Maren T. Walta, LCSW

Dr. Zheng Z. Topp is a board-certified hematologist-oncologist in Portland, OR. She has a special focus in the care of patients with breast cancer. Dr. Topp is dedicated to knowing her patients and their treatment goals and concerns. She hopes to empower her patients to make confident, informed care decisions in the face of challenging times. At Providence Cancer Institute, Dr. Topp joins an expert team of specialists with access to the newest innovations and clinical trials, in the goal to end cancer and provide the best possible care.

Nora Lersch is a nurse practitioner specializing in gynecologic oncology and breast health in Portland, OR. Nora strives to bring compassion and empathy to her interactions with patients. She has a special interest in helping women who may be struggling with sexual side effects from their cancer treatment.

Dr. Natasha Edwin is a hematologist and medical oncologist who specializes in the treatment of patients with blood cancer and blood disorders in Portland, OR. Dr. Edwin is passionate and zealous about putting her patients at ease by personalizing treatments, aligning them with their own values, and empowering them with the knowledge they need to make informed decisions about their care.