WASHINGTON, Aug. 3 -- Prime Therapeutics LLC, Eagan, Minnesota, a pharmacy benefit manager, submitted a public comment letter to the U.S. Department of Health and Human Services Centers for Medicare and Medicaid Services, U.S. Department of Labor Employee Benefits Security Administration and the U.S. Department of the Treasury Internal Revenue Service responding to a request for information (RFI) regarding the prescription drug machine-readable file requirement in the Transparency in Coverage Fi  more