How much does a viral test for COVID-19 cost? There is a wide range in charges. An investigation by the Kaiser Family Foundation determined that the cost of a test can range anywhere from $20 to $850, with $127 being the median cost. Currently, the Medicare reimbursement rate for a COVID-19 test is either $51 or $100, depending on the type of. Our Business and Operations. Headquartered in Cincinnati, Ohio, The Kroger Co. is one of the largest retailers in the United States based on annual sales. The information below is current as of November 30, 2020. We operate 2,750 grocery retail stores under a variety of banner names. Our formats include supermarkets, seamless digital shopping.