Our caring team is dedicated to providing you with quality care and a positive experience each time you visit DeMaria Family Orthodontics & Dentistry. We welcome you to call or visit us today to schedule an appointment with Dr. Mark DeMaria or Dr. Sean Gill, our experienced orthodontist in Greensburg and Export, Pennsylvania, and learn more about our services

Front Desk Coordinators

Jessica

Jessica graduated in July 2022 with her associates degree in business. She joined our practice in May 2023, and loves being part of a great team. When not in the office, Jessica can be found spending time with her two dogs.

Marketing Director

Colleen

Colleen joined our team in March 2022 and works at all three of our offices to help our practice run smoothly, from the front desk to marketing and keeping meetings on-track. She loves that we get to make people happier and more confident with their smile.

Colleen and her husband, Eric, have three children. Outside the office, she enjoys spending time with friends and family, reading, cooking and going on vacations to new places.

Orthodontic Treatment Coordinators

Holly

Holly joined DeMaria Family Orthodontics & Dentistry in April 2022. She keeps our office running smoothly and enjoys interacting with our patients and their parents.

Holly and her husband have one daughter, who is married. When not in the office she can be found spending time with her family and friends. She is also a Pittsburgh Penguins fan!

Leah

Leah attended Rock University for her bachelor’s degree in health science, and WCCC for her certification as a dental hygienist. She enjoys being part of a practice that is team oriented and where everyone is understanding, detail-oriented, passionate and positive. Leah is committed to continuously engaging her patients and their parents in oral health education and to providing a comfortable and friendly environment.

Leah is married to Matt. She is a Pittsburgh sports fan and enjoys gardening and watching TV and movies.

Sherry

Sherry earned both her Bachelor of Science degree and her certification as a registered dental hygienist from the University of Pittsburgh. She joined our team in 1998, and enjoys being part of a dental practice where patients receive extra attention. Sherry is dedicated to providing her patients with quality care and to educating them on good oral hygiene.

Sherry and her husband have two children. Outside the office, she enjoys traveling, working out, golfing, bowling, hiking, biking and gardening.

Orthodontic Assistants

Heather

CDA, COA, EFDA

Heather graduated from Westmoreland County Community College, completing their dental assisting program in July 2019 and their expanded functions dental assisting program in March 2020. She joined our team in August 2020 and treats every patient as if they were her own family member. She loves seeing patients happy with their new smiles after their treatment is complete! Heather also orders all supplies and inventory for our office to ensure we can care for our patients and is often found helping other assistants.

Heather has one daughter. Outside the office she is a cake decorator and enjoys baking with her daughter and her niece and nephew.

Kathy

Kathy joined our team in January 2018 and loves interacting with our patients and helping them improve their smiles. She is committed to delivering quality care to each person she meets.

Liz

Elizabeth has been with DeMaria Family Orthodontics & Dentistry since April 2007, and she is passionate about patient care! As a certified orthodontic assistant and expanded functions dental assistant, Elizabeth brings a wealth of experience with her to the office every day.

Elizabeth and her husband, Jay, have two children and four grandchildren. When she is not at the office, she enjoys jazzercize and spending time with her family.