Dr. Sigurdur R. Petursson

John K. Waas, DO, is a medical oncologist at UPMC Hillman Cancer Center who practices at Arnold Palmer Medical Oncology at Norwin. Board-certified in medical oncology, Dr. Waas received his medical degree from Philadelphia College of Osteopathic Medicine in Philadelphia. He completed his residency at Lehigh Valley Hospital Center in Allentown, Pa. Dr. Waas is rated as a Distinguished provider by MediFind in the treatment of Schnitzler Syndrome. His top areas of expertise are Protein C Deficiency, Protein S Deficiency, Congenital Antithrombin 3 Deficiency, and Hereditary Resistance to Anti-Vitamin K.

William Ferri is a Hematologist Oncology specialist and an Oncologist in Beaver, Pennsylvania. Dr. Ferri is rated as an Advanced provider by MediFind in the treatment of Schnitzler Syndrome. His top areas of expertise are Paget Disease of the Breast, Pleuropulmonary Blastoma, Lung Cancer, Anemia, and Bone Marrow Aspiration.

William E. Spielvogle, MD, is a medical oncologist and hematologist at UPMC Hillman Cancer Center at UPMC Horizon. He specializes in all areas of general oncology, and has a clinical interest in breast cancer. Dr. Spielvogle is rated as a Distinguished provider by MediFind in the treatment of Schnitzler Syndrome. His top areas of expertise are Paget Disease of the Breast, Angiosarcoma, Lynch Syndrome, and Colorectal Cancer.