About Us

O’Leary Dental Office North East, PA – Meet Our Team

O’Leary Dental specializes in cosmetic, reconstructive, restorative, orthodontic and family dentistry with a great emphasis on preserving your natural, genuine, and beautiful smile. The O’Leary Dental Office was founded by Dr. Marcellus R. O’Leary in 1932 and has been offering quality comprehensive dentistry to the surrounding area for over 85 years. we continue to provide the most advanced but proven dentistry available. Our office is composed of an exceptional team whose only purpose is to assure your utmost satisfaction. With a joint partnership with you in your long-term dental goals, our office ensures the realization of healthy dental well-being.

O’Leary Dental focuses on optimizing the comfort and minimizing the pain by designing treatment plans that meet each patient’s individual needs. We work to educate our patients on the best ways to achieve and maintain optimal oral health. Our team evaluates changes and advances in modern dentistry and uses only those that best serve each patient’s unique dental needs.

At O’Leary Dental Office, we focus on creating a successful outcome for you, while assuring a very comfortable environment where you feel ease and calmness in going through any dental procedure you may need.

Call us today to book an appointment

Meet O’Leary’s Highly Qualified Dentists


Dr. Joseph M. O’Leary, DDS

Dr. Joseph O’Leary is a graduate of the University of Notre Dame where he received his Bachelor of Science. He subsequently attended West Virginia University Dental School earning a Doctor of Dental Surgery degree. He has pioneered the application of Microscopic Dentistry to all areas of his dentistry. He has undertaken studies in the neuromuscular treatment of TMJ/TMD and full face Orthodontics.

Dr. Joseph O’Leary is committed to his patients’ full satisfaction. His continuing education assures that his procedures only follow the latest dental techniques with the most updated technology available.

Dr. G. Peter Moylan III, DMD

Dr. Peter Moylan is a native to North East and went on to earn his undergraduate degree from the University of Pittsburgh in 1981. He received his Doctor of Dental degree from Temple University. Following dental school, he began his career joining the practice of his father at O’Leary Dental Office. Dr. Moylan is a member of the Erie County Dental Association.

Dr. Moylan enjoys spending his free time with his wife, Ann, and daughters Kelly and Megan. Golfing and skiing are a family affair!

Dr. Chad O’Leary DDS

Dr. Chad O’Leary is a native of North East. He attended Coastal Carolina University where he received his Bachelor of Science in Marine Biology. After further studies, he attended West Virginia Dental School to receive his doctorate. He has returned to North East to carry on a family legacy.

Meet our Tremendous Dental Team


Stacy has been Dr. Joseph O’Leary’s hygienist since 1988. She graduated from Erie Community College in Buffalo, NY. She excels at making patients comfortable while providing quality care. Outside the office, she enjoys spending time with her family and traveling.
Cathy has been Dr. Joseph O’Leary’s assistant since 1999. She grew up in North East and has been married to her husband Bill, since 1974. They have three grown children, as well as five AFS sons and daughters from Sweden, Norway, England, Italy, and Columbia.
Nicole has been Dr. Peter Moylan’s hygienist since 2011. She graduated in 2009 from Fortis Institute in Erie, PA. She puts her patients at ease with her winning personality; their dental health is her first priority. Nicole is married to Ben, they have one daughter. They enjoy camping in the summer months.
Kayla has been Dr. Peter Moylan’s assistant since 2016. She graduated from Great Lakes Institute of Technology as a certified dental assistant in 2012. She enjoys the interaction with patients and strives to make them comfortable.

Reception Desk Staff


Kim has been with O’Leary Dental Office since 1984. She works at the front desk and is happy to work with patients to schedule their appointments and handle their insurance needs. When not working, Kim and her husband enjoy their four children and traveling.
Cindy has worked at O’Leary Dental Office since 1990. In those years she has worked as a chair side assistant for both Dr. George and Peter Moylan. Currently, Cindy handles Dr. Moylan’s purchasing, accounts payable and receivable, and is hygiene coordinator. She resides in North East with her husband Paul and son Kyle.
Cassandra began working at O’Leary Dental in 2013. You will find her smiling face at the reception desk where her experience lies in patient care, scheduling appointments and dealing with insurances. When not working, Cassandra and her husband enjoy spending time with their children.

Our office uses only cutting-edge technology to ensure that we only offer the best for your treatments. If you’d like to learn more about our services, or need to schedule an appointment, contact us today!