There are 6,468 Medicare-certified ASCs in the U.S., according to CMS data.
ASCA reported the number of ASCs by state as of March 2025.
Below is the breakdown of Medicare-certified surgery centers in each state:
| Alabama | 51 |
| Alaska | 18 |
| Arizona | 239 |
| Arkansas | 84 |
| California | 896 |
| Colorado | 132 |
| Connecticut | 54 |
| Delaware | 22 |
| District of Columbia | 2 |
| Florida | 517 |
| Georgia | 423 |
| Guam | 2 |
| Hawaii | 24 |
| Idaho | 61 |
| Illinois | 136 |
| Indiana | 140 |
| Iowa | 34 |
| Kansas | 75 |
| Kentucky | 39 |
| Louisiana | 89 |
| Maine | 15 |
| Maryland | 347 |
| Massachusetts | 58 |
| Michigan | 126 |
| Minnesota | 92 |
| Mississippi | 79 |
| Missouri | 98 |
| Montana | 25 |
| Nebraska | 51 |
| Nevada | 84 |
| New Hampshire | 29 |
| New Jersey | 250 |
| New Mexico | 23 |
| New York | 182 |
| North Carolina | 152 |
| North Dakota | 15 |
| Ohio | 210 |
| Oklahoma | 40 |
| Oregon | 91 |
| Pennsylvania | 239 |
| Puerto Rico | 28 |
| Rhode Island | 15 |
| South Carolina | 81 |
| South Dakota | 15 |
| Tennessee | 156 |
| Texas | 497 |
| Utah | 63 |
| Vermont | 2 |
| Virgin Islands | 4 |
| Virginia | 74 |
| Washington | 171 |
| West Virginia | 7 |
| Wisconsin | 91 |
| Wyoming | 20 |
