Dr. Shannon O'mahar

Jacqueline Mullvain is a Hematologist and an Oncologist practicing medicine in Madison, Wisconsin. Dr. Mullvain is highly rated in 22 conditions, according to our data. Her clinical expertise encompasses Squamous Cell Lung Carcinoma, ALK-Positive Non-Small Cell Lung Cancer, Lung Adenocarcinoma, and Small Cell Lung Cancer (SCLC). Dr. Mullvain is board certified in American Board Of IM/Hematology , American Board Of IM/Medical Oncology , American Board Of Internal Medicine , Drug Enforcement Administration , and Wisconsin Medical Examining Board.

Julie Chang is a Hematologist and an Oncologist practicing medicine in Madison, Wisconsin. Dr. Chang is highly rated in 19 conditions, according to our data. Her clinical expertise encompasses Mantle Cell Lymphoma (MCL), Chronic Lymphocytic Leukemia (CLL), Chronic B-Cell Leukemia (CBCL), Richter Syndrome, and Bone Marrow Aspiration. Dr. Chang is board certified in American Board Of IM/Hematology , Drug Enforcement Administration , and Wisconsin Medical Examining Board.

Ryan Mattison, MD, is a UW Health hematologist and an associate professor in the Department of Medicine, Division of Hematology, Medical Oncology and Palliative Care at the University of Wisconsin School of Medicine and Public Health.Dr. Mattison cares for adult patients with blood and bone marrow disorders and cancers such as leukemia, lymphoma and myelodysplastic syndrome (blood cell disorders). He also provides care for patients with soft tissue and bone cancers (collectively known as sarcoma).Dr. Mattison uses the latest technologies and treatments, including bone marrow transplants and other cellular therapies, to treat cancer patients. What excites him the most are the incredible advancements in the field over the past 20 years. He has a special interest in drug development to improve patient care and outcomes, and he conducts research and clinical trials involving cancer therapies for patients with leukemia and other blood cancers.Dr. Mattison treats every patient as an individual and personalizes care based on their needs. He educates his patients on their illness and treatment options, empowering them to make the best decisions for their health and well-being.Outside of the clinic, Dr. Mattison enjoys camping, canoeing, cross-country skiing and spending time with his family.I want my patients to know that I’m here to help them, I’m here to listen to them and I won’t hold anything back from them. Dr. Mattison is highly rated in 21 conditions, according to our data. His clinical expertise encompasses Acute Myeloid Leukemia (AML), Acute Lymphoblastic Leukemia (ALL), Myelodysplastic Syndrome (MDS), Bone Marrow Aspiration, and Bone Marrow Transplant. Dr. Mattison is board certified in Hematology, Internal Medicine, and Medical Oncology.