| State | Institution | Director |
|---|
| Alabama | University of Alabama | Mark Hadley |
| Arizona | Barrow Neurological Institute | Nicholas Theodore |
| California | University of California, Davis | Kee Kim |
| California | University of California, Los Angeles | Larry Khoo |
| California | University of California, Los Angeles | Langston Holly |
| California | University of California, San Diego | Larry Marshall |
| California | University of California, San Francisco | Christopher Ames |
| California | Cedars-Sinai Spine Institute | Rick Delamarter/John Liu |
| California | University of California, San Francisco | Praveen Mummaneni |
| Florida | University of Miami | Barth Green |
| Florida | University of Miami | Allan Levi |
| Florida | University of Miami | Michael Wang |
| Georgia | Emory University | Rusty Rodts |
| Georgia | Atlanta Brain and Spine Institute | Regis Haid |
| Illinois | Northwestern University | Steve Ondra |
| Illinois | Northwestern University | Rick Fessler |
| Indiana | Goodman Campbell Brain and Spine | Eric Potts |
| Iowa | University of Iowa | Vince Traynelis |
| Kentucky | University of Louisvile | Christopher Shields |
| Kentucky | Univeristy of Kentucky, Lexington | Phillip Tibbs |
| Maryland | Johns hopkins | Ziya Gokaslan |
| Massachusetts | New England Baptist | Eric Woodard |
| Massachusetts | Beth Israel/Harvard | Michael Groff |
| Michigan | University of Michigan | Frank LaMarca, MD |
| Michigan | Wayne State | Setti Rengachary |
| Missouri | Washington University, St. Louis | Neill Wright |
| New Jersey | UMDNJ, Newark | Bob Heary |
| New York | NYU Medical Center | Paul Cooper |
| New York | Columbia University | Michael Kaiser |
| New York | University of Rochester | Glenn Rectine |
| North Carolina | Wake Forest University | Charles Branch |
| Ohio | Ohio State University | Ehud Mendel |
| Ohio | University of Cincinnati, Mayfield | Charles Kuntz |
| Ohio | Cleveland Clinic | Ed Benzel |
| Pennsylvania | University of Pittsburgh | William Welch |
| Pennsylvania | Thomas Jefferson | Jim Harrop |
| Tennessee | Vanderbilt University | Joseph Cheng |
| Tennessee | University of Tennessee, Memphis | Kevin Foley |
| Texas | University of Texas, Dallas | Howard Morgan |
| Utah | University of Utah | Ron Apfelbaum |
| Virginia | University of Virginia | Chris Shaffrey |
| Wisconsin | University of Wisconsin, Madison | Gregory Trost |
| Wisconsin | University of Wisconsin, Madison | Daniel Resnick |
| Wisconsin | Medical College of Wisconsin | Dennis Maiman |
