Health Care Costs for Americans with IDD: A National Analysis of Access and Spending 2002-2011 Based on the MEPS/NHISA summary of a nationally representative analysis of US data on the health care expenditures of Americans with IDD will be presented. Costs were derived from 10 years of linked data using the Medical Expenditure Panel Survey (MEPS) and the National Health Interviewer Survey (NHIS). Data implications are discussed in terms of changes in the health care insurance markets, movement to managed care, and health service priorities for Americans with IDD