Oliver Kharraz, MD, is the founder and chief operating officer of ZocDoc, a new, free service for Boston residents. Founded in 2007, ZocDoc is improving access to healthcare by enabling patients to search for doctors by location, insurance accepted, gender, or language; to read verified reviews; and to instantly book appointments online or via the free ZocDoc App for iPhone, Android, and BlackBerry. There are over seven million medical appointments available on ZocDoc. More than 1.3 million people use ZocDoc to find a doctor or dentist each month.