Mark B. Geyer, MD - MSK Leukemia Specialist & Cellular Therapist

I am a board-certified medical oncologist specializing in the care of patients with lung cancer. I serve as MSK's Cancer Center Deputy Director. I am also co-chair of the Eastern Cooperative Oncology Group Thoracic Committee, and a member of the National Cancer Institute Thoracic Malignancies Steering Committee.

I am a general pulmonologist. I see many outpatients with lung problems ranging from routine to esoteric conditions — not just those related to cancer. These medical issues include asthma, chronic obstructive pulmonary disease, interstitial lung disease, sarcoidosis, and many others.

I am an oncologist who specializes in treating people with multiple myeloma. The increase in new treatments in the past several years makes this a very exciting time for me and other specialists who care for people with this disease. Our team offers patients the highest-quality care as well as the newest treatments through clinical trials. These research studies will improve care and increase the chance of a good outcome for all of our patients.