For registration and housing questions, contact the ASTRO Registration and Housing Center:
1-800-541-6058 or 703-449-6418


Registration and Housing for ASTRO’s 2021 Annual Meeting will open in July 2021. This page will continue to be updated prior to then with registration fees and policies as well as information on official 2021 ASTRO hotels. Please continue to check back for further information.

Housing Piracy

ASTRO works with SPARGO Inc., the official registration and housing provider for the 2021 Annual Meeting. If you are contacted by anyone who is not a representative of SPARGO Inc., asking if you need assistance with hotel accommodations or registration for the ASTRO Annual Meeting, please get as much information as you can and pass it along to us. Learn more about our Housing Poachers and Pirates Policy

American Society for Radiation Oncology
251 18th Street South, 8th Floor
Arlington, VA 22202
Telephone: 703-502-1550


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