Chester Wojcik, 49, a vendor for several Veterans Affairs medical facilities pleaded guilty to a scheme to profit by billing for, but failing to perform, critical medical gas inspections at VA facilities. From May 29, 2014, through March 5, 2015, Wojcik, as the owner of Alliance Medical Gas Corporation, engaged in a scheme to defraud the VA by creating false invoices and reports for medical gas inspections that never took place. Medical gas supply systems deliver piped gases, including compressed air, oxygen, nitrous oxide, nitrogen and carbon dioxide to operating rooms, recovery rooms and patient rooms. Medical gas supply systems must be inspected and maintained regularly to ensure the safety of patients and medical professionals. Wojcik failed to perform, and then lied about, scheduled inspections of medical gas systems at VA facilities in Sioux Falls, S.D., Tuskegee, Ala. and Montgomery, Ala. Wojcik was paid $8,981 by the VA for services that his company did not perform.