Audrey joined the HealthTree Foundation as the Myeloma Community Program Director in 2020. While not knowing much about myeloma at the start, she has since worked hard to educate herself, empathize and learn from others' experiences. She loves this job. Audrey is passionate about serving others, loves learning, and enjoys a nice mug of hot chocolate no matter the weather.

Natalie Callander, MD joined the section of Hematology/Bone Marrow Transplant at the University of Wisconsin in October 2004 as an Associate Professor in the Department of Medicine. Dr. Callander graduated from Tufts University School of Medicine in Boston, MA, has completed residency at Bellevue Hospital in New York, as well as a Hematology/Oncology fellowship at the University of California-San Diego. Her board certifications include hematology, internal medicine, and medical oncology.

Dr. Andrew Cowan is a hematologist-oncologist who specializes in treating patients with multiple myeloma and other blood disorders. He leads clinical trials of new treatments for these diseases, including the use of engineered immune cells, combination strategies and genomics data. An expert in trial design, Dr. Cowan evaluates research proposals as a member of Fred Hutchinson Cancer Research Center's Scientific Review Committee.