7-Day Clinic in Fargo, ND located at 1517 32nd Ave. S, . The hours of operation for this clinic are not known, however most walk-in clinics are open daily and for extended hours. 7-Day Clinic appears to be individually owned and operated and not part of a larger network of clinics. There are, however, 2 walk-in clinics within 20 miles of Fargo in cities including Moorhead and Casselton.