Walk in Medical Care, Urgent Care for illness and injury. With a doctor always on duty, Doctors Express provides treatment for coughs and colds, breaks and sprains. We have in-house laboratory and X-Ray services to aid with diagnosis and treatment. We also provide Occupational Health services including treatment of workers compensation injuries, drug testing (DOT and non-DOT), and employment physicals (including DOT physicals). As a certified Civil Surgeon for the Immigration and Naturalization Service, our Medical Director Provides Immigration Physical Services. In Delaware, we are considered a Medical Aid Unit.