CHIA Insights & Analysis
Health Care Costs & Payments
Explore CHIA's data and reports on spending trends, provider prices, prescription drugs, and insurance premiums and cost-sharing.
Health Care Settings & Providers
Analysis and reports on health care clinicians and the places care services are delivered, including hospital profiles, nursing facilities, primary care, behavioral health services, and Case Mix reporting.
Health Equity
Where you live or who you are can still shape your care. Explore CHIA data and reports that highlight gaps in access, use, and cost.
Health Insurance Access & Coverage
CHIA examines rates of insurance enrollment and coverage, monitoring trends in health plan premiums and how members use services to provide a comprehensive picture of health care access in Massachusetts.
Quality of Care
Reports on health care quality in Massachusetts, including clinical outcomes, patient experiences, and readmissions.
Provider Financial Data
CHIA monitors the financial health of Massachusetts hospitals, health systems, and other providers through a variety of data collection efforts and analysis.
Data Sources & Assets
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.
MA APCD
Learn about the Massachusetts All Payer Claims Database, including what data is collected, how to request access, and how to submit claims data to CHIA.
Case Mix
Access Massachusetts hospital case mix data, including inpatient discharge, emergency department, and outpatient observation datasets, documentation, and data specification manuals.
Request or Submit Data
Learn more about requesting health care data or public records from CHIA, or find guidelines and technical resources on submitting required data.
About Us
CHIA is an independent state agency whose mission is to serve as a steward of health information to promote transparency and equity in the health care system.