

As of 2006, it includes variables specific to enrollment in Part D, and as of 2017 Part C was added. This includes the base Medicare A/B/D segment which includes beneficiary enrollment information, such as the beneficiary unique identifier, state and county codes, zipcode, date of birth, date of death, sex, race, age, monthly entitlement indicators (A/B/C/D), reasons for entitlement, and monthly managed care indicators (yes/no). The CMS data under an HCP DUA can only be accessed by HCP faculty and programming staff in our level 4 data enclave at the Markley Data Center. This data covers over ten years of fee-for-service claims, starting in 2008. Medicare is the primary health insurance program for people age 65 or older, people under age 65 with disabilities, and people of all ages with End-Stage Renal Disease (ESRD) or Lou Gehrig’s disease (amyotrophic lateral sclerosis ALS). The Center has projects accessing CMS Medicare and Medicaid data on remote enclaves through VRDC/ResDAC, and NBER, as well as data purchased and stored on Health Care Policy servers.
NATIONAL HEALTH CARE SURVEYS REGISTRY MANUALS
Additional data set codebooks and manuals for data stored at HCP are available on the HCP Harvard Intranet CHDA site.

Below is an overview of the breadth of data assets available for the Center's projects. The Center is in the process of acquiring multiple years of the CMS data to be housed at the Markley Data Center enclave. Many projects utilize the Centers for Medicare & Medicaid Services (CMS) data stored at the Center as well as through the CMS Virtual Research Data Center (VRDC), a virtual research environment, and the National Bureau of Economic Research (NBER) center.

In addition we utilize resources housed in data centers at other institutions through contractual agreements to expand the breadth of our research. We currently house: administrative billing claims at the national, state, and private payer levels international, national, and regional survey data clinical data at the procedure level in clinical registries and linked billing and electronic health record data. The Center’s data warehouse in Health Care Policy maintains one of the most comprehensive data archives of population-based health care information for research purposes held within Harvard Medical School and Harvard University.
