Dr. Walter Kostrzewski

Meet the experienced and friendly staff who make Stony Hill Dental Care the leading provider of oral hygiene and personalized dental services in Bethel.

All of the staff at Stony Hill Dental Care make it their priority to treat you like family. Whether you need a simple cleaning or extensive dentistry we will be with you the whole way. We know that most patients are not the biggest fans of the dentist so we strive to make each visit as comfortable as possible.

Dr. Walter Kostrzewski, trusted Bethel dentist with over 40 years of experience at Stony Hill Dental Care
Dr. Rory J. Perimenis, NYU College of Dentistry graduate and associate dentist at Stony Hill Dental Care in Bethel, CT

Dr. Rory J. Perimenis

Providing the most advanced dental care in a comfortable and pleasant atmosphere are the priorities of Dr. Rory J. Perimenis, DDS.
Dr. RJ is a fervent believer in conservative dentistry and works closely with patients to create a life-long dental care plan. Dr. RJ is diligent in his pursuit of providing leading dental care procedures while utilizing innovative technology, supplies, and equipment.
Dr. RJ graduated Magna Cum Laude with a degree in Biology from Quinnipiac University in 2013. He followed in his father’s footsteps and earned his doctorate degree from New York University College of Dentistry in 2017.
He is committed to his health and fitness, and loves sports (his favorite teams are the NY Yankees and NY Jets). He enjoys time spent with his wife, and their French Bulldog, Banks.

Mercedes Serrato RDH

Mercedes has worked with Stony Hill Dental Care for over 20 years! She is a meticulous hygienist who never fails to make each patient leave with a great big smile after their dental cleanings. Mercedes is the very proud mother to one grown son. In her free time she enjoys reading cooking spending time with her family and SHOPPING LOTS of SHOPPING.

Mercedes Serrato, RDH, experienced dental hygienist providing thorough and friendly cleanings at Stony Hill Dental Care in Bethel, Connecticut for over 20 years
Diomary Abreu, CDA, trusted dental assistant at Stony Hill Dental Care in Bethel, CT for over 15 years

Diomary Abreu CDA

​Diomary has been with Stony Hill Dental Care for over 15 years. She has a unique calmness about her that can put even the most anxious patients at ease. Diomary is the mother of two beautiful girls and one feisty four-legged Chihuahua! In her free time she enjoys long walks, camping, and spending time with her family and friends.

Jennifer Trombetta

Jennifer Trombetta at Stony Hill Dental Care in Bethel, Connecticut