Top 10 ambulatory surgery centers 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 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 reducing strain on nearby hospital systems, lower procedure costs for payors and a diminished risk of surgical site infections.

Which ambulatory surgery center corporations have the most operating rooms?

About two-thirds of ASCs are fully owned by physicians, while others are owned solely by or in collaboration with hospitals and corporations.

ASCs can perform a wide variety of high-volume and expensive procedures, making them potentially high-earning facilities. While having more operating rooms (ORs) doesn't always mean more income, our claims data show a strong correlation between the number of ORs and total Medicare charges.

Envision Healthcare of Nashville, Tennessee leads the country's ASCs with 720 ORs and reports more than $266 million in Medicare charges. Runner-up HCA Healthcare's Surgery Center Division maintains 693 ORs and brings in more than $151 million in Medicare charges annually.

10 leading ambulatory surgery centers by number of operating rooms


Rank

Definitive ID

Surgery Center Corporation
   
City
   
State  
   
Number of ORs

Total Medicare Charges
   
1
   
999046

Envision Healthcare
   
Nashville
   
TN   
   
720
   
$266,108,210
   
   
1040625 

HCA Surgery Center Division
   
Nashville
   
TN
   
693
  
$151,628,931 
   
3
   
93852 

SurgCenter Development
   
Towson
   
MD   
   
225
   
$50,203,610
   
4
   
574834

Physicians Endoscopy
   
Jamison
   
PA
   
186
   
$40,345,173
   
5   
   
585426 

Covenant Physician Partners
   
Nashville
   
TN
   
145
   
$40,990,864
   
   
975939

American Vision Partners
   
Tempe
   
AZ 
 
73
   
$21,384,241
   
7
   
851357

Azura Vascular Care
   
Malvern
   
PA   
   
62
   
$58,887,813
   
8
   
574630  

Ambulatory Surgical Centers of America
   
Hanover  
   
MA   
   
58
   
$17,634,291
   
9
   
575858

Sovereign Healthcare
   
Mission Viejo
   
CA

55
   
$12,526,187
   
9
   
833490

Barnet Dulaney Perkins Eye Center Corporation
   
Phoenix
   
AZ 
   
55
   
$12,857,613

Fig 1. Data from the Definitive Healthcare SurgeryCenterView product. Data gathered February 2022.

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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