Dr. Hasan is a scientist neurosurgeon with extensive experience in management of cerebrovascular diseases and skull base tumors. He is a fellowship - dual trained open cerebrovascular and endovascular with a background of treating over 2500 brain aneurysms using very innovative techniques including awake surgery.

He is an international authority in cerebrovascular research with over 270 peer-reviewed PubMed publications, multiple NIH grants, and member of several editorial boards of high impact medical and surgical journals.