Aetna is the latest to sue, pointing to re-used metrics that were discarded in a court victory by Clover Health. CMS is appealing that decision.

The raids occurred on Tuesday as part of a coordinated investigation between the FBI, HHS and New York state authorities. Hundreds of adult daycare and social centers were said to be under watch, though the total scope of the alleged fraud is still not entirely clear.

The agency is looking into claims that the EHR vendor is blocking data access to its over 300 million patient records. If true, such actions would violate federal regulations. 

Herbert Kimble, 60, was also ordered to pay nearly $400 million in restitution and forfeitures. The fraud, which involved sending kickbacks to telemedicine firms and billing Medicare for medical equipment, is one of the largest in history. 

Physical therapist Jaekwan Lee, 42, will serve 15 months in prison for his role in the fraud scheme, which involved dozens of Amtrak employees, 19 of whom pleaded guilty for their role in the conspiracy.

It’s unclear if the man taken into custody, Edward Dubrovsky, 54, is being formally accused of being linked to the infamous cybercrime cell. Dubrovsky works with ransomware victims, helping them to pay off criminals to regain access to their data.

In March, a U.S. District Court judge agreed with hospital plaintiffs who claimed in a lawsuit that the A-to-F grading system was deceptive, with those that chose to engage in enhanced data sharing receiving higher rankings. Leapfrog has defended its methodology, arguing the grades are constitutionally protected opinions.