Dr. CottoneJohn William Cottone, DMD

After dental school, Dr. Cottone worked for his father and brother in their dental laboratory before joining a large cosmetic practice in Manhattan. Later, Dr. Cottone purchased his current dental practice in Syosset and was eventually joined by Dr. Carol Anne Schmitz. Ultimately, they would combine practices with Dr. Robert F. Gudwin to create Berry Hill Dentistry, PC. Dr. Cottone is a Northeast Regional Board Certified dentist licensed by the New York State Department of Education, and has received an award for America’s Top Dentist from the Consumer’s Research Counsel of America. Dr. Cottone stays current with the latest in dental technology and techniques by completing numerous continuing education courses on implant prosthodontics and restoration, endodontics, advanced esthetic Cerec® training, and other specialized training.


  • American Dental Association
  • Dental Society of the State of New York
  • Nassau County Dental Society
  • Who’s Who Society


  • B.S., Fairleigh Dickinson University
  • D.M.D., Fairleigh Dickinson University

Dr. Cottone and Dr. Schmitz are married, and have two children. Their family enjoys sports, including golf, skiing and hockey and other family hobbies.