The Health Care Cost Institute (HCCI) recently launched its new health care claims dataset for research. The new dataset is more than 25% larger than the original HCCI dataset, containing more than 1 billion claims per year for more than 55 million people who receive health care coverage from their employers. Researchers will initially have access to data from 2012 to 2018, with 2019 and 2020 information being added as soon as possible. The data is sourced from Aetna/CVS, Humana, Kaiser Permanente and more than 30 non-profit health plans included in the Blue Health Intelligence® national dataset , enabling researchers to conduct analysis at the national, state, and sub-state level. HCCI’s patient-, provider-, and payer-deidentified dataset contains comprehensive diagnostic, procedure, site of care and cost information, including payments made by insurers as well as what patients pay out of pocket.