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To main Entrance
You could wait outside too
Comfy waiting room
Lobby
Sierra San Antonio Medical Plaza Emergency & Urgent Care

Website: sarh.org

Phone: (909) 434-1150

Closed now

  • Tue 9:00 AM - 8:00 PM

16465 Sierra Lakes Pkwy Fontana, CA 92336 ·2140.65 mi

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Reviews

yelp
2.0 61 reviews
5 star
11 4 star
1 3 star
2 2 star
5 1 star
42
Derek D. 07/12/22

I have been to this location a few times as well as the San Antonio's location in Rancho Cucamonga and both are god awful in terms of overall wait times. It does not matter whether you have an...

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Eddie M. 07/15/26

HORRIBLE! STAY AWAY! 3hrs just for a sports physical for my 7yo daughter (that was paid for out of pocket at check-in)! Absolutely ridiculous, NEVER AGAIN!

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Michael H. 12/30/25

This place is a joke. Don't waste your time or money. They won't help you. Paid $100 bucks for them to tell me to go somewhere else.

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Stephanie R. 09/23/25

I went in as a walk in and it took nearly 2 hours to get called back. They shouldn't take walk in if their wait time is horrible and they didn't communicate with me on how long I would be waiting...

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Lety S. 10/02/21

This place was remodeled since the last time I visited. It's larger facility which makes it easy to social distance from the sick, these days it's super important. The staff is very professional...

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