John R. Keene, DMD


Dr. Keene was raised in Williston Park, Long Island where he graduated from Herricks High School in 1994. He joined LICOMS in 2007. His practice encompasses all areas of oral and maxillofacial surgery, including implant, orthognathic, reconstructive, CT guided, and facial trauma surgery. His training at Maria Fareri Children’s Hospital at Westchester Medical Center has provided him with extensive training in pediatric surgery and pediatric anesthesia. He has authored and published several scientific and clinical articles in the Journal of Oral and Maxillofacial Surgery and he is a faculty member at Hofstra Medical School. Dr. Keene is a certified instructor in Advanced Cardiac Life Support and Basic Life Support and he teaches at multiple residency training programs in Nassau County. He is also a member of the Head and Neck Cancer Surgery Team at Long Island Jewish Medical Center. Dr. Keene enjoys ice hockey, baseball, physical fitness, and spending time with his family. He lives in Merrick with his wife and four children.


  • Bachelor of Arts Degree – State University of New York at Geneseo 1998
  • Doctor of Dental Medicine (with Honors) – Nova Southeastern University 2002
  • Oral and Maxillofacial Surgery Training – New York Medical College /Westchester Medical Center 2006

Board Certifications

  • Diplomate, American Dental Society of Anesthesiology – 2005
  • Diplomate, American Board of Oral & Maxillofacial Surgery – 2008

Hospital Affiliations

  • Long Island Jewish Medical Center
  • North Shore University Hospital at Manhasset
  • North Shore University Hospital at Syosset
  • Westchester Medical Center
  • Winthrop University Hospital
  • South Nassau Communities Hospital