Our Staff

Dentists in Ossining, NY

Dr. Sullivan and Dr. Yin maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in dentistry.

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Dr. James Sullivan

Wife: Laura Children: McKenzie, Sydney, Tyler

Education:

• SUNY Buffalo BA biology 1983
• New York University College of Dentistry. DDS 1987
• Penninsula Hospital Dental residency 1987-1988
• Yearly meetings and courses with the American Academy of Cosmetic Dentistry

Societies:

• American Dental Association
• America Academy of cosmetic dentistry
• Ninth district dental society

Special Emphasis:

• Cosmetic dentistry
• Family dentistry
• Full mouth reconstruction
• All ceramic crown and bridge work
• Non surgical periodontal treatment
• Implant dentistry
• Computer generated ( Procera and Lava ) crowns
• Porcelain veneers
• Composite bonding
• Porcelain inlays and onlays
• Sustaining member of the American Academy of Cosmetic Dentistry.

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Dr. Tiphannie Yin

Dr. Tiphannie Yin was born and raised in Queens, New York. She attended SUNY Stony Brook for her undergraduate education, earning a Bachelor’s degree in Biochemistry. Afterwards, she left for Boston to complete her doctoral training, receiving her Doctor of Dental Medicine degree from Boston University Goldman School of Dental Medicine, and graduated Magna Cum Laude. She then returned back to her home state of New York to complete a one-year general practice residency program at SUNY Stony Brook, where she further developed her skills and training in all aspects of general dentistry, including crowns and bridges, root canals, implant restorations, and extractions.

Dr. Yin strives to provide comprehensive care to all of her patients, treating everyone with a gentle and compassionate manner. She stays up to date with continuing education, aiming to keep learning and improving upon her techniques and procedures. She is currently a member of the American Dental Association, and Academy of General Dentistry. She also speaks fluent Cantonese Chinese.

During her free time, Dr. Yin enjoys reading, baking, traveling, and spending time with family and friends. Otherwise, she can be found watching Jeopardy and Wheel of Fortune, preparing for the day that she will eventually compete on her beloved game shows.

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Agnieszka Beckford, RDH, MPH, MT

With over eighteen years of service on our team, Agnieszka exemplifies commitment and expertise in the field of dentistry. Her journey began in Poland, where she initially practiced dentistry before pursuing further education in the United States. She earned her dental hygiene degree from Hostos Community College in the Bronx and later enhanced her skills with a Master’s in Public Health from Benedictine University in Illinois. Agnieszka’s passion for her craft deepened when her daughter faced orthodontic challenges due to tongue thrust. This personal experience led her to explore the transformative potential of myofunctional therapy,igniting a fascination that propelled her to the Academy of Orofacial Myofunctional Therapy. In 2021, she proudly achieved certification, adding another milestone to her impressive career.

Dedicated to guiding patients of all ages toward optimal oral health, Agnieszka employs a holistic approach that is both refreshing and effective. She believes in empowering her patients, helping them understand the importance of oral health, preventing potential issues, and promoting overall well-being.

When the day's work is done, Agnieszka treasures time spent with her family. Whether camping under the stars, hiking scenic trails, paddling serene waters, or enjoying cozy TV nights at home, she cherishes every moment with her three children and supportive husband.

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Lisette Ruiz, RDH

Lisette has always taken an interest in the dental field and received her degree from her dream school. New York University College Of Dentistry. Her childhood dental hygienist always made her feel safe and comfortable when she was anxious or unsure. Because of that, she prides herself in building personal relationships with each patient, while reassuring them that they’re in a safe and judgement-free environment.

Lisette is passionate about saving smiles and working along side Precision Arts Dental Associates to make visits to the dentist a more pleasant experience while providing quality care. In her free time you can find Lisette enjoying the outdoors, walking her dog Rocky, or listening and dancing to music.

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Treatment objective: 

To provide comprehensive, functionally correct, esthetic treatment.