The owner of a Boca Raton, FL-based chain of medical imaging centers has agreed to pay $7 million to settle a federal healthcare fraud lawsuit. Government lawyers accused board certified radiologist Fred Steinberg, MD, of overcharging Medicare for CT scans and billing the federal program for some tests that were not medically necessary. The settlement also resolves allegations that Steinberg illegally paid as many as two dozen doctors to send him patients for imaging tests that cost up to $2,500 apiece.