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909.985.2811
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Sierra San Antonio Medical Plaza
San Antonio Regional Hospital is growing to meet the urgent care needs in Fontana, and our promise remains the same — to carry on our tradition of modern medicine with compassion.
16465 Sierra Lakes Pkwy, Fontana, CA 92336 • Medical Plaza Main Phone: 909.434.1100
Click here to download the Outpatient Services map and information.
Services Offered:
Urgent Care
Monday - Friday
9 am - 8:00 pm
Weekends & Holidays
9 am - 5 pm
Walk-ins Welcome
Click here to make your
Urgent Care InQuicker appointment today!
Radiology (Walk-in X-ray only)
Monday - Friday
9 am - 5:00 pm
Closed Saturday, Sunday & Holidays
Laboratory Services
Monday - Friday
7:30 am - 12:30 pm
Closed Saturday, Sunday & Holidays
Rehabilitation Services (By Appointment Only)
Call 909.948.8080 for more information.
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