Contact Us

National Blood Clot Alliance
PO Box 825687
Philadelphia, PA 19182-5687

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

FDA PLACES NEW RESTRICTIONS ON JOHNSON & JOHNSON’S COVID-19 VACCINE

May 6, 2022 The US Food and Drug Administration announced in a recent statement that they decided to limit the…

May is Women’s Health Month

May is Women’s Health Month. The National Blood Clot Alliance is raising awareness about the unique risk factors that women…