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Sierra San Antonio Medical Plaza


Sierra San Antonio Medical Plaza  


Our Life's Legacy. Your Health Future.

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.

Sierra San Antonio Medical Plaza

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!

Click here to download the Outpatient Services map and information.