Enrollment Trends monitors health insurance coverage in the Commonwealth of Massachusetts, where coverage is defined by unique Massachusetts residents with primary medical membership in the 13 largest commercial payers, MassHealth (Medicaid), and Medicare.
The March 2017 edition of Enrollment Trends offers insights into changes in health insurance coverage in Massachusetts from September 2014 through September 2016.
The accompanying databook has additional dates and population breakouts not included in the main report. The report is also accompanied by a technical appendix and MA APCD programming code.
Enrollment Trends is produced using the Massachusetts All-Payer Claims Database, supplemented with additional data from commercial payers, the Massachusetts Health Connector, and the Centers for Medicare and Medicaid Services.