Quest Diagnostics is located inside the Valley Medical Center, with an entrance between Van Nuys Boulevard and Kester Street along Sherman Way. The location offers routine lab tests, blood and urine testing, a glucose tolerance test, and Blueprint for Wellness. Quest now offers COVID-19 antibody testing by appointment, with face coverings required. Appointments are recommended to be seen within a reasonable time, and it is best to bring the order from a doctor. The staff are described as pleasant, knowledgeable, positive, organized, efficient, helpful, and caring, making the process painless with excellent communication. Some visitors note that a more visible street sign would make the location easier to find.