Dalton joined HealthTree in 2024 as the CLL and MF Education Manager. He is passionate about helping patients gain a better understanding of their health and treatment and sees it as a way to help empower individuals and their families who are affected by these diseases. Prior to joining HealthTree Dalton earned a Master’s Degree in Oncological Sciences while studying various different blood cancers. When not interacting with patients he is an avid snowboarder and hiker.

Dr. Leiva is an Advanced Heart Failure and Transplant Fellow at the University of Chicago. Their clinical research interests include cardio-oncology, cardiac critical care, interventional cardiology, thrombosis, and bridging the gap between hematology and cardiology. They are particularly interested in cardiovascular and thrombotic outcomes and risk factors in patients with hematologic malignancies, particularly myeloproliferative neoplasms.