The Merative™ Marketscan® Research Databases contain individual-level, de-identified healthcare claims information from employers, healthplans, and Medicaid programs. CoDES has active licenses for the Merative™ Marketscan® Commercial Database, Merative™ Marketscan® Medicare Supplemental Database, and Merative™ Marketscan® Health Risk Assessment Database.
The Merative™ Marketscan® Commercial Database includes 2005-2023 health insurance claims for inpatient, outpatient, and outpatient pharmacy encounters, as well as enrollment data from large employers and health plans across the United States who provide healthcare coverage for their employees, their spouses, and dependents. The current dataset includes >200 million lives.
The Merative™ Marketscan® Medicare Supplemental Database includes 2005-2023 enrollment records along with inpatient, outpatient, ancillary, and drug claims for >12.9 million retirees in the United States with Medicare supplemental coverage through privately-insured fee-for-service, point-of-service, or capitated health plans.
The Merative™ Marketscan® Health Risk Assessment (HRA) Database includes self-reported biometric and health-related behavioral data obtained through surveys of employees of large US corporations and health plans. HRA is linked to medical, pharmacy, and enrollment data for these employees in the Merative™ Marketscan® Commercial Database and used to examine the relationships between health behaviors/risk and health outcomes or medical expenditures. Linked data is available for about 5% of beneficiaries.
The number of unique enrollees per year and aggregate across years is displayed in Tables 1 and 2.
Table 1: The number of unique enrollees per year (Merative™ Marketscan® Commercial Database)
| Year | Count |
|---|---|
| 2005 | 25,035,852 |
| 2006 | 31,857,040 |
| 2007 | 35,042,269 |
| 2008 | 49,252,860 |
| 2009 | 53,095,444 |
| 2010 | 51,672,523 |
| 2011 | 55,559,154 |
| 2012 | 55,975,628 |
| 2013 | 44,180,771 |
| 2014 | 47,258,528 |
| 2015 | 28,348,363 |
| 2016 | 27,895,445 |
| 2017 | 26,146,275 |
| 2018 | 27,087,740 |
| 2019 | 25,388,778 |
| 2020 | 23,306,734 |
| 2021 | 22,828,135 |
| 2022 | 21,936,321 |
| 2023 | 23,410,998 |
| Total | 209,227,050 |
Table 2: The number of unique enrollees per year (Merative™ Marketscan® Medicare Supplemental Database)
| Year | Count |
|---|---|
| 2005 | 2,927,834 |
| 2006 | 2,297,815 |
| 2007 | 2,432,172 |
| 2008 | 3,929,855 |
| 2009 | 4,121,110 |
| 2010 | 4,337,207 |
| 2011 | 5,243,029 |
| 2012 | 4,874,717 |
| 2013 | 4,272,760 |
| 2014 | 3,868,830 |
| 2015 | 2,199,633 |
| 2016 | 2,098,522 |
| 2017 | 1,473,787 |
| 2018 | 1,130,613 |
| 2019 | 1,632,440 |
| 2020 | 1,703,033 |
| 2021 | 1,623,587 |
| 2022 | 1,579,892 |
| Total | 14,063,858 |