Dr. Tahseen Shareef is a doctor of Internal Medicine with private practices in Loma Linda and Chino Hills. She is also Assistant Professor of Medicine at Loma Linda University and Medical Director of Western Healthcare.

She is also Director and President of New Dimensions Islamic School. Her passion for Dawa is what drives her to teach Islam. She has lectured on family issues for many years and her real interest is making sure the right ideas about Islam are conveyed.