While every U.S. state has ASCs operating in 2022, some states have more than others, with California topping the list at 845 Medicare-certified ASCs according to the ASC Association.
Eighteen states with over 100 Medicare-certified ASCs as of March:
California: 845
Florida: 463
Texas: 461
Georgia: 386
Maryland: 342
New Jersey: 260
Pennsylvania: 246
Arizona: 211
Ohio: 198
Washington: 184
New York: 158
Tennessee: 137
North Carolina: 137
Colorado: 136
Indiana: 134
Illinois: 133
Michigan: 112
Missouri: 101