Click on the corresponding state to find the clinical facilities that have collaborative agreements with the National MS Society. Each appropriate chapter clinical advisory committee, composed of MS experts, periodically reviews and approves the affiliations.
| Alabama | Montana |
| Alaska | Nebraska |
| Arizona | Nevada |
| Arkansas | New Hampshire |
| California | New Jersey |
| Colorado | New Mexico |
| Connecticut | New York |
| Delaware | North Carolina |
| District of Columbia | North Dakota |
| Florida | Ohio |
| Georgia | Oklahoma |
| Hawaii | Oregon |
| Idaho | Pennsylvania |
| Illinois | Rhode Island |
| Indiana | South Carolina |
| Iowa | South Dakota |
| Kansas | Tennessee |
| Kentucky | Texas |
| Louisiana | Utah |
| Maine | Vermont |
| Maryland | Virginia |
| Massachusetts | Washington |
| Michigan | West Virginia |
| Minnesota | Wisconsin |
| Mississippi | Wyoming |
| Missouri | Pediatric MS Centers of Excellence |