HSR&D Citation Abstract
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Data Alert: Duplicate Provider SSN Correction
de Groot K, Tarlov E, Hynes DM. Data Alert: Duplicate Provider SSN Correction. [Website]. 2009 Mar 11.
Less than 1% of provider SSns were affected in each of the FY08 and FY09 SAS datasets. Across
all fiscal years, Austin processing assigned duplicated Provider SSNs to Providers without a SSN.
The applies only to data in the SAS datasets. To correct erroneous SSN values, duplicated provider
SSNs were replaced with missing values in the affected SAS datasets. Corrections will be made
only to affected FY08 and FY09 datasets.