Dr. Sigurdur R. Petursson

Margaret Ragni is a Hematologist in Pittsburgh, Pennsylvania. Dr. Ragni is rated as a Distinguished provider by MediFind in the treatment of Von Willebrand Disease (VWD). Her top areas of expertise are Hemophilia A, Blood Clots, Von Willebrand Disease (VWD), Hemophilia B, and Hip Replacement.

Craig Seaman is a Hematologist in Pittsburgh, Pennsylvania. Dr. Seaman is rated as a Distinguished provider by MediFind in the treatment of Von Willebrand Disease (VWD). His top areas of expertise are Von Willebrand Disease (VWD), Hemophilia A, Blood Clots, and Hemophilic Arthropathy. Dr. Seaman is currently accepting new patients.

Nicoletta Machin, DO, specializes in benign hematology and is certified in internal medicine by the American Board of Internal Medicine. She has a special clinical and research interest in inherited bleeding disorders and women's health related to hematologic issues including those impacting pregnancy. She completed her medical degree at the University of New England College of Osteopathic Medicine, followed by a residency and fellowship at the University of Pittsburgh School of Medicine. She practices at the University of Pittsburgh Physicians, Department of Hematology-Oncology, and is affiliated with UPMC Magee-Womens Hospital, UPMC Shadyside, and UPMC Presbyterian. Dr. Machin is rated as a Distinguished provider by MediFind in the treatment of Von Willebrand Disease (VWD). Her top areas of expertise are Hemophilia A, Von Willebrand Disease (VWD), Hemophilia B, Hemophilic Arthropathy, and Hormone Replacement Therapy (HRT).