WASHINGTON, July 17 -- Sen. Eric Schmitt issued the following press release:

Today, U.S. Senator Eric Schmitt (R-MO), joined by Senators Roger Marshall (R-KS), Ashley Moody (R-FL), Pete Ricketts (R-NE), and Tommy Tuberville (R-AL), sent oversight and document preservation letters to Sandata Technologies/HHAeXchange and Gainwell Technologies regarding potential vulnerabilities in Electronic Visit Verification (EVV) systems used to verify Medicaid services. The letters seek information related to whistleblower allegations that EVV records may be susceptible to post-service modifications and request extensive documentation to determine whether existing safeguards adequately protect taxpayer dollars before Medicaid claims are paid.

The senato...