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

John Lasker Joins NBCA Board of Directors

The National Blood Clot Alliance is pleased to welcome John Lasker to its Board of Directors. John Lasker is vice…

MAY E-NEWSLETTER: PRIORITIZE YOUR HEALTH THIS MAY

Join the National Blood Clot Alliance as we celebrate women’s health this May. Read all of the important details, and…