Orthopedics is the most common ASC specialty, according to the ASC Association.
This information comes from December data from CMS.
Here is the percentage of Medicare-certified ASCs that offer each specialty:
Orthopedic: 37 percent
Pain: 36 percent
Ophthalmology: 35 percent
Endoscopy: 32 percent
Plastic: 29 percent
Podiatry: 28 percent
Otolaryngology: 23 percent
Obstetrics/Gynecology: 19 percent
Dental: 8 percent