Quest Diagnostics Simi Valley Sycamore is located on the second floor inside the Simi Hills Medical Center. The facility is very clean. Appointments are available and the location runs on time, with efficient and kind staff. Technicians are a pleasure, providing excellent, friendly customer service with a great bedside manner. The staff is cooperative, even accepting walk-in patients. Some feedback notes that the kiosk check-in process can be confusing, especially for seniors, who suggest a desk person in the waiting room would be helpful. This location offers routine lab tests, pediatric specialty services, and COVID-19 antibody testing by appointment, with specific hours and requirements listed.