Dr. Nicholas J. Nicastro Jr., DDSDr. Nicastro graduated with a degree in biology from Dowling College in 1994 before completing his education at Stony Brook University School of Dental Medicine in 1999, as well as an advanced education in general dentistry in 2000. He is extremely dedicated to continuing his education and completes over 100 hours of CE courses each year. Dr. Nicastro is a member of the following organizations:

  • American Dental Association
  • American Academy of Implant Dentistry
  • New York State Dental Association
  • Academy of General Dentistry
  • Suffolk County Dental Society
  • XI PSI PHI

Dr. Nicastro has been helping patients in the Long Island area achieve healthier smiles for over 17 years. His goal as a dentist is to keep providing his patients with high-quality treatment and the latest dental technology. He is married and has two children, and his hobbies include golf, weight training, and basketball.


Meet Our Team

When you visit N.J. Nicastro Dental PC, you are in the care of a dedicated, caring team that will gladly address all of your dental concerns. We act as your dental advocates, ensuring that you receive the best possible care and your needs are met. If you would like to learn more about the individuals who have served with our dentists in Port Jefferson Station, New York, for over 10 years, please read the following biographies. We look forward to meeting you, too!

Jean Lydell – Office ManagerJean has been with N.J. Nicastro Dental PC for over 25 years. She received a Bachelor of Arts from the University of Rhode Island and invests her skills and knowledge in keeping our practice running smoothly. She loves working in our caring, friendly office with our other team members, most of whom she has worked with for several years and feel like family. Jean is the mother of two girls and loves her role as a sports mom—especially when it comes to basketball, soccer, and track. She also enjoys horseback riding.


Jessica B. – Dental HygienistJessica has been with N.J. Nicastro Dental PC for over 12 years. She originally joined our team as a temp, but became a permanent member about two years ago. Though she only comes into the office on Saturdays, these work days feel like coming home. She is always excited to see her patients and coworkers and care for smiles in a friendly, family environment. Jessica has two boys, ages 12 and 10.



Michele – Registered Dental HygienistMichele has been part of our team of hygienists for over nine years. She received her Associate of Science degree from the State University of New York at Farmingdale, and uses her skills and knowledge to assess, plan, and execute treatments to the best of her ability. Michele admires how the dentists and team at N.J. Nicastro Dental PC work together to ensure that the needs of our patients always come first. Outside of work, Michele enjoys exercising, baking, and spending time with her spouse and two children.


Jessica N. – Dental AssistantJessica has been part of our team at N.J. Nicastro Dental PC for about six months. Her goal is to attend dental school, and she is making her dream a reality by currently working toward a bachelor’s degree in biology. Jessica works hard to make sure the rooms and equipment are clean and our dentists have everything they need for their appointments. She loves working with Dr. Nicastro, Dr. Felpo, and our team.


Linda – Dental AssistantLinda joined our team over 17 years ago. She received her certification in 1983 after a two-year dental assistant program at Suffolk Community College. Linda loves the patients at N.J. Nicastro Dental PC, and they love her.


Nicole – Receptionist/AssistantNicole has been working in our office for over 13 years. She earned her bachelor’s degree from St. Joseph’s College in Patchogue, NY, and her master’s degree from Stony Brook University. Nicole gets along really well with everyone and is honored to work with dentists who are honest and genuinely care for her patients. She always comes to work with a smile and a good attitude because she loves her job. She makes sure our patients to know how much we care and that we want to help them however we can. In her free time, Nicole enjoys playing soccer.