About Us

Dr. Paul J. Prosser III

He received his B.A. degree from Villanova University in 1973 and his dental degree from University of Maryland Dental School in 1978. Dr. Prosser has received numerous awards and honors throughout his career for his work in dentistry. The American Equilibration Society 1984, American Dental Association 1986, The American Association for Functional Orthodontics 1997, and The PA Dental Association 2007, just to name a few.

He takes great pride in giving the opportunity for his team to grow and advance in the changing work of dentistry. Dr. Prosser is always encouraging his team to grow personally and professionally.

He experiences great satisfaction creating beautiful smiles that change people’s lives.

Dr. Sarah K. O’Sullivan

Dr. O’Sullivan earned a B.S. in chemistry from Lebanon Valley College before receiving her D.M.D. from Temple University School of Dentistry in 2000. Originally from Kutztown, she has practiced general, family, and restorative dentistry in York county since 2001. She was delighted to join the Stonebridge Dental team in 2010. She resides in York with her husband, Dan, and son, Ronan.

Dr. O’Sullivan strongly believes in making quality dentistry in a compassionate manner available to all. She has pursued additional studies in pain control and the connections between oral and systemic health. “I view the practice of dentistry as my mission,” she says. “This is a wonderful time to be a dentist. The dental technology we have available to us today makes it possible for everyone to enjoy the confidence of a healthy and
beautiful smile. I am grateful every day for the opportunity to share my
skills and knowledge with my patients.”


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