MGM National Harbor Appoints Chris Gumiela as President and COO
United States – 11 November 2026 – www.zonadeazar.com MGM National Harbor, one of Maryland’s leading casino and entertainment destinations, has announced the appointment of Chris Gumiela as its new President and Chief Operating Officer (COO), succeeding Melonie Johnson, who has retired from the position. The appointment, announced on 9 November 2026, marks the executive’s return...