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

NBCA Addresses Health Disparities Through its First-Ever B.L.A.C.K Church Bus Tour

The National Blood Clot Alliance (NBCA) proudly announces the launch of its inaugural B.L.A.C.K. Church Bus Tour (Black Lives Advocating…

NBCA’s 2024 Impact Highlights

As we reflect on 2024, we are proud to share the incredible strides we’ve made together in raising awareness, advancing…