Gastrointestinal and Liver Specialists of Tidewater, PLLC | Office Phone Hours for All Locations: 8:00AM - 4:30PM - Ph: 757-483-6100 Harbour View - SUFFOLK/ Hours of Operation: 8AM - 4:30PM • Lakeview - SUFFOLK/ Hours of Operation 8AM - 4:30PM • High Street - PORTSMOUTH/ Hours of Operation 8AM-4:30PM.