Making a doctor’s appointment just got a whole lot easier. The free ZocDoc smartphone app will help you find a doctor as well as make an appointment online within minutes. You can read patient reviews, search for a physician by location, and see his or her schedule so you can pick a time that best works for you. ZocDoc was originally designed to help patients find a dentist, but the service has now been expanded to doctors from all specialties. The service is currently available to patients looking for appointments in Chicago, Dallas, New York City, San Francisco, and Washington, D.C. The app is available only for Apple’s iPhone, but a version for Android phones is in the works.