Top U.S. hospitals with the most operating rooms
While operating room square footage delivers a more granular metric for determining a healthcare facility’s size and overall capacity for complex procedures, a facility’s total number of ORs can indicate its ability to handle multiple operations simultaneously.
Using the Definitive Healthcare HospitalView product, we have listed the top 25 hospitals in the United States by the total number of operating rooms in each facility. The data is aggregated from the most recent 12-month interval tracked in our database.
|Number of operating rooms
|Cleveland Clinic Main Campus
|Houston Methodist Hospital (FKA the Methodist Hospital)
|Massachusetts General Hospital
|Corewell Health William Beaumont University Hospital (AKA Beaumont Hospital - Royal Oak)
|Mayo Clinic Hospital - Saint Marys Campus
|Thomas Jefferson University Hospital
|The Mount Sinai Hospital (AKA Mount Sinai Medical Center)
|Duke University Hospital
|Northwestern Memorial Hospital
|McDonough District Hospital
|Regency Hospital of Toledo (AKA Regency Toledo)
|Brigham and Womens Hospital
|NewYork-Presbyterian Komansky Childrens Hospital
|Erlanger Baroness Hospital (FKA Erlanger Medical Center - Baroness Campus)
|Mayo Clinic Hospital - Methodist Campus
|Lancaster General Hospital
|Wake Forest Baptist Medical Center
|Childrens Memorial Hermann Hospital
|Dartmouth-Hitchcock Medical Center
|Hospital of the University of Pennsylvania
|Memorial Hermann - Texas Medical Center
|Inova Fairfax Hospital (AKA Inova Fairfax Medical Campus)
|University of Iowa Hospitals & Clinics
Which U.S. hospitals have the most operating rooms?
The U.S. hospital with the most operating rooms is Cleveland Clinic Main Campus. This Ohio-based hospital is also a top U.S. hospital by net patient revenue (third place) and is a top teaching hospital by number of staffed beds (second place). With a higher capacity for patient care, as well as a high net patient revenue (NPR), Cleveland Clinic Main Campus sees more patients for surgical procedures, and is a top hospital by total annual surgeries.
The second top hospital by number of operating rooms is Houston Methodist Hospital. Like Cleveland Clinic Main Campus, Houston Methodist Hospital also makes the list of top teaching hospitals by number of staffed beds (seventh place). With a higher bed capacity, as well as the responsibility to provide teaching opportunities for a variety of procedures, this hospital requires a greater number of ORs.
Massachusetts General Hospital comes in third place in the list of top hospitals by ORs. Not only does this hospital have a large number of ORs, but it also comes in third place on the list of top hospitals with the highest operating room costs.
How does operating room capacity differ based on a hospital’s location?
In the U.S., hospitals’ operating room capacities may differ based on location relative to the area population. In particular, hospitals in large metropolitan areas with larger patient populations tend to have more ORs compared to hospitals in rural areas. Since most patients tend to seek surgical care in regions in which they reside, it is expected that areas with larger populations require greater facility capacity to accommodate more procedures.
For example, multiple hospitals in the list above, such as Houston Methodist Hospital and Memorial Hermann - Texas Medical Center in Houston, Thomas Jefferson University Hospital and Hospital of the University of Pennsylvania in Philadelphia, and The Mount Sinai Hospital and NewYork-Presbyterian Komansky Children’s Hospital in New York City, are in some of the largest cities in the country by population.
What are the different types of operating rooms?
The three main types of operating rooms are digital, hybrid, and integrated, and each OR type is designed to meet the differing needs of hospitals and the patient populations they serve.
Digital operating rooms are built around a central data system that integrates imaging, software, and video data systems. These ORs enable simpler sharing, transfer, and collection of medical data, which may be referenced during the operation or used afterward to assess outcomes and inform care plans.
Hybrid operating rooms bring together surgical equipment and medical imaging devices, which allows imaging to be done right in the OR. Hybrid ORs are equipped for most surgical disciplines but are generally best suited to those requiring high-resolution imaging of smaller body parts, such as cardiovascular or neurological surgery.
Integrated operating rooms contain integrated surgical systems that combine lighting, audio, video, and operating equipment in a single, centrally controlled unit. This integration improves surgical efficiency by eliminating the need to move equipment to and from the operating table during a procedure.
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