Optum Urgent Care - Howell is here to provide you with expert personalized care in a friendly and comfortable setting so you can get back to your life as quickly as possible. As a full-service urgent care center for adults and children, we specialize in caring for illnesses or injuries that aren't emergencies. These include sprains and fractures, scrapes, cuts and burns, bites and stings, cold and flu symptoms, abdominal pain and more. No appointment needed—Just walk-in.