Contact Us

Business Hours
Monday to Friday, 8:30 am to 5:00 pm, Eastern

National Blood Clot Alliance
8321 Old Courthouse Road, Suite 255
Vienna, VA  22182

Email: info@stoptheclot.org
Phone: 703.935.8845
Toll Free: 877.4.NO.CLOT

More Ways to Contact the National Blood Clot Alliance

Sign up for NBCA’s mailing list to receive news and updates concerning prevention, treatment, education and advocacy about blood clots and clotting disorders. Find out about NBCA-sponsored events and volunteer opportunities.

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Current News

MARCH E-NEWSLETTER | TOGETHER WE CAN

March is Blood Clot Awareness Month (BCAM), which is perhaps one of the most important times of the year for the…

NBCA Teams up with Pro Football Hall of Famer Harry Carson during Blood Clot Awareness Month

The National Blood Clot Alliance (NBCA) is excited to announce that it is teaming up with Pro Football Hall of…