About Your Dentist

Walter Rostkowski, DDS

“I never forget that there’s a patient attached to that tooth!”

My Mission

To ensure each patient is able to enjoy a beautiful, healthy smile for a lifetime. To educate our patients on the importance of maintaining excellent oral health and how it impacts their overall systemic health and sense of wellbeing.  To help our patients understand the many ways effective preventative dental care can improve their quality of life. More than anything, I want my patients to feel confident that our entire dental team will treat them with the same care, empathy, and attention as we would treat members of our own families.


Doctorate of Dental Surgery
New York University College of Dentistry - New York City, NY 

Continuing Education & Professional Memberships

Dr. Rostkowski is an active member of the American Dental Association, Academy of General Dentistry, Suffolk County Dental Society and Peer Review, Seattle Study Club, Long Island Dental Forum, South Bay Study Group, Eastern Long Island Study Group and CEREC Study Group.

Life & Hobbies

Dr. Rostkowski is happily married to his wife, Elisa. Together, they have two daughters: Jennie, 17, and Anna, 13. When he isn’t practicing dentistry, Dr. Rostkowski enjoys family time, boating, fishing, hiking, cooking, traveling, baseball, music, tropical fish, gardening and archery.

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David Sahagun, DDS

Education & Continuing Education

Dr. David Sahagun is a friendly and dedicated general dentist based in Sayville, NY. Dr. Sahagun pursued his undergraduate career at the University of California- Irvine and graduated with a degree in Biological Science. He earned his Doctor of Dental Surgery from New York University. Dr. Sahagun completed his General Practice Residency at Jacobi Medical Center.

Dr. Sahagun is fully committed to his patients’ smiles, and that means keeping his mind and skills sharp! It is his firm belief that to be the best in the dental industry, you have to take a lifelong approach to learning and education. This enables him to serve his patients’ unique dental care needs quickly and expertly, providing them with a gentle and comfortable experience every time. No matter his patients’ concerns—emergency, restorative, or cosmetic- Dr. Sahagun ensures their trust is always in the best hands possible.

Professional Memberships

Dr. Sahagun is an active member of the American Dental Association (ADA) and the New York Dental Association.

Life & Hobbies

Away from the office, Dr. Sahagun is happily married. He’s a proud dog dad and enjoys cycling whenever he can.