Imaging at 3115 E. Guasti Rd., Ontario, CA

This facility offers MRI, X-Ray, CT, and Ultrasound. Specific scanner specs are listed under Equipment Profile above.

Monday: 8 AM – 5 PM Tuesday: 8 AM – 5 PM Wednesday: 8 AM – 5 PM Thursday: 8 AM – 5 PM Friday: 8 AM – 5 PM Saturday: Call for hours Sunday: Call for hours

Saturday: Call for hours; Sunday: Call for hours. Please call 800-558-2223 to confirm weekend availability before visiting.

No. This location does not accept walk-ins for X-Ray — an appointment is required. Call 800-558-2223 to book; many slots are available the same or next day.

This facility accepts Cash and Personal Injury. We verify all insurance prior to your visit — call 800-558-2223 with your plan details for a benefit check.

• MRI 1 (MRI) — 1.5T, Closed. Supports weight limit 350 lbs, contrast (IV), breast coil. • CT 1 (CT) — 6 slice, GE. Supports weight limit 350 lbs, contrast (IV), breast coil.

Contrast: Yes (IV) — enhances visibility of blood vessels, tumors, and soft tissue. Tell us about any prior reactions to contrast dye when you schedule. Breast Coil: Yes — this location is equipped with a dedicated breast coil for high-resolution breast MRI studies. Sedation: Not offered at this location. For claustrophobia, ask our scheduling team about wide-bore or open MRI options nearby. Flex & Extension: Not available at this location's MRI scanner(s).

This location is at 3115 E. Guasti Rd., Ontario, CA 91761. To schedule or ask a question, call 800-558-2223 or use the Schedule Appointment button above.

Prep depends on the exam. For most MRI and X-Ray studies you can eat and drink normally. Abdominal MRI, abdominal/pelvic CT, and pelvic ultrasound often require fasting or specific drinking instructions — you'll receive prep details when you schedule. Wear loose, comfortable clothing without metal (no zippers, snaps, or underwire).

Bring a valid photo ID, your insurance card, your prescription or order (if it wasn't sent directly to us), a list of medications, and any prior imaging or reports on disc that are relevant to the exam.

A board-certified radiologist reads your study and sends the report to your referring provider, usually within 24–48 hours. You can also request a copy of your report and images through our patient portal.

Schedule online 24/7 through our patient portal, or call 800-558-2223. To reschedule or cancel, please give us at least 24 hours' notice so we can offer the slot to another patient.