In addition to her medical degree, Dr. Kazhdan also holds a doctorate degree in Hematology from Leningrad's Institute of Hematology in St. Petersburg, Russia.  Dr. Kazdan's experience includes Physician/Scientist in the Dept. of Internal Medicine and Central Scientific Laboratory and in the Dept. of Blood Transfusion and Laboratory of Immunology and Serology at 1st Pavlov's Leningrad Medical Institute, and Associate Researcher and Assistant Professor in Biochemistry at the School of Dental Medicine at the University of Pennsylvania.  She completed a Fellowship in Medical Oncology at The University of Texas Health Science Center in San Antonio, TX while also serving as Assistant Professor in Internal Medicine and Medical Oncology.

Dr. Kazdan has published extensively in peer-reviewed medical journals related to her basic science oncology research while on the faculty of the University of Texas Health Science Center in San Antonio, the University of Pennsylvania and 1st Pavlov's Leningrad Medical Institute.

Prior to joining Cancer Care Centers of South Texas, Dr. Kazhdan was in private practice specializing in Medical Oncology and Hematology.