurance coverage for adults with these conditions may reduce differences in clinical outcomes...- Use of health services by previously uninsured Medicare beneficiariesJ Michael McWilliams
Division of General Medicine and Primary Care, Department of Medicine, Brigham and Women s Hospital and Harvard Medical School, Boston, MA 02115, USA
N Engl J Med 357:143-53. 2007..Previously uninsured adults who enroll in the Medicare program at the age of 65 years may have greater morbidity, requiring more intensive and costlier care over subsequent years, than they would if they had been previously insured... - Health of previously uninsured adults after acquiring Medicare coverageJ Michael McWilliams
Division of General Medicine and Primary Care, Department of Medicine, Brigham and Women s Hospital and Harvard Medical School, Boston, Massachusetts 02115, USA
JAMA 298:2886-94. 2007..However, the health benefits of providing insurance coverage for uninsured adults have not been clearly demonstrated... - Health benefits of reduced patient cost sharing in JapanAkihiro Nishi
Department of Society, Human Development and Health, Harvard School of Public Health, 677 Huntington Avenue, Boston, Massachusetts, MA 02115, USA
Bull World Health Organ 90:426-435A. 2012..To assess the effect on out-of-pocket medical spending and physical and mental health of Japan's reduction in health-care cost sharing from 30% to 10% when people turn 70 years of age... - Health insurance coverage and mortality among the near-elderlyJ Michael McWilliams
Division of General Medicine and Primary Care, Department of Medicine, Brigham and Women s Hospital, Boston, Massachusetts, USA
Health Aff (Millwood) 23:223-33. 2004..Expanding coverage to the near-elderly uninsured may greatly improve health outcomes for these groups... - Is hospital service associated with racial and ethnic disparities in experiences with hospital care?LeRoi S Hicks
Department of Medicine, Division of General Internal Medicine, Brigham and Women s Faulkner Hospitalist Program, Brigham and Women s Hospital Department of Health Care Policy, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
Am J Med 118:529-35. 2005..Little is known about the influence of processes of hospital care on racial and ethnic differences in experiences with hospital care... - Impact of Medicare coverage on basic clinical services for previously uninsured adultsJ Michael McWilliams
Division of General Medicine and Primary Care, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Mass 02115, USA
JAMA 290:757-64. 2003..An affordable option through which near-elderly uninsured adults could purchase Medicare coverage might have similar effects... - Children's health insurance and access to care during and after the CHIP expansion periodMiji Choi
Harvard School of Public Health, Boston, MA, USA
J Health Care Poor Underserved 22:576-89. 2011.... - Steps to reduce favorable risk selection in medicare advantage largely succeeded, boding well for health insurance exchangesJoseph P Newhouse
Division of Health Policy Research and Education, Harvard University, in Boston, Massachusetts, USA
Health Aff (Millwood) 31:2618-28. 2012..Because insurance exchanges set up under the Affordable Care Act will employ similar policies to combat risk selection, our results give reason for optimism about managing competition among health plans... - Gender differences in aspirin use among adults with coronary heart disease in the United StatesAlexander R Opotowsky
Department of Medicine, Brigham and Women s Hospital, Boston, MA 02115, USA
J Gen Intern Med 22:55-61. 2007..The presence of gender differences in aspirin use for secondary prevention is less clear...