Thomas Petnuch, DMD, FICOI, MAGD
Dr. Petnuch graduated from the University Of Pittsburgh School Of Dental Medicine. He has owned and operated Willowbrook Dental Associates since 2002. He is a member of the American Dental Association, the Pennsylvania Dental Association and maintains mastership in The Academy of General Dentistry.
Dr. Petnuch and his wife have four children and have been involved in the Greensburg community for many years.
Dr. Justin Thomas
Dr. Justin Thomas grew up in Indiana, PA where he also attended Indiana University of Pennsylvania with a degree in Biology Education. He then received his dental degree from University of Pittsburgh School of Dental Medicine. He served in the United States Army at Ft. Jackson, South Carolina prior to joining Willowbrook Dental Associates. He is a member of the Academy of General Dentistry and is passionate about being a lifelong learner and educator. In his free time he enjoys woodworking projects, cooking and spending time with his wife, Jennifer.
Dr. Sarah Yun
Dr. Sarah Yun is a compassionate general dentist who is committed to providing high quality care to her patients. She received her Bachelor’s degree from Emory University in 2016. She completed her Doctor of Dental Surgery degree at New York University, where she was inducted into the Omicron Kappa Upsilon national dental honor society for being in the top of her class. Following graduation, she completed one year of residency at the Manhattan Veterans Affairs Hospital.
During her spare time, Dr. Yun enjoys spending time with her husband and two dogs, cooking, and running.
Dr. David Gulibon
Dr. Gulibon earned his BS in Public Health from the University of South Carolina and his DMD from the University of Pittsburgh School of Dental Medicine. Dr. Gulibon is dedicated to providing gentle, personalized care in a comfortable environment, takes time to listen carefully, explain things clearly, and creates treatment plans that support both oral health and overall well-being.
Outside the office, he enjoys weightlifting, biking, playing the drums, attending concerts and cheering on the Pittsburgh sports teams.