The Justice Department says it has charged a Texas doctor in an $89 million healthcare fraud scheme, accusing him of billing insurers for medically unnecessary cardiovascular screening tests for college student-athletes and then rubber-stamping the results as normal without reviewing them

Texas doctor is accused of billing insurers for medically unnecessary cardiovascular screenings

The Justice Department has announced criminal charges against 455 people as part of a two-week healthcare fraud crackdown that officials say involved more than $6.5 billion in…