{"entity":{"id":"johns-hopkins-proton-therapy-center","kind":"institution","name":"Johns Hopkins Proton Therapy Center (Sibley Memorial Hospital)","aka":["Johns Hopkins National Proton Therapy Center","Johns Hopkins Proton Therapy Center"],"tldr":"Johns Hopkins' proton therapy centre at Sibley Memorial Hospital in Washington, DC, opened in October 2019 with Children's National Hospital, which supplies a dedicated paediatric team.","summary":"Children's National Hospital reported on 31 October 2019 that the Johns Hopkins Proton Therapy Center opened on 28 October 2019 at Sibley Memorial Hospital, in collaboration with Children's National, giving the Washington region its only proton centre with a dedicated paediatric team. It offers pencil-beam proton therapy with a 360-degree gantry, dual-energy CT guidance and MRI for moving tumours, and a research room. It was opening in phases: the first treatment room in October 2019, with the second, third and a fixed-beam research room then scheduled for 2020. NAPT lists it at 5255 Loughboro Road NW, Washington, DC.","asOf":"2026-11-04","links":[{"label":"Johns Hopkins Proton Therapy Center opens in collaboration with Children's National (31 October 2019)","url":"https://innovationdistrict.childrensnational.org/johns-hopkins-proton-therapy-center-opens-in-collaboration-with-childrens-national/"},{"label":"National Association for Proton Therapy: Find a Center","url":"http://proton-therapy.org/findacenter/"}],"tags":[],"related":[],"cancers":[],"sections":[],"technologies":["proton-therapy","intensity-modulated-proton-therapy"],"targets":[],"drugs":[],"companies":[],"institutions":["johns-hopkins","childrens-national-hospital"],"pathways":[],"terms":[],"trials":[],"people":[],"bottlenecks":[],"keyPapers":[],"journals":[],"dependsOn":[],"notes":["hopkinsmedicine.org answered 403 on 4 November 2026. Whether the 2020 rooms opened as scheduled was not confirmed on a page read, so the summary gives the 2019 plan only."],"city":"Washington","country":"US","lat":38.937,"lng":-77.109,"institutionType":"hospital","programs":[]},"route":"/institutions/johns-hopkins-proton-therapy-center/","neighbours":{"technology":[{"id":"intensity-modulated-proton-therapy","kind":"technology","name":"Pencil-beam scanning and intensity-modulated proton therapy","route":"/technologies/intensity-modulated-proton-therapy/"},{"id":"proton-therapy","kind":"technology","name":"Proton therapy","route":"/technologies/proton-therapy/"}],"institution":[{"id":"childrens-national-hospital","kind":"institution","name":"Children's National Hospital","route":"/institutions/childrens-national-hospital/"},{"id":"johns-hopkins","kind":"institution","name":"Johns Hopkins Hospital / Sidney Kimmel Comprehensive Cancer Center","route":"/institutions/johns-hopkins/"}]}}