Chamber Master Exer Urgent Care Share: Clinics & Medical Centers Exer Urgent Care Visit Website 20201 W. Rinaldi St. Suite 110 Northridge, CA 91326 (818) 298-3967 About About Exer Urgent care is staffed by ER Doctors with years of experience in emergency medicine. We can treat 80% of the cases seen in the ER, with less waiting time and for a fraction of the cost.