Live Updated 7 min ago
26min
current ed wait
6 min longer than usual
20 min
avg today
20 min
avg overall
130 min
longest seen
Typical wait for non-urgent cases. Patients are seen in order of clinical priority. The most seriously ill are always seen first, no matter how busy the ER is.
Refreshing in 5:00
Source: Memorial Hermann · auto-refreshed every 30 min · details
Life-threatening symptoms? Call 911. Don't rely on this site to make that decision.
Wait time, last 24 hours
Under 30 min 30 - 60 min Over 60 min Typical next few hours
Typical wait by hour of the day

Average wait at each hour, across every reading we have.

Hour-by-hour breakdown
HourAvg. waitTrend
Today, 4 AM
avg. of 2 readings
21 min falling
Today, 3 AM
avg. of 4 readings
24 min rising
Today, 2 AM
avg. of 4 readings
21 min steady
Today, 1 AM
avg. of 4 readings
22 min steady
Today, 12 AM
avg. of 4 readings
22 min steady
Yesterday, 11 PM
avg. of 4 readings
22 min falling
Yesterday, 10 PM
avg. of 4 readings
25 min steady
Yesterday, 9 PM
avg. of 4 readings
27 min steady
Yesterday, 8 PM
avg. of 4 readings
28 min falling
Yesterday, 7 PM
avg. of 4 readings
30 min steady
Yesterday, 6 PM
avg. of 4 readings
30 min steady
Yesterday, 5 PM
avg. of 4 readings
28 min rising
Yesterday, 4 PM
avg. of 4 readings
20 min rising
Yesterday, 3 PM
avg. of 4 readings
16 min steady
Yesterday, 2 PM
avg. of 4 readings
16 min steady
Yesterday, 1 PM
avg. of 4 readings
16 min steady
Yesterday, 12 PM
avg. of 4 readings
16 min steady
Yesterday, 11 AM
avg. of 4 readings
16 min steady
Yesterday, 10 AM
avg. of 4 readings
15 min rising
Yesterday, 9 AM
avg. of 4 readings
12 min falling
Yesterday, 8 AM
avg. of 4 readings
14 min steady
Yesterday, 7 AM
avg. of 4 readings
14 min steady
Yesterday, 6 AM
avg. of 4 readings
12 min rising
Yesterday, 5 AM
avg. of 4 readings
10 min -
Visit Fort Bend County
Address
23900 KATY FREEWAY
Katy, TX 77494
Phone
Voluntary non-profit - Private
HoursOpen 24/7 Websitememorialhermann.org
Facilities & services
294
total beds
14
operating rooms
General acute care
facility type
Emergency & critical care
Dedicated ERShock / traumaICUEmergency psych
Imaging
CTMRIDiagnostic radiology
Surgery
Inpatient surgeryCath labAnesthesiology
Other services
Renal dialysisPharmacy
Accessibility & amenities
Wheelchair-accessible entrance Wheelchair-accessible parking Wheelchair-accessible restroom Wheelchair-accessible seating Public restrooms Paid parking lot Apple Pay / Google Pay
ER performance
Typical ER visit length
Median time from arrival to leaving.
4 hr 2 min of 399 patients
Patients who left before being seen
Walked out before being seen, usually due to long waits.
1% of 74,116 visits
Head CT scan time for stroke
Time from arrival to head CT for suspected stroke. Faster is better.
1 hr 6 min of 29 patients
Compared to other US hospitals
Patient safety
Rates of infections, clots, falls and surgical complications during a stay.
Above average
Avoiding readmission
Patients returning within 30 days for the same condition.
- About average
Infection rates lower is better
Central-line bloodstream infections
Bloodstream infections from a central IV line. Known as CLABSI.
Better than average
0.00 1.00 = national avg
Catheter urinary-tract infections
UTIs from a urinary catheter. Known as CAUTI.
Better than average
0.23 1.00 = national avg
Colon surgery site infections
Wound infections after colon surgery.
- About average
0.91 1.00 = national avg
Hysterectomy site infections
Wound infections after abdominal hysterectomy.
- About average
2.14 1.00 = national avg
MRSA bloodstream infections
Drug-resistant staph in the bloodstream.
- About average
0.27 1.00 = national avg
C. diff (intestinal) infections
Gut infections, often after antibiotics.
Better than average
0.23 1.00 = national avg
What patients say
Overall HCAHPS rating
Hospital rating
70% rated 9 or 10 of 10
70%
Would recommend
69% would definitely recommend
69%
Nurse communication
75% said nurses always communicated well
75%
Doctor communication
75% said doctors always communicated well
75%
Cleanliness
74% said the room was always clean
74%
Quietness at night
63% said the area was always quiet at night
63%
Clinicians on staff
625
total clinicians
22
ER physicians
By specialty
Radiology 93
Internal medicine 73
Orthopedic surgery 26
Obstetrics / gynecology 25
General surgery 19
Anesthesiology 19
Cardiology 18
Neurology 14
Interventional cardiology 11
Pulmonology 8
Hematology / oncology 7
Interventional radiology 4
Critical care 2
Where this number comes from

Memorial Hermann publishes this wait time on its website, mychart.memorialhermann.org . We check it about every 30 minutes and show you the most recent number.

  • What it means: How long someone arriving right now would likely wait to see a doctor.
  • Last updated: 4:23am on 11 Jun 2026 (hospital local time)
Frequently asked questions
How long is the wait at Memorial Hermann Katy Hospital?

The most recently published wait at Memorial Hermann Katy Hospital is 26 minutes, as of 4:23am hospital local time. The all-time average for this ER is around 20 minutes. Wait times change quickly , call the ER to confirm before you travel.

Should I go to the ER or to urgent care?

For life-threatening symptoms , chest pain, stroke signs (face drooping, arm weakness, speech difficulty), severe bleeding, breathing difficulty, or loss of consciousness , call 911 and head to the ER. For minor injuries, fevers, low-grade illness, or anything non-emergency, urgent care is usually faster and cheaper. See urgent care near Katy.

Is Memorial Hermann Katy Hospital open 24 hours?

Most Medicare-certified ERs in the US run 24 hours a day, seven days a week. To confirm the current status of Memorial Hermann Katy Hospital, call (281) 392-1111.

Where is Memorial Hermann Katy Hospital located?

Memorial Hermann Katy Hospital is located at 23900 Katy Freeway, Katy, TX, 77494. Phone: (281) 392-1111.