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.

You can also connect with NBCA on Facebook, Twitter, Instagram and Pinterest.

Current News

The CLUES Blood Clot Study

The CLUES Blood Clot Study A Critical Look at Understanding the Emotional Suffering of Blood Clot Survivors Calling all blood…

AUGUST E-NEWSLETTER: Get the Latest News & Information

Join the National Blood Clot Alliance for the latest news, information, and ways for you to get involved with our…