18350 Roscoe Blvd, Ste 603

Northridge, CA 91325

Phone: (747) 232-4639
Fax: (818) 882-8047
Last updated: July 2, 2026

Tucked inside the Northridge Hospital Medical Center Plaza at 18350 Roscoe Boulevard, Suite 603, this Quest Diagnostics site serves Northridge, California six days a week. Enter from Roscoe Boulevard between Reseda Boulevard and Etiwanda Avenue. Note: parking in the plaza carries a fee, up to $8.00 maximum. It's part of the 2,000+ Quest locations Superpower connects members to for blood draws.

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Monday: 7:00 AM – 4:30 PM
Tuesday: 7:00 AM – 4:30 PM
Wednesday: 7:00 AM – 4:30 PM
Thursday: 7:00 AM – 4:30 PM
Friday: 7:00 AM – 4:30 PM
Saturday: 8:00 AM – 12:00 PM
Sunday: Closed

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