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    FederalNational Inpatient Sample (NIS) - Restricted Access FilesU.S. Department of Health & Human Services — The Healthcare Cost and Utilization Project (HCUP) National Inpatient Sample (NIS) is the largest publicly available all-payer inpatient care database in the United...
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    FederalHCUP Nationwide Ambulatory Surgery Sample (NASS) Database – Restricted AccessU.S. Department of Health & Human Services — The largest all-payer ambulatory surgery database in the United States, the Healthcare Cost and Utilization Project (HCUP) Nationwide Ambulatory Surgery Sample (NASS)...
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    FederalHCUP Nationwide Emergency Department Database (NEDS) Restricted Access FileU.S. Department of Health & Human Services — The Healthcare Cost and Utilization Project (HCUP) Nationwide Emergency Department Sample (NEDS) is the largest all-payer emergency department (ED) database in the...
