Dr. Donna Walker

David Harrison is a Hematologist Oncology specialist and a Hematologist in San Luis Obispo, California. Dr. Harrison is rated as an Advanced provider by MediFind in the treatment of Classical Hodgkin Lymphoma. His top areas of expertise are Paget Disease of the Breast, Chronic B-Cell Leukemia (CBCL), Richter Syndrome, and Chronic Lymphocytic Leukemia (CLL).

Melani Shaum is a Hematologist Oncology specialist and a Hematologist in Lompoc, California. Dr. Shaum is rated as an Advanced provider by MediFind in the treatment of Classical Hodgkin Lymphoma. Her top areas of expertise are Breast Cancer, Paget Disease of the Breast, Chronic B-Cell Leukemia (CBCL), and Richter Syndrome.

Dr. Wei Bai grew up in Beijing, China. In 1995, she graduated from Peking University Health Science Center (previously known as Beijing Medical University) with distinction. She then pursued graduate study in the United States. Upon receiving her master’s degree in Molecular Medicine from the University of Massachusetts Medical School in 1998, Dr. Bai joined a leading biotech company, Genentech, Inc., in South San Francisco to pursue her passion in translational research. She participated in research and development of several cancer drugs, including trastuzumab (Herceptin), bevacizumab (Avastin), and erlotinib (Tarceva), among others in the company pipeline.Excited to bring bench research to bedside practice, Dr. Bai ultimately transitioned to direct patient care in 2005. She completed her Internal Medicine residency at NewYork-Presbyterian Lower Manhattan Hospital in 2008, which included several months of clinical rotation at Memorial loan Kettering Cancer Center (MSKCC). Dr. Bai’s experience at MSKCC further enforced her commitment to oncology research and practice. She proceeded to a combined Hematology and Medical Oncology fellowship at Lombardi Comprehensive Cancer Center of Georgetown University in Washington DC from 2008 to 2011.After her fellowship, Dr. Bai practiced hematology and medical oncology in the Samaritan Health System in Oregon. During her nine years with Samaritan, she treated patients with a wide range of cancer types and blood diseases. She served her patients with PRIDE — passion, respect, integrity, dedication and excellence. Dr. Bai was also active in clinical trials and resident education.Since 2020, Dr. Bai joined the team at Mission Hope Cancer Center. Compassionate and calm, she is devoted to each individual patient’s needs and goals. Dr. Bai is rated as an Advanced provider by MediFind in the treatment of Classical Hodgkin Lymphoma. Her top areas of expertise are Deep Vein Thrombosis, Pleuropulmonary Blastoma, Familial Colorectal Cancer, and Hemochromatosis.