Samantha Erosa, MD

Karen Bell is a Professor of Neurology at Columbia University Medical Center, in the Taub Institute for Research on Alzheimer's Disease and the Aging Brain and the GH Sergievsky Center. A Bronx native who graduated from New York University, and the University of Pennsylvania School of Medicine, she completed internship in internal medicine at Harlem Hospital Center and neurology residency at The Neurological Institute at Columbia University, College of Physicians and Surgeons. After completing a fellowship in Behavioral Neurology, she focused her clinical and research efforts to specialize on the evaluation and treatment of neurodegenerative cognitive disorders at the Taub Institute. As the Director of the Education Core of the Alzheimer's Disease Research Center at Columbia University, she has developed physician and community education programs. She is an active member of the American Academy of Neurology and the National Medical Association, serving on various subcommittees. She is an external advisor to National Medical Association's Project I.M.P.A.C.T. initiative. She also serves on multiple NINDS Data Safety Monitoring Boards and has been a member of the Columbia University Medical Center Institutional Review Board since 2003. She was appointed to the New York State Council on Graduate Medical Education (NYSCOGME) by Governor Paterson in 2009 and chairs the NYS COGME Empire Clinical Research Investigator Program Workgroup. She has participated as a mentor in the Harlem Children Society science program for many years.

Dr. Jay Leb is an associate professor of radiology at Columbia University Irving Medical Center, with subspecialty training in cardiothoracic imaging. He received his medical degree from New York University School of Medicine, and completed his residency at Jacobi Medical Center-Albert Einstein College of Medicine, where he served as chief resident. He received further training in cardiac and thoracic imaging during his fellowship at University of Maryland Medical Center, under the leadership of Dr. Charles White. Dr. Leb has a passion for teaching and has been awarded resident teacher of the year and fellow of the year during his training. Currently, he is the program director for the Cardiothoracic Imaging Fellowship at Columbia. He is a member of the Society of Thoracic Radiology, North American Society for Cardiovascular Imaging, and the Society for Cardiovascular Magnetic Resonance. Dr. Leb’s research interests include imaging of pulmonary hypertension, smoking-related lung disease, and cardiovascular disease with CT and MRI.

Carl L. Herndon, MD, is a board-certified orthopedic surgeon specializing in hip and knee reconstruction. He is skilled in the operative and nonoperative treatment of hip and knee injuries, including minimally invasive total joint arthroplasty (including anterior approach hip replacement), advanced techniques like robotically assisted total knee replacement, and unicompartmental (partial) knee replacement, as well as the latest approaches to managing periprosthetic joint infection and treatment of periprosthetic fracture. He also provides advanced care for hip, knee, and femur fractures and nonsurgical management for pain and arthritis. After receiving a B.A. in communications from Northwestern University, Dr. Herndon completed medical school at the University of Florida College of Medicine, where he was elected to the prestigious Alpha Omega Alpha Honor Medical Society. He completed his orthopedic surgery residency at NewYork-Presbyterian Hospital/Columbia University Irving Medical Center, where he served as administrative chief resident and won several awards for excellence. He completed his fellowship in adult reconstruction surgery at OrthoCarolina, one of the nation's leading independent orthopedic practices. Dr. Herndon is active in academic research and has published numerous articles in major academic journals including the Journal of Arthroplasty, where he serves as a member of the editorial board. His research interests include health policy and access to care, periprosthetic infection and fracture repair, and patient optimization. Dr. Herndon gives presentations at national meetings on a regular basis and has received multiple awards for research. He is an active member of the American Academy of Orthopaedic Surgeons and the American Association of Hip and Knee Surgeons. Dr. Herndon is passionate about educating and mentoring residents and fellows at Columbia and nationally. He has also volunteered his time abroad to advance medical and surgical care in places like El Salvador, Ecuador, and Honduras. He lives in Westchester County with his wife and two young children.