Dr. Tamar grew up in Teaneck, New Jersey. She obtained her B.A. in Psychology from Barnard College, where she graduated Summa Cum Laude. She then attended Columbia University College of Dental Medicine, where she received her D.D.S. During dental school, she participated in a global outreach program to Jamaica, where she first realized her passion for pediatric dentistry. Dr. Tamar went on to complete a general practice residency at Montefiore Medical Center in Bronx, New York. She then continued her post-graduate training in pediatric dentistry at Maimonides Medical Center in Brooklyn, New York, where she served as chief resident during her second year.