CHIA collects detailed financial and patient-level data from Massachusetts payers and providers. Data submissions are normalized to ensure completeness and validity, enabling accurate cross-payer and cross-provider research and analyses. CHIA's rich data resources are available to state agencies, providers, payers, and health care researchers seeking data for health research in the public interest.
The Massachusetts All Payer Claims Database (MA APCD) is the most comprehensive source of health claims data from public and private payers in Massachusetts. It is used by health care providers, health plans, and researchers to explore a wide variety of issues, including price variation, population health and quality measurement. Learn more....
CHIA collects data from Massachusetts acute care hospitals for each hospital inpatient stay, observation stay and emergency department visit. These data, which have been collected by CHIA and its predecessor agencies for over two decades, are useful for looking at long term trends in hospital utilization, readmissions, hospital market analyses and comparative charge analyses. Learn more....
CHIA's hospital financial performance information includes annual and quarterly reports with aggregate data and individual hospital fact sheets for Massachusetts hospitals. Learn more....
The Hospital Cost Report Data Access Tool allows users to query CHIA's hospital cost report data base and provides the opportunity to create customized requests containing cost, revenue, payer mix, and utilization data from Massachusetts acute and non-acute hospitals. Learn more....
CHIA also has data regarding other health care providers including long term care providers, payment and expenditure data from health care payers, and health insurance and coverage data. Please see the CHIA data index for more information on all the data sets available from CHIA.
