U.S. proton therapy centers
- CDH Proton Center, A ProCure Center, in suburban Chicago, Illinois
- ProCure Proton Therapy Center, Oklahoma City, Oklahoma
- ProCure Proton Therapy Center in New Jersey/Metro New York
- Loma Linda University Medical Center (LLUMC) in Loma Linda, California
- Francis H. Burr Proton Therapy Center at Massachusetts General Hospital
- The Midwest Proton Radiotherapy Institute at Indiana University
- The Proton Therapy Center at the M.D. Anderson Cancer Treatment Center
- The Roberts Proton Therapy Center at the University of Pennsylvania
- The Florida Proton Therapy Institute at the University of Florida Shands Medical Center and LLUMC
- Hampton University Proton Therapy Institute in Virginia
In addition, there is a specialty proton center that treats only cancers of the eye at the University of California, Davis.