What is the telephone number for quest diagnostic? The customer support phone number of Quest Diagnostics is 1800-877-7004 / 1800-445-4032 / 973-520-2901 (Click phone number to call).How do you schedule appointment with quest diagnostics? Quest Diagnostics offers three ways to schedule an appointment: through the mobile appointment app for smartphones, through the online scheduling form or through the automated phone system. Users can schedule lab appointments 24 hours a day, seven days a week, according to Quest Diagnostics.What is quest 800 number? The Customer Service Phone Number of Quest Diagnostics Billing is: +1-800-222-0446 / 973-520-2900. Quest Diagnostics Incorporated is a world's dominating clinical lab placed in New Jersey (United States).Does quest diagnostics accept care credit? Quest Diagnostics is unable to accept payment by credit card, debit card or any other instrument requiring the payment of service fees or other charges to a third party. A bill is sent at the beginning of each month detailing the previous month's services, unless Quest Diagnostics has agreed to an alternate billing cycle for your account.
Upon transition, you may receive billing notifications by text, email, or a new paper bill format. Please use the link in the text or email to pay your bill. If you have received a paper bill, enter the Lab Code below.