At approx. 2249hrs (10:49pm) Dorchester Central dispatched Station 1 and Station 100 (DCEMS) units for the MVC with entrapment Rt 50 East at Rt 16 in front of Walmart. Chief 1 (Command) & Rescue 1-1 arrived on location with no entrapment on a Head - on style collision to assist EMS with Patient loading and transport. DCEMS transported 2 patients local (DGH) and 1 patient to Trauma (PRMC). The volunteers clean up oil and debris on the road surface and cleared the scene without incident.