ER Wait Times in Baltimore, MD: 10 Hospitals Compared
10 hospitals in Baltimore, MD report how long their emergency room patients stay. The middle value here is 245 minutes; Maryland: 241 minutes; national (Medicare): 162 minutes.
What this time means
Each hospital’s number is Medicare measure OP-18b: the median (middle) time from arriving at the emergency room to leaving it, for patients who were treated and went home. Half of these patients left sooner, half later. It is not the time before seeing a doctor, and it leaves out patients who were admitted to the hospital, transferred, or seen for mental health.
Medicare’s name for the measure: “Average (median) time patients spent in the emergency department before leaving from the visit, excluding patients transferred to another facility or psychiatric care/mental health patients. A lower number of minutes is better”. Patients seen October 2024 to September 2025.
Emergency rooms in Baltimore, MD, shortest time first
Ranked by Medicare's median time (OP-18b), shortest first; hospitals with the same time share a rank. Left without being seen: share of ER patients who left before a doctor or nurse saw them (January 2024 to December 2024; national 2%). ER volume: patients per year, as Medicare groups it.
| # | Hospital | Median time in the ER | Left without being seen | ER volume |
|---|---|---|---|---|
| 1 | MedStar Harbor Hospital | 212 min (3 h 32 min) | 4% | High (40,000–59,999) |
| 2 | MedStar Union Memorial Hospital | 218 min (3 h 38 min) | 2% | High (40,000–59,999) |
| 3 | Greater Baltimore Medical Center | 228 min (3 h 48 min) | 4% | High (40,000–59,999) |
| 4 | Mercy Medical Center Inc | 237 min (3 h 57 min) | Not reported | — |
| 5 | University of MD Medical Center Midtown Campus | 243 min (4 h 3 min) | Not reported | — |
| 6 | MedStar Good Samaritan Hospital | 247 min (4 h 7 min) | 4% | High (40,000–59,999) |
| 7 | Sinai Hospital of Baltimore | 257 min (4 h 17 min) | 2% | Very high (60,000 or more) |
| 8 | The Johns Hopkins Hospital | 308 min (5 h 8 min) | 6% | Very high (60,000 or more) |
| 9 | University of Maryland Medical Center | 309 min (5 h 9 min) | Not reported | — |
| 10 | Johns Hopkins Bayview Medical Center | 322 min (5 h 22 min) | 3% | High (40,000–59,999) |
Other cities in Maryland
Common questions
Which ER in Baltimore, MD has the shortest wait?
In Medicare's data for October 2024 to September 2025, MedStar Harbor Hospital had the shortest median time patients spent in the emergency room before going home: 212 minutes. This is the total time of the visit, not the time before seeing a doctor, and it is an average of past patients, not a promise for your visit.
What is the average ER wait time in Baltimore, MD?
The middle value of the 10 hospitals listed here is 245 minutes; for all of Maryland it is 241 minutes. The national figure published by Medicare is 162 minutes. Each hospital's number is the median time from arriving at the emergency room to leaving it, for patients who were treated and went home.
Should I drive to a farther ER to wait less?
No. In an emergency, call 911 or go to the nearest emergency room. These times are past averages; emergency rooms see the sickest patients first, and minutes lost on the road can matter more than minutes in a waiting room.
Does a shorter time mean a better emergency room?
Not by itself. Busier emergency rooms and hospitals that treat more serious cases usually have longer times, so the ER volume is shown next to each time. The time is one measure among many on each hospital’s page.
Sources and dates
- Timely and Effective Care - Hospital — Centers for Medicare & Medicaid Services (CMS), data updated July 22, 2026, retrieved October 31, 2026. Times: patients seen October 2024 to September 2025; left without being seen: January 2024 to December 2024.
- Timely and Effective Care - National — CMS, data updated July 22, 2026 (the national figures).
Only open hospitals that list an emergency room and report this time are included. The state and city figures are the median of the hospitals listed, calculated by us from the same CMS hospital file. Wording last revised November 11, 2026. Not medical advice.