Richard Greenfield, D.D.S.

Dr. Greenfield graduated from SUNY at Stony Brook in 1970, Majoring in psychology and biology. He received his DDS degree with honors from SUNY at Buffalo School of Dental Medicine in 1974. He continued his postdoctoral education at Buffalo, completing a dual specialty program in prosthodontics and periodontics. Since then, he has published original research and lectures extensively on esthetics, periodontal prostheses, treatment planning in complete mouth rehabilitation, implant dentistry , as well as management of pain in the practice of dentistry. Dr. Greenfield has taught at the School of Dental Medicine at SUNY at Stony Brook since 1978 and has been recognized by the university for his teaching ability. Most recently, he has been promoted to the position of Clinical Associate Professor and has been elected to the National Dental Honor Society, Omicron Kappa Upsilon, for his teaching skills and devotion to his speciality. Among the many professional organizations he belongs to, he is a member of the American College of Prosthodontics, the Northeastern Gnathological Society, the Greater New York Academy of Prosthodontics, the Academy of Osseointegeration, and the American Dental Association.

His wife, Michelle, and two wonderful children, Austin and Haley complete his life


George M. Hribar, D.D.S.

Dr. Hribar graduated from Mount Saint Marys College and received his B.S. in 1972. He graduated from Columbia University School of Dentistry and Oral Surgery in 1976. He Completed his general practice residency at Booth Memorial Hospital in 1977. He earned his Speciality Certificate in Prosthodontics at NYU in 1979. Dr. Hribar is a Diplomate of the American Board of Prosthodontics since 1981. Dr. Hribar is a member of The American Dental Association, he is a Member and a Fellow of The American College of Prosthodontics, a Member and a Fellow of The Northeastern Gnathological Society, A Member and a Fellow of The Greater New York Academy of Prosthodontics, a Member of The Academy of Osseointegration. Dr. Hribar was formerly an Associate Clinical Professor in the Advanced Education in Prosthodontics at NYU School of Dentistry. He is a recipient of the Rowe- Wiberg Metal for Excellence in Prosthetic Dentistry, American College of Dentists Award for Academic Excellence, Award for Excellence in Operative Dentistry and an honorary dental society member of Omicron Kappa Upsilon. Dr. Hribar has lectured on Prosthodontics, Complete Dentures, Implant Dentistry, and Aesthetics.

Dr. Hribar is married to his wife Claire, a physician’s assistant. He has two wonderful children, Melissa and George. He is an avid golfer and enjoys cooking in his spare time.


 Robert S. Lewis, D.D.S.

Dr. Lewis received his DDS degree in 1968 from New York University College of Dentistry. Having been awarded a federally funded scholarship upon graduation, Dr. Lewis completed an Advanced Education Program in Prosthodontics 1970. Dr. Lewis has served on the teaching staff of North Shore Long Island Jewish Hospital for over twenty five years. He served as chief of prosthodontics at Parker Institute for Geriatric Care for over twenty years, and held an academic appointment at the School of Dental Medicine at SUNY. For over thirty years Dr. Lewis has served as a clinical research evaluator for Clinical Research Associates. Dr. Lewis has lectured on prosthodontics and restorative dentistry. Dr. Lewis belongs to and maintains active membership in the following professional organizations: Life Member of the American Dental Association, Nassau County Dental Association, American College of Prosthodontists, Northeastern Gnathological Society and the Academy of Osseointegration.

Dr. Lewis is married to Phoebe and they have two wonderful daughter and sons in law. Michelle and Eric Salzman, Deborah and Russell Kern. The loves of their lives are their four incredible granchildren. Spencer Kern, Adam Salzman, Alexandra Salzman and Andrew Kern. Dr. Lewis enjoys travel, golf, skiing, and spending time with his family.


Howard N. Livers, D.D.S.

Dr. Livers received his DDS degree from New York University College of Dentistry is 1987. He then completed a General Practice Residency at Bellevue Hospital Center. Dr. Livers earned his Certificate in Prosthodontics from NYU in 1990. He served as an Assistant Clinical Professor in Prosthodontics prior to entering private practice. Dr. Livers was recognized as an undergraduate dental student by being selected to the senior year honors program in fixed prosthodontics. He also earned the Bernard Rudner Award for Comprehensive Care. Dr. Livers achieved further distinction as a postgraduate student by contributing a chapter in Thomas Wilson’s Advances in Periodontics. Dr. Livers also actively participated in the NGS/GNYAP circuit courses. Upon completion of his post graduate training, Dr. Livers became a fellow in the Northeastern Gnathological Society. He is currently the Society’s Secretary and Program Co-Chair. He maintains membership in a number of dental scientific organizations including the Greater New York Academy of Prosthodontics, Academy of Osseointegration and the American Dental Association.

Dr. Livers has three fantastic children, Jonathan, Dylan, and Sam. He enjoys cycling, yoga, and skiing with his children.


Glenn Simonelli, D.D.S

Dr. Simonelli graduated from Xaverian High School in 1980. He attended Fordham University and received his B.A. in 1984. Dr. Simonelli attended New York College of Dentistry and graduated in 1988. He completed a general practice residency at Brookdale Hospital Medical Center in East New York. He earned his speciality certificate in Prosthodontics and Occlusion from NYU in 1991. Dr. Simonelli has been actively involved in the Prosthodontic Community Since his initiation in the fixed honors program at NYU Dental School. The organized dental groups which Dr. Simonelli belongs to include the following: The American Dental Association, The American College of Prosthodontics, The Northeastern Gnathological Society, and The Greater New York Academy of Prosthodontics. Dr. Simonelli has served as the president of the Glen Cove Dental Study Group. He is the recipient of the Arthur N. Kaplan Award for Excellence in Prosthodontics and The Quintessence Award for Academic Achievements. He continues to lecture locally in Prosthodontics, Aesthetics, and Implant Dentistry.

Dr. Simonelli is married to Dr. Maria Pistocchi and has two lovely daughters, Alissa and Lauren. He enjoys golf, tennis, and exercising.