MEETINGS & EDUCATION
COS is sold out of BOTH Corporate Memberships and Exhibits for 2026, and cannot accept additional industry participation in our events beyond those companies.
COS 2026 Dinner at the Denver Best of ASCO
Friday, June 26, 2026
5:30PM-8:30PM MT
Westminster, CO
Join oncology professionals from across the region for an inspiring evening of learning, networking, and celebration at the highly anticipated COS 2026 Dinner at the Denver Best of ASCO. Hosted at Denver Marriott Westminster, this exclusive event blends culinary excellence with thought-provoking clinical discussion and professional connection.
Provider Registration - inclusive of licensed physicians and allied health professionals including but not limited to registered nurses, nurse practitioners, clinical nurse specialists, pharmacists, physician assistants, administrators, social workers, and office managers in an oncology practice or university; Fellows; Retirees. Provider registrants must not be employed by an Industry company (see below).
For assistance with provider registration, please email registration@oss-oncology.org.
Exhibitor Registration – open only to confirmed exhibitors. A registration link will be sent via email approximately 7-8 weeks prior to the event. Any Industry attendees that register as a Provider will be voided. Please email corporaterelations@oss-oncology.org with any questions.
Venue & Travel Information
Denver Marriott Westminster
7000 Church Ranch Blvd
Westminster, CO 80021
Meeting Room: Marriott Ballroom (Salon D)
Parking:
Complimentary parking.
*Times subject to change
Partner Events
COS is proud to partner with organizations that share the mission of educating the oncology community. The events listed below are listed for your information, and any questions about the events below should be directed towards the organizers.
Total Health Best of ASCO® Denver Conference
June 27-28, 2026
Location: Denver Marriott Westminster, 7000 Church Ranch Blvd, Denver, CO
Total Health is pleased to bring you its officially licensed Best of ASCO® Denver Conference. This meeting showcases practice-changing abstracts from highly rated presentations at the 2026 ASCO® Annual Meeting, allowing attendees to engage with the latest research and strategies in oncology education. This accredited meeting will be hosted as an in-person conference only with on-demand access for registered attendees.
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