Newswise — MONTCLAIR, New Jersey (October 7, 2020) – Mountainside Medical Center has announced that Lori Leslie, M.D., has been named Co-Medical Director of the hospital’s Cancer Program affiliated with John Theurer Cancer Center.  Dr. Leslie joins the Cancer Program leadership, serving alongside Donna McNamara, M.D., and John Conti, M.D.

Dr. Leslie received her Medical Degree at Columbia University College of Physicians and Surgeons and completed her residency at New York-Presbyterian/Columbia University Medical Center.  Following, she completed a fellowship at the University of Texas, MD Anderson Cancer Center where she served as chief fellow.  Board certified in hematology, medical oncology and internal medicine, Dr. Leslie specializes in non-Hodgkin lymphoma, Hodgkin lymphoma, and chronic lymphocytic leukemia. 

In addition to her appointment at Mountainside Medical Center, Dr. Leslie also serves as the Director of the indolent lymphoma and chronic lymphocytic leukemia research programs at John Theurer Cancer Center at Hackensack University Medical Center.  Her research and clinical practice are focused on non-Hodgkin lymphomas, chronic lymphocytic leukemia, and adoptive T-cell therapy/chimeric antigen receptor (CAR) T-cell therapy.  Her work has been published in many journals including Blood, Cancer, Leukemia & Lymphoma, the American Journal of Hematology, Expert Reviews of Hematology, Journal of Clinical Oncology, Haematologica, and the ASCO education manual.  In addition, Dr. Leslie serves as an assistant professor at Hackensack Meridian School of Medicine.


About the Cancer Program at Mountainside Medical Center

Commended by the Commission on Cancer since 1956, the goal at Mountainside Medical Center’s Cancer Program is to provide patients with exceptional, current and personalized care.  A multidisciplinary team, including board-certified medical, surgical and radiation oncologist; experienced oncology and infusion-certified nurses; pharmacists board certified in oncology and pharmacotherapy; and registered, certified radiology technicians and laboratory professionals provide care in a state-of-the art facility with a warm and reassuring environment.

In October 2019, Mountainside Medical Center established an affiliate agreement with John Theurer Cancer Center at Hackensack University Medical Center, the largest and most comprehensive cancer center in New Jersey, and consortium member of the Georgetown Lombardi Comprehensive Cancer Center, an NCI-Designated Cancer Center. This partnership ensures the same level of quality care patients have come to expect at John Theurer Cancer Center, and allows Montclair and the surrounding community access to clinical trials conducted at John Theurer Cancer Center.

Learn more about the Cancer Program at Mountainside Medical Center here


Mountainside Medical Center has been serving Montclair and its surrounding New Jersey communities since 1891. The hospital provides patients immediate access to innovative and effective treatment alternatives at specialized centers within the hospital that focus on imaging, women’s health, cancer care, surgery, obesity, stroke and chronic kidney disease. Mountainside Medical Center is designated as a Primary Stroke Center by the NJ State Department of Health and Senior Services and is one of only a few community hospitals licensed by the State to perform emergency cardiac angioplasty. To learn more about Mountainside Medical Center visit