Medicare Current Beneficiary Survey
The Medicare Current Beneficiary Survey (MCBS) produces nationally representative estimates of health status, health care use and expenditures, health insurance coverage, and socioeconomic and demographic characteristics of Medicare beneficiaries. It is used to estimate expenditures and sources of payment for all services used by Medicare beneficiaries, including copayments, deductibles, and noncovered services; to ascertain all types of health insurance coverage and related coverages to sources of payment; and to trace processes over time, such as changes in health status and the effects of program changes. MCBS has two components: the Cost and Use file and the Access to Care file. Medicare claims are linked to the survey-reported events to produce the Cost and Use file, which provides complete expenditure and source of payment data on all health services, including those not covered by Medicare. The Access to Care file contains information on beneficiaries' access to health care, satisfaction with care, and usual source of care.
National Center for Health Statistics. Health United States 2009: With Special Feature on Medical Technology. Hyattsville, Maryland. 2010; pp 456-457.