The Maryland Medical Care Data Base (MCDB) is the Maryland's All Payer Claims Database (APCD). Although the APCD includes enrollment, provider, and claims data for Maryland residents enrolled in private insurance including Medicare Advantage, Medicare fee-for-service, and Medicaid Managed Care Organizations, the private claims and Medicaid claims are available for approved data release. The private claims exclude self-insured ERISA health plans beginning in 2015 because of the SCOTUS ruling in Gobeille v. Liberty Mutual Insurance Company. The MCDB supports estimates of cost and utilization, policy analyses, and evaluations of demonstration programs, and is a decision support tool for State partners, such as the Maryland Insurance Administration and the Health Services Cost Review Commission.

For any questions about the MCDB, please email, mhcc.datarelease@maryland.gov