Eliza joined HealthTree in March 2026 as the Leukemia Patient Health Education Manager. Prior to joining HealthTree, she completed a Master’s Degree in Public Health from Brigham Young University and worked with a variety of underserved populations in government and healthcare settings. When not in office, Eliza enjoys reading, writing and learning new things about the world.

Marni Amsellem, Ph.D. is a licensed clinical health psychologist based in metropolitan NYC. Her areas of specialty include health-related adjustment and supporting individuals and caregivers affected by cancer and other medical diagnoses and/ or are looking to build their coping skills and resilience. Dr. Amsellem completed her undergraduate degree at Cornell University and doctorate work in clinical psychology at Washington University in St. Louis.  In addition to her full-time job in an integrated primary care practice, Dr. Amsellem maintains a part-time private practice and consultancy.  Furthermore, she writes about psychology-focused topics for a number of national publications and has published a cancer-focused journal in which all proceeds go to cancer support organizations, Reflections: A Journal Companion for the Cancer Journey. More information is available on her website www.smarthealthpsych.com.