Some of the more common cases MFCB investigators work are fraudulent billing by doctors, dentists, and counselors for services not medically needed or services which were never performed; financial exploitation of the elderly; drug diversion cases including theft of controlled substances by registered nurses in nursing homes; medical transportation companies who bill for services not rendered or for more services than those which were actually performed, pharmaceutical supply companies or pharmacies which are receiving kickbacks to prescribe a certain medication; cases involving physical abuse and neglect at long-term care facilities and other institutions caring for our most vulnerable; and fraud of the Home Services Program which is a Medicaid Waiver Program. 

The MFCB also investigates violations of the Illinois False Claims Act and the Federal False Claims Act in conjunction with federal investigators.