Emergency? Call 911.
Our emergency rooms are open 24/7, holidays included.
Health Library
What a Freestanding Emergency Room Is, and How It Differs From a Hospital ER
Published September 17, 2026 · 4 min read
If this may be life-threatening, call 911. Paramedics begin treatment on the way and can tell us you are coming.
A freestanding emergency room is an emergency department that does not have an inpatient hospital attached to it. That is the whole definition. Everything people find confusing about the category follows from that one structural fact.
It is not an urgent care. It is not a walk-in clinic with ambitions. And it is not a hospital either — which is the part worth being straight about rather than glossing.
What is actually in the building
At both of ours:
| Open | 24 hours a day, 7 days a week, 365 days a year. Walk in — no appointment, no referral |
|---|---|
| Seen by | A board-certified provider, every visit |
| Imaging and lab | CT, X-ray and a full laboratory in the building, staffed around the clock |
| Critical care | A critical care room at each location |
| Observation | The capability to hold and monitor a patient for up to 24 hours |
Ultrasound is the one exception — it is called in from an outside mobile service, often during the visit if ordered early enough, and otherwise the next day. It is named separately because it is not in the building, and a list that blurred the two would be doing something dishonest.
Both of our emergency rooms carry the same equipment and the same service list, so the answer to “which one should I go to” is simply whichever is closer.
The comparison people actually want
| A clinic | A freestanding emergency room | A hospital emergency department | |
|---|---|---|---|
| Hours | Set hours, closed at night and weekends | Every hour of every day | Every hour of every day |
| Appointment | Usually | None | None |
| CT and laboratory on site | Rarely | Yes | Yes |
| Can admit you to a bed upstairs | No | No — we stabilise and transfer | Yes |
| Surgical theatres, specialist services | No | No | Often |
| Everyone in the building is an emergency patient | No | Yes | No — it is a campus |
Two rows do most of the work. The one about CT and laboratory is why a freestanding emergency room can answer a question tonight that a clinic would have to refer onward. The one about beds is why, if you need admitting, there is a move.
“Is it a real emergency room?”
Yes — and the question is fair, because the category is newer than most people’s mental model of healthcare and the name does not help.
Ours are full-scope emergency rooms to Arizona standard, and both carry the same service list. What that means in practice is that they are not built to select the easy presentations: chest pain, breathing difficulty, injury, infection, abdominal pain, allergic reaction, heat illness and stroke are assessed and treated here, not triaged at the door and sent elsewhere.
A freestanding emergency room without a CT scanner in the building would be an urgent care with ambitions. Ours have one, staffed around the clock, and that is the line the category stands or falls on.
And the honest half: not a hospital
We are not a hospital, and we are not trying to be one.
If you need an inpatient bed, an operating theatre or a specialist service, the answer is that we get you to one. We provide emergency intervention, stabilise you here, and arrange the transfer — with your imaging and results going with you, and the decision made on evidence rather than a guess. The detail is in what happens if you need to be admitted.
That is the design rather than a limitation, and here is why it is in your favour while you are in the building: there is no inpatient census pulling the team upstairs, we are not absorbing ambulance diversions for a hospital campus, and it is one department rather than a site.
None of that is a promise about your visit. It is a description of the building.
Why the category exists at all
Because in an emergency, distance is clinical rather than logistical. The minutes between a community and its nearest emergency department are the ones that matter most in cardiac, stroke and trauma cases, and a full hospital cannot be built in every town that needs an emergency door.
A freestanding emergency room is the answer to that arithmetic: the emergency capability, closer, without the campus.
Questions people actually ask
Do you take ambulances? Yes. Paramedics route to the facility appropriate for the patient, and for anything life-threatening you should call 911 and let them choose the destination.
Is it more expensive than an urgent care? An emergency visit bills at emergency rates, which are not clinic rates, and we would rather say so than let you find out afterwards. Ability to pay is not a barrier to assessment and access to care in our emergency rooms, and by law.
Can you keep me overnight? We can hold and monitor you for up to 24 hours where observation is the right call. Admission means a transfer.
Do you treat children? We are not a pediatric emergency room, and we treat children every day. Where a child needs a specialist level of paediatric care, we arrange the transfer.
Should I come here or go to a hospital? For anything life-threatening, call 911 and go to the nearest emergency room — the nearest one, not ours if something closer exists. Minutes matter more than continuity.
Both of our emergency rooms are open 24 hours a day, every day of the year — walk in, no appointment and no referral, with CT, X-ray and a full laboratory in the building. Find your nearest emergency room →
Related reading: which door do you need · what happens if you need to be admitted
If it might be an emergency, treat it as one. Both of our emergency rooms are open 24 hours a day, every day of the year — walk in, no appointment and no referral.
Find your nearest emergency room →About your bill, before you worry about it
Ability to pay is not a barrier to assessment and access to care in our emergency rooms — by law. An emergency visit bills at emergency rates, which are not clinic rates, and we would rather tell you that now than have you find out afterwards.
If anything you receive after a visit is unclear, call the facility you were seen at before you pay it. They hold the record of your visit, and they would rather explain a statement than have you pay something you do not owe.