Client Services: (866) 697-8378Courier/STAT: (866) 697-8378**Option 1 then option 6
To find the nearest Quest patient service centers by zip code: www.questdiagnostics.com
520 N. Prospect Ave. #305 Redondo Beach, CA 90277
Monday - Friday8:00 am- 12:30pm1:30 pm – 4pm
Drug Screen: M-F 10:00 am- 12:00pm
For information about our physicians, services, or classes, please refer to the contact telephone numbers below.