Naugatuck Valley Radiological Associates (NVRA) is an institute of diagnostic imaging staffed with 12 highly trained and board-certified radiologists who strive to provide the best patient care. At NVRA, we use prime diagnostic imaging at our three locations conveniently located in Southbury, Waterbury, and Prospect, Connecticut.Locations‧Contact Us‧Waterbury Road, Prospect‧West Main Street‧Provider Image Access‧Our Doctors.