Webview walk in clinic locations near ontario, ca. Find services at 40% less the average cost of urgent care, medical clinic hours, directions, and more. Doctors and nurses at these clinics can assess and treat minor illnesses and injuries. Simply enter your zip code and you will find the nearest cvs minuteclinic®. Faster and less expensive than a visit to urgent care ,. Webthe minuteclinic® at your local cvs provides a variety of services at a far lower price than a trip to the hospital or urgent care, including: Symptom checks and treatment plans for.