Walk-In Clinic Lamar Address 29 NW 1st Lane Lamar, MO 64759 location Get Directions Phone: 417-681-5266 Hours Monday – Friday, 7 a.m.–7 p.m.No appointments needed. Holiday hours may vary. About Our walk-in clinics offer convenient, affordable care for minor illnesses and injuries that aren't life threatening. Seeing patients of all ages.Save My SpotSpend less time waiting in line when you're feeling under the weather. With Save My Spot, you can fill out a simple form and wait from the comfort of your home. Save your spot now.