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Contact Us

Contact Us

ASH standard customer service hours are Monday through Friday, 9:00 a.m. – 5:00 p.m. Eastern time. During these hours, contact an agent using any of the following methods:

  • Phone: 866-828-1231(U.S. Toll Free) or 001-202-776-0544 (international callers)
  • Email: customerservice@hematology.org
  • Complete the online form below

2022 Highlights of ASH® Extended Customer Service Hours

The 2022 Highlights of ASH® virtual series will take place March 16 – April 9. To further assist attendees of these programs, ASH is pleased to offer extended customer service hours. The following times are in Eastern time, and follow the designated program schedules. Only email will be monitored during these extended hours. After April 9, standard hours apply.

Highlights of ASH® in North America

Date Customer Service Hours
Thursday, March 17 Extended through 6:30 p.m.
Friday, March 18 Extended through 6:30 p.m.
Saturday, March 19 9:00 a.m. – 4:30 p.m.

Highlights of ASH® International

Date Customer Service Hours
Saturday, March 16 9:00 a.m. – 10:30 a.m.
Saturday, April 2 8:00 a.m. – 12:00 p.m.
Friday, April 8 – Saturday, April 9 10:00 p.m. – 12:30 a.m.

Contact Customer Service for 2022 Highlights of ASH®