Avanza Healthcare Strategies developed an interactive map showcasing the number of Medicare-certified ASCs in each state. Here are the 20 states with the most ASCs, as of 2016.
1. California: 768
2. Florida: 409
3. Texas: 353
4. Maryland: 340
5. Georgia: 327
6. New Jersey: 268
7. Pennsylvania: 234
8. Washington: 196
9. Ohio: 185
10. Arizona: 171
11. Tennessee: 142
12. New York: 132
13. Indiana: 123
14. Illinois: 122
15. Colorado: 121
16. North Carolina: 102
17. Missouri: 97
18. Michigan: 91
19. Oregon: 90
20. Louisiana: 80