Meet the doctors

Dr. Michelle Hershberger

Dr. Michelle Hershberger was born and raised in Johnstown, PA., and has been practicing as a dentist for 19 years. She graduated with her D.M.D. degree from the University of Pittsburgh in 1994, after completing her undergraduate degree from the same university.

Dr. Hershberger also serves as the owner and operator of Youth Smiles Dental, which opened in 2014. She loves working with the children and has focused on youth dental since 2008. Previously, she worked in a family dental practice for years, but now she is able to focus primarily on children and enjoys that most. Outside of work, she enjoys movies, swimming, walking, hiking, playing with her dogs and spending time with her family.

Dr. Katherine Fitzgerald

Dr. Katherine (Katie) Fitzgerald, a New Kensington, PA., native, has over 30 years of experience practicing in the dental field. Dr. Fitzgerald completed her undergraduate studies at Augusta University in 1982 to acquire a B.S. in Biological Science and completed her D.M.D. at the Medical College of Georgia School of Dentistry in 1986. She served three years in the Navy Reserve, three years of active duty in the Army, and spent one year of General Dentistry Residence in the Army.

Dr. Fitzgerald has been working with Youth Smiles since July of 2014. Dr. Fitzgerald enjoys horseback riding, gardening, cooking, traveling, and spending time with her son.

Dr. Celeste Kostelnik

Dr. Celeste Kostelnik received her undergraduate degree in Biology, Summa Cum Laude, from Waynesburg University in 1999. She furthered her interest in Dentistry by attending the University of Pittsburgh School of Dental Medicine in Dentistry in 2004.

Dr. Kostelnik shares her wonderfully diverse background with Youth Smiles having valuable experience in adult, family and pediatric practices. She is a Major in the Pennsylvania Army National Guard, where she contributes her skills as a dentist. She is also an avid runner and enjoys being active outdoors.

Jerry Lion

Jerry Lion serves as the office and operations manager for Youth Smiles Dental Center, and has been doing so since the office opened in 2014. Previously, he spent 35 years in the auto industry, with 20 of those as a General Manager. His business experience has proved vital to the growth and development of Youth Smiles. He was born on Pittsburgh’s South Side, graduated from Carrick High School and served in the Marine Corps.

He enjoys helping children receive their dental treatment and states: “They say if you enjoy what you do, you’ll never work a day in your life. I can honestly say I love my job.” Outside of work, he enjoys spending time with his grandchildren. They are the most important part of his life. He also enjoys racquetball, swimming, walking, and he enjoys riding his motorcycle and spending time with his wife.

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