Healthcare Insights
Largest individual ambulatory surgery centers and ASC companies by operating rooms
Ambulatory surgery centers (ASCs) are at the center of shifting trends in how Americans receive care. These outpatient surgical centers provide clinicians with a place to perform procedures that don’t require a hospital stay. Analysis of Medicare claims data suggests that many surgeries are increasingly being performed in ASCs rather than hospitals, as was once the norm.
The shift in care to ASCs offers some notable benefits, including a reduced strain on nearby hospital systems, lower procedure costs for payors, and a diminished risk of surgical site infections.
What’s the difference between an individual ASC and an ASC company?
The main difference between an individual ASC and an ASC company is the number of facilities. An individual ASC is one facility that exclusively provides outpatient surgical services that typically don't last more than 24 hours. By contrast, an ASC company is an entity that owns, manages, operates, or leases two or more facilities. Because an ASC company has more facilities, they’ll also have more operating spaces.
Using Definitive Healthcare’s SurgeryCenterView product, we were able to create a list of the top 10 largest individual ASCs and ASC companies by their total number of operating rooms. Data is updated daily and was accessed on July 31, 2023.
| Rank | Surgery Center Name | City | State | Definitive ID | Number of Operating Rooms | Explore dataset |
|---|---|---|---|---|---|---|
| 1 | Bayside Ambulatory Surgery Center | Miami | FL | 555341 | 81 | Explore |
| 2 | Camp Lowell Surgery Center | Tucson | AZ | 553695 | 70 | Explore |
| 3 | UCHealth Inverness Orthopedics and Spine Surgery Center | Englewood | CO | 1003911 | 60 | Explore |
| 4 | Odyssey ASC Endoscopy Center | Irvine | CA | 554718 | 51 | Explore |
| 5 | The Surgery Center of Aiken | Aiken | SC | 559061 | 42 | Explore |
| 6 | SurgCenter of Western Maryland | Cumberland | MD | 575121 | 41 | Explore |
| 7 | Jacksonville Beach Surgery Center | Jacksonville Beach | FL | 555275 | 41 | Explore |
| 8 | Barnet Dulaney Perkins Eye Center - Chandler | Chandler | AZ | 553719 | 40 | Explore |
| 9 | Surgical Center of Connecticut | Bridgeport | CT | 554892 | 40 | Explore |
| 10 | Charleston Surgery Center | Summerville | SC | 559006 | 40 | Explore |
Fig. 1 Data is from the Definitive Healthcare’s SurgeryCenterView product. Data is proprietary and was accessed on July 31, 2023.
Which individual ASCs have the most operating rooms?
The ASC with the most operating rooms is Bayside Ambulatory Surgery Center, based in Miami, Florida. This facility currently has 81 operating rooms and is affiliated with HCA Healthcare, the largest health system in the U.S. by net patient revenue and number of hospital members. It was one of several HCA Healthcare’s ASCs to make Newsweek’s list of America's Best Ambulatory Surgery Centers in 2022.
The ASC with the second most operating rooms is Camp Lowell Surgery Center, with 70. This facility is located in Tucson, Arizona, and is a member of United Surgical Partners International. It was ranked third in the state of Arizona in Newsweek’s list of America's Best Ambulatory Surgery Centers list.
Rounding out the top three is UCHealth Inverness Orthopedics and Spine Surgery Center, based out of Englewood, Colorado. This facility is a part of the University of Colorado Health System and provides services specific to fractures or injuries to the hands, shoulders, elbows, and the ACL, with some additional arthroscopic work on ligaments, tendons, and cartilage repair.
| Rank | Surgery Center Name | City | State | Definitive ID | Number of Operating Rooms | Exolore dataset |
|---|---|---|---|---|---|---|
| 1 | Envision Healthcare | Nashville | TN | 999046 | 720 | Explore |
| 2 | AMSURG | Nashville | TN | 574634 | 720 | Explore |
| 3 | HCA Surgery Center Division | Nashville | TN | 1040625 | 665 | Explore |
| 4 | PE GI Solutions | Jamison | PA | 574834 | 177 | Explore |
| 5 | SurgCenter Development | Towson | MD | 938525 | 176 | Explore |
| 6 | Covenant Physician Partners | Nashville | TN | 585426 | 139 | Explore |
| 7 | American Vision Partners | Tempe | AZ | 975939 | 77 | Explore |
| 8 | Azura Vascular Care | Malvern | PA | 851357 | 63 | Explore |
| 9 | Sovereign Healthcare | Mission Viejo | CA | 575858 | 55 | Explore |
| 10 | Barnet Dulaney Perkins Eye Center Corporation | Phoenix | AZ | 833490 | 55 | Explore |
Fig. 2 Data is from the Definitive Healthcare’s SurgeryCenterView product. Data is proprietary and was accessed on August 3, 2023.
Which ASC companies have the most operating rooms?
The ASC company with the most operating rooms is a tie between two Nashville-based companies, Envision Healthcare and AMSURG. AMSURG is a subnetwork within Envision Healthcare following its acquisition in 2016. As a result, the two companies share OR spaces.
In second place is HCA Surgery Center Division, also headquartered in Nashville, Tennessee. This company has 665 operating rooms and is a subnetwork within HCA Healthcare that owns and operates HCA Healthcare’s surgery centers across the country.
Which procedures are performed at ASCs?
ASCs are usually equipped to perform the same procedures as traditional hospitals. In fact, some research suggests that ASCs can perform those procedures at a lower cost and in less time compared to traditional hospital ORs.
Still, ASCs and hospitals differ in the types of procedures they typically handle. Some of the most common procedures performed at ASCs include cataract surgeries, colonoscopies, and injections. These are ideal for ASCs, which excel at diagnostic procedures and treatments for chronic conditions that don’t require hospitalization.
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