Group Registration & Hotels

Register a group for the 2019 Gastrointestinal Cancers Symposium.

There are several conveniences to registering as a group rather than individually

  • Easier Invoicing: Group leaders can be invoiced for the entire group. Individuals must pay individually and registrations without payment are not accepted. Registration confirmations serve as an invoice for individual attendees.
  • Easier Communication: Communications regarding a group are sent to the group leaders. Communications regarding an individual registrant are sent to that registrant.
  • Easier Registration: Group leaders will need to enter a unique email address to register each delegate. Individual attendees must use their login and password to register as a member or guest.
  • Easier Material Pick Up: Group leaders can arrange badge and meeting materials pick up for the entire group. Individual attendees receive mailed badges in advance and must pick up meeting materials onsite individually. If badges are not received in advance, the badge may be issued only to the individual attendee onsite. Photo identification is required.
  • Easier Change or Cancellations: Group leaders manage changes to the delegates in their group. Once an individual attendee is registered, only the registrant will have access to the registration for changes and cancellations.

Group Hotel Reservations

**Please read this important message regarding Unauthorized Hotel Reservation Agencies or "Hotel Reservation Poachers."**

Create a Room Block through the Gastrointestinal Cancers Symposium Customer Service Center.

Please Note

  • Payments for group room blocks are non-refundable and must be paid in full by payment due date
  • Groups will manage their room block through an online room block management website
  • If groups book rooms directly with a hotel, each individual in the group will be charged an additional registration fee of $150. Payment of all registration fees must be received prior to meeting badges or materials being released to the group contact or individual attendees.

Hotel Update

Hotel reservations, changes, or cancellations are no longer being accepted online. Changing or canceling an existing reservation? Contact the hotel directly at the phone number listed below. Cancellations must be made 72 hours prior to your arrival date to avoid cancellation fees 

Need to make a reservation? The following hotels might have availability; contact the hotel directly to inquire about available rooms. Discounted Symposium rates subject to availability. 

San Francisco Marriott Marquis 
780 Mission Street, San Francisco, CA 94103 
(415) 896-1600 

Hilton Union Square
33 O'Farrell Street, San Francisco, CA 94102
(415) 771-1400 

Hotel Nikko San Francisco
222 Mason Street, San Francisco, CA 94102
(415) 394-1111

Hotel Zelos 
12 Fourth Street, San Francisco, CA 94103 
(415) 348-1111 

Intercontinental Hotel San Francisco 
888 Howard Street, San Francisco, CA 94103, 
(415) 616-6500 

Parc 55 San Francisco 
55 Cyril Magnin Street, San Francisco, CA 94102 
(415) 392-8000 

Park Central San Francisco 
50 Third Street, San Francisco, CA 94103 
(415) 974-6400 

Questions? Contact Us  

Gastrointestinal Cancers Symposium Customer Service Center
11208 Waples Mill Road, Suite 112, Fairfax, VA 22030
Phone: 888-788-1522 (within the U.S.) or +1-703-449-6418 (outside the U.S.)
Fax: 703-563-2715
Registration Email: | Hotel Reservations Email: