Start of Main Content

Healthcare Insights

Top U.S. hospitals with the most operating rooms

Operating rooms (ORs) are among hospitals’ most critical resources, as they provide the space and equipment necessary to perform surgeries and other intensive procedures.

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.

Top 25 hospitals by number of operating rooms

RankHospital nameCityStateDefinitive IDNumber of operating roomsExplore dataset
1Cleveland Clinic Main CampusClevelandOH312085Explore
2Houston Methodist Hospital (FKA the Methodist Hospital)HoustonTX401278Explore
3Massachusetts General HospitalBostonMA197370Explore
4Corewell Health William Beaumont University Hospital (AKA Beaumont Hospital - Royal Oak)Royal OakMI206670Explore
5Mayo Clinic Hospital - Saint Marys CampusRochesterMN219170Explore
6Barnes-Jewish HospitalSaint LouisMO244265Explore
7Thomas Jefferson University HospitalPhiladelphiaPA357262Explore
8The Mount Sinai Hospital (AKA Mount Sinai Medical Center)New YorkNY283758Explore
9Duke University HospitalDurhamNC297354Explore
10Northwestern Memorial HospitalChicagoIL113554Explore
11McDonough District HospitalMacombIL121946Explore
12Regency Hospital of Toledo (AKA Regency Toledo)SylvaniaOH553345Explore
13Brigham and Womens HospitalBostonMA196944Explore
14NewYork-Presbyterian Komansky Childrens HospitalNew YorkNY54197743Explore
15Erlanger Baroness Hospital (FKA Erlanger Medical Center - Baroness Campus)ChattanoogaTN376642Explore
16Hartford HospitalHartfordCT71842Explore
17Mayo Clinic Hospital - Methodist CampusRochesterMN219240Explore
18Lancaster General HospitalLancasterPA351940Explore
19Wake Forest Baptist Medical CenterWinston SalemNC297640Explore
20Childrens Memorial Hermann HospitalHoustonTX27415039Explore
21Dartmouth-Hitchcock Medical CenterLebanonNH262539Explore
22Hospital of the University of PennsylvaniaPhiladelphiaPA357139Explore
23Memorial Hermann - Texas Medical CenterHoustonTX401839Explore
24Inova Fairfax Hospital (AKA Inova Fairfax Medical Campus)Falls ChurchVA427139Explore
25University of Iowa Hospitals & ClinicsIowa CityIA146138Explore

Fig. 1 Data is from the Definitive Healthcare HospitalView product and is aggregated from the most recent 12-month interval tracked in our database. Accessed in July 2023.

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.

Learn more

Healthcare Insights are developed with healthcare commercial intelligence from the Definitive Healthcare platform. Want even more insights? Start a free trial now and get access to the latest healthcare commercial intelligence on hospitals, physicians, and other healthcare providers.