Mercy Medical Group - Midtown Walk-In Clinic is a urgent care that offers many services, including flu, cold, and sore throat. Visit Mercy Medical Group - Midtown Walk-In Clinic located at 3000 Q. St, Sacramento, CA. This Sacramento urgent care is one of the best in California. As part of the Dignity Health network, Mercy Medical Group - Midtown Walk-In Clinic is dedicated to delivering high quality, compassionate care and access to Sacramento and nearby communities.