 On-site x-ray, MRI, and casting services allow our highly trained medical staff to evaluate, diagnose, and treat your injury all under one roof without the high copay and weight associated with an emergency room visit. Simply walk into our Concord or Derry locations without a phone call or appointment. The Concord Acute Injury Clinic is open Monday through Friday from 9 a.m. to 6 p.m. and Saturday from 8 a.m. to 12 p.m. And the Derry location is Monday through Friday from 1 p.m. to 4.30 p.m.