About Us

Dennis R. Rossi, M.D.
Dr. Rossi, the President of LIRA, is considered a pioneer of diagnostic imaging services in the New York area. He founded Long Island NMR in 1984, one of the first outpatient MRI centers in the United States. Dr. Rossi has co-authored many professional papers in MRI and installed and operated many imaging facilities over the years. His diagnostic skills and highly specialized administrative expertise are nationally recognized. Dr. Rossi received his medical degree from State University of New York, Downstate Medical Center in 1968, completed his training in radiology at Montefiore Hospital Center in 1972, and then served in the U.S. Navy as Director of the Department of Radiology at St. Albans Naval Hospital. Dr. Rossi heads the eight-member group of board certified radiologists and is Director of the Department of Radiology at Long Beach Medical Center and St. John's Episcopal Hospital in New York. [to top]

Howard J. Gelber, M.D.
Dr. Gelber is the co-medical director of Long Island Radiology Associates at Hewlett. He is a board-certified radiologist and has been in practice since 1986. Dr. Gelber received his medical degree from State University of New York, Downstate Medical Center in 1979. After two years of medical residency he entered the diagnostic radiology residency at Downstate Medical Center, which he completed in 1985. Dr. Gelber also completed a fellowship in Interventional Radiology, Angiography, and Computerized Tomography at Downstate, and a visiting fellowship in Magnetic Resonance Imaging. [to top]

James R. McCleavey, M.D.
Dr. McCleavey is a board-certified radiologist and has been with the practice since 1984. He has extensive experience in Magnetic Resonance Imaging, digital and conventional Angiography, head and body CT, Nuclear Cardiology as well as routine Nuclear Medicine and all interventional procedures. Dr. McCleavey received a MBA/MPH degree from Columbia University in the Joint Program in Health Administration in 1976 and his medical degree from Downstate Medical College in 1980. Dr. McCleavey completed his residency in diagnostic radiology at Nassau County Medical Center in 1984. [to top]

Glenn E. Schwartz, M.D.
Dr. Schwartz is a board certified radiologist and has been with the practice since 2002. Prior to this he was Director of Radiology for Flushing Hospital Medical Center for the last 5 years of his 10-year tenure there, and Assistant Professor of Radiology for SUNY Downstate Medical Center for 3 years. Dr. Schwartz earned his medical degree at New York University School of Medicine in 1979, completed his internship in 1980 and his residency in 1983 at Downstate Kings County Medical Center. [to top]

Daniel E. Beyda, M.D.
Dr. D. Beyda is the medical director of Elmont Open MRI and Central Diagnostic Imaging. Dr. Beyda is a board certified radiologist that joined the practice in 2003. He earned his medical degree and an MA in Medical Sciences at Boston University School of Medicine, completed his internship in 1999 at Malden Hospital, and his radiology residency at Long Island Jewish Medical Center in 2003. [to top]

Victoria L. Beyda, M.D.
Dr. V. Beyda is the co-medical director of Long Island Radiology Associates at Hewlett. Dr. Beyda is board certified radiologist that joined the practice in 2004. She earned her MPH and medical degree at Boston University, completed her internship at Winthrop University Hospital in 2000, and her radiology residency at Long Island Jewish Medical Center in 2004. [to top]

Matthew A. Diament, M.D.
Dr. Diament is a board certified radiologist that joined the practice in 2006. He earned his medical degree at SUNY Downstate in 2001, completed his internship and radiology residency at Long Island Jewish Medical Center in 2006. Among other various aspects of radiology, Dr. Diament specializes in body imaging. [to top]

Myrna K. Nussbaum, M.D.
Dr. Nussbaum is a board certified radiologist that joined the practice in 1997. Prior to this she worked in private practices for 10 years. Dr. Nussbaum received her medical degree from New York Medical College, completed her internship at Overlook Hospital in New Jersey, and her residency at Montefiore Medical Center. [to top]