Her 12 years of inpatient experience included work with pediatric, renal, bone marrow transplant and cancer patients. Since 2002, she has combined work at the NCI accredited University of Colorado Cancer Center with her private practice. She has been a board member of the Oncology Nutrition Practice Group, worked on the original exam writing group that developed the certification for a Board Certified Specialist in Oncology (CSO), and now serves on the Board of Trustees for the Association of Community Cancer Centers. Colleen attends conferences across the country each year to stay current with the latest nutritional research and therapies for cancer.