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Chestnut Oak Dental
Smiling Woman/Child
Our Mission
The mission of Chestnut Oak Dental is to provide outstanding dental care and patient education in a warm and friendly environment while using the most current practices and technology. Our guiding principle is to serve our patients as we would wish to be served ourselves.
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“Chestnut Oak Dental fully complies with OSHA guidelines. We take your safety as seriously as we do our own. If you have any concerns or questions prior to a visit with us, please feel free to give us a call.”

Welcome to Chestnut Oak Dental

About Our Dental Practice

Chestnut Oak Dental is the inspiration of Dr. Mary Costigan and has its roots in the practice of Dr. Joseph Pirraglia, who has provided quality dentistry for Cold Spring since 1986. The primary focus of Chestnut Oak Dental is restorative and preventive dental care, with services including general, cosmetic, implant, and prosthodontic procedures.

We work in tandem with dental specialists in the area to coordinate optimal, customized treatment. In addition to Dr. Costigan, our team includes Gloria McVey, Bridget O'Brien, Jen MacEntee, Loretta Rizzo and Lori Greene, Lizzette Caro, and Judy Cummings.

Dentistry With Your Well-being in Mind

Chestnut Oak Dental focuses on providing the services that we do best: restorative and preventive dentistry. We fix damaged teeth and replace missing teeth with various solutions, including bonding (tooth-colored fillings), crowns, bridges, veneers, implants, and dentures. Our goal is to provide each patient with the treatment they need to restore optimal health, function, and esthetics.

In order to better serve you, our office utilizes some of the latest technology that dentistry has to offer, including digital radiographs, intraoral cameras, and digital scanning. These devices not only allow us to be better able to diagnose issues and deliver care, but they also provide much-improved methods to educate patients about their own individual needs.

All of our team members are very approachable. We are happy to answer any of your questions regarding our practice, dentistry, or your own treatment. We are grateful to serve this wonderful community, and we look forward to meeting you!


Give us a call to schedule your next appointment.
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If you have difficulty using our website, please email us or call us at (845) 265-3654
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Chestnut Oak Dental is following CDC guidelines to help prevent the spread of COVID-19 and to help keep our staff and patients safe.