Healthcare Professionals

The Histiocytosis Association understands that patients and families fighting histiocytic disorders have complex needs. The Association is here to inform, empower and connect the members of this rare community – sharing knowledge and resources that will make the journey a little easier.

Learn About Histiocytic Disorders

Learn about the different disorders, explore additional outside resources and helpful “What Do I Do Now?” sections

Subscribe to our Emails

If you haven't already, we invite you to subscribe to our email lists so you'll get the most up-to-date information to help you support Histio patients and their families.

Find a Physician

The online Histio Physician Finder lets you search for doctors in your area that treat histiocytic disorders

Search the Resource Directory

Search for helpful patient and family resources in your area and around the world, such as financial aid, medical transportation, insurance assistance, international partner organizations, and more.

View Open Clinical Trials

Find and learn about clinical trials available for histiocytosis patients

Contact Us

We are here for you! If you would like to speak to someone and get help navigating your diagnosis, please reach out to us so we can connect you with resources to help you or be a caring ear to listen. Connect with through a call, text, email, or social media.

Subscribe to our Emails

If you haven't already, we invite you to subscribe to our email lists so you'll get the most up-to-date information to help you support Histio patients and their families.

Find a Physician

The online Histio Physician Finder lets you search for doctors in your area that treat histiocytic disorders

Join our Private Facebook Discussion Group

Find and connect with others in the Histio Community.

Watch Educational Videos

Watch webinars and educational videos to learn about the lastest in Histio knowledge and research.

Search the Resource Directory

Search for helpful patient and family resources in your area and around the world, such as financial aid, medical transportation, insurance assistance, international partner organizations, and more.

View Open Clinical Trials

Find and learn about clinical trials available for histiocytosis patients.

Learn About Funding Opportunities

Each year, we provide grant funding up to $50,000 USD for a select number of exceptional research projects focused on histiocytic disorders. Applications typically open in May.

Review Past Grants Awarded

Since 1992, the Histioyctosis Association has been provided research funding to promising projects around the world. Learn more about the projects that have received funding in the past.

Subscribe to our Emails

If you haven't already, we invite you to subscribe to our email lists so you'll get the most up-to-date information to help you support Histio patients and their families.

Learn about the Histiocyte Society

Get to know about our partnership with the professional medical association of more than 200 leading histio physicians and scientists from around the world and how you can get involved with the Histiocyte Society.

Subscribe to our Emails

If you haven't already, we invite you to subscribe to our email lists so you'll get the most up-to-date information to help you support Histio patients and their families.

Connect With Other Healthcare Professionals

Submit your information for inclusion in our Physician Finder so patients can find your services. Search the directory to connect with colleagues and healthcare professionals at other institutions.

Watch Histio Webinars & Education Videos

Learn more about Histio and the latest updates from experts around the world.

Physicians Resource Center

Explore a brief start of all the resources we have to offer for Physicians; all Healthcare Professionals may find this beneficial. Bookmark this page to return in the future.

Search the Broader Resource Directory

Search for additional resources to help patients and families navigate a histiocytic disorder diagnosis, including financial/housing assistance, international partner organizations, medical transportation, and more.