Hemel Hempstead HospitalHemel Hempstead HospitalHillfield RoadHemel HempsteadHerts, HP2 4AD Tel: 01442 213141 Urgent Treatment Centre - Open 8am to 10pm every day The Urgent Treatment Centre at Hemel Hempstead Hospital provides urgent care services for the local community. In https://www.westhertshospitals.nhs.uk/about/hemelhempsteadhospital.asp