Vidant Medical Group Bill. Pay in person. Payments may be made by cash, check or money order at the Central Billing Office, 2000 Venture Tower Drive, Greenville, NC. Hours are Monday through Friday from 8:30 a.m. - 5 p.m. Pay by mail. Payments by check or money order can be mailed to Vidant Medical Group, P.O. Box 63019, Charlotte, NC 28263-3019..