Dr. Katzen graduated from Georgetown University with a BS in Biology and earned his medical degree from The George Washington University School of Medicine and Health Sciences. He continued his medical internship and residency in Internal Medicine at GW, as well as completed a fellowship in Hematology/Oncology.

Dr. Katzen is an oncologist-hematologist and has served as the Chief of Oncology at both Greater Southeast Community and Southern Maryland Hospital ,as well as the president of Oncology-Hematology Associates in Maryland.

He currently serves as a Clinical Professor at George Washington Hospital. He was an active member of the George Washington University School of Medicine admissions committee prior to joining MedSchoolCoach. He currently serves as a consultant to pharmaceutical companies and other health related companies.

He has been recognized as a Top Doctor by US News and World Report and Washingtonian Magazine. He is a member of the American Society of Clinical Oncology, the American Society of Hematology and the Southern Association of Oncology. He joins MedSchoolCoach enthusiastic to help premedical students follow their dreams of becoming physicians.