Syed Mazher is a Hematologist Oncology specialist and a Hospital Medicine doctor in Dallas, Texas. Dr. Mazher has been practicing medicine for over 39 years is highly rated in 2 conditions, according to our data. His top areas of expertise are Thrombophlebitis, Primitive Neuroectodermal Tumor (PNET), Posterior Fossa Tumor, Gastrostomy, and Bone Marrow Aspiration.