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Meet Our Residents

Our residents are all dentists who hold a D.D.S. (Doctor of Dental Surgery) or D.M.D. (Doctor of Dental Medicine). They are learning to specialize in orthodontics under the supervision of expert, experienced orthodontists that are part of the Seton Hill University Center for Orthodontics staff. This teaching facility incorporates the latest technology with specialized equipment to provide the highest standard of treatment for patients of all ages.

Christopher Cortopassi, D.M.D.

Dr. Cortopassi was born and raised in Wheaton, IL. He attended the University of Dayton for an undergraduate degree in Biology and played football there as well. He attended Midwestern University for Dental School, receiving his D.M.D. He recently married the love of his life, Katelyn, in April 2021. In his free time Dr. Cortopassi likes to bike, golf, read, and explore new restaurants. 

Brett Crell, D.D.S.

Dr. Crell was born and raised just outside Philadelphia. He has lived and worked in Texas after graduating from The Pennsylvania State University with degrees in Finance, Economics and International Business. He earned his D.D.S. from the University of Texas School of Dentistry at Houston. Dr. Crell is passionate about patient care, spending time with family and friends, and traveling. 

Justin Darley, D.M.D.

Dr. Darley was born and raised in north central Florida. He earned his bachelor's degree at University of Central Florida, master's degree in biomedical sciences at Barry University in Miami, and his D.M.D. degree at Nova Southeastern University. Dr. Darley is an avid fisherman and also enjoys sports, hunting, working out, and spending time with his family and two Labrador retrievers.  

Jennifer Dumé D.M.D.

Dr. Dume` was born in the Dominican Republic and grew up in New Jersey. She graduated from New York University with a bachelor's degree in Global Public Health with a minor in Spanish and Chemistry. Dr. Dume` earned her D.M.D. from the University of Pennsylvania School of Dental Medicine. Dr. Dume` loves cooking, reading, hiking and playing fetch with her Yorkie.

Christy Dunham, D.M.D.

Born and raised in Tarpon Springs, Florida, Dr. Dunham received her bachelor's degree from the University of Florida and her D.M.D. degree from Nova Southeastern University. She likes being active and playing sports, especially volleyball and tennis. Additionally, she enjoys traveling and spending time with friends and family. 

Monica Gandhi, D.M.D.

Dr. Gandhi is from Florida. She attended Emory University in Atlanta, GA where she earned her bachelors in biology. Later she received her D.M.D. from Roseman University of Health Sciences, in South Jordan, UT. She recently completed a one-year advanced education in general dentistry at the University of Detroit Mercy. In her off time, Monica enjoys spending time with her family, playing tennis, golf, traveling, and listening to music. 

Alexis Ghadami, D.D.S.

Dr. Ghadami is from New York, where she attended a 7-year joint program, earning her B.S. from Adelphi University. She completed her dental school training at New York University College of Dentistry. Alexis loves traveling, baking, biking on her Peloton, and spending time with family. 

Chris Gregoire, D.D.S.

Dr. Gregoire was born and raised in Scarborough, Maine. He received his B.S. at Dickinson College in Carlisle, PA and his D.D.S. degree at the University of Maryland School of Dentistry. As a commissioned officer in the US Navy, Dr. Gregoire completed an Advanced Education in General Dentistry Residency at Naval Medical Center Portsmouth, Virginia. Prior to pursuing orthodontics, he practiced general dentistry for four years in the Navy and three years in private practice. At home, Dr. Gregoire and his wife, Erin, have two kids, Andrew and Madeleine, and two dogs, Mookie and Sophia. He enjoys baseball, music, woodworking, golfing, and enjoying the great outdoors!

Katherine Hilton, D.M.D.

A native of south-central Pennsylvania, she earned her Doctor of Pharmacy and Bachelor of Science in Pharmaceutical Sciences degrees from Duquesne University, she then received her Doctor of Dental Medicine and Masters in Higher Education from the University of Pennsylvania. With a strong interest in dental education and community outreach, Dr. Hilton aspires to provide empathetic and compassionate care to her patients. In her spare time, Dr. Hilton enjoys traveling, reading, and spending time with friends and family. 

Emily Katz, D.M.D.

Dr. Katz received her B.S. degree from the University of Florida and her D.M.D. from LECOM School of Dental Medicine in FL. Born and raised outside of Philadelphia, she is very excited to be back in PA to enjoy the seasons and study Orthodontics! In addition to traveling and trying new foods, she enjoys exercising and spending time with loved ones and her mini goldendoodle, Arlo. 

Olivia Kubli, D.M.D.

Dr. Kubli received her B.S. in Biology at Washington & Lee University with a minor in Studio Art. She then returned to the greater Pittsburgh area, where she was raised, to attend dental school. She received her D.M.D. from the University of Pittsburgh School of Dental Medicine. She enjoys traveling, exploring new restaurants, hiking and spending time with friends and family She also loves animals; has ridden horses her whole life, and has a Golden Retriever named Oakley with her husband, Eric.

Susan Liu, D.D.S.

Dr. Liu was born and raised in New Jersey. She received her BS degree in Biomedical Sciences and Doctor of Pharmacy from the University at Buffalo. Later, she received her Doctor of Dental Surgery from Columbia University. Susan enjoys the outdoors, cooking, and spending time with loved ones.

Stephanie Quinn, D.D.S.

Dr. Quinn was born and raised in Staten Island, New York. She received her Bachelors of Science degree in Biology from the University of Miami followed by her D.D.S. from Stony Brook School of Dental Medicine. In her free time, Stephanie lives an active life spent with family and friends. 

James Reeves, D.D.S.

Dr. Reeves was born in Monroe, Louisiana and raised in Oklahoma City, Oklahoma. He earned a Bachelor of Science in Biology and his doctorate in Dentistry at the University of Oklahoma. He met his wife, Kendall, while they were on a study abroad trip to Italy, and she is currently an ophthalmology resident at the University of Texas in Houston. Dr. Reeves enjoys golf, tennis, and being in the outdoors.

Allen Sara, D.D.S.

Dr. Sara was raised in Prescott, AZ and attended the United States Military Academy at West Point where he completed his degree in engineering management/civil engineering. He served nine years on active duty as an Infantry Officer in the United States Army before transitioning to the Army Reserves to pursue dental school. Dr. Sara attended the University of Michigan School of Dentistry receiving his D.D.S. He is married to his wife Alex and has two young children, Byron and Leighton. Dr. Sara enjoys golf, fitness, the outdoors and spending time with friends and family.

Alexa Spokane, D.M.D.

Dr. Spokane was born and raised in Beaver, Pennsylvania, a small town 40 minutes North of Pittsburgh. She attended the University of Pittsburgh, earning both a Bachelor of Science in Biology and her Doctor of Dental Medicine degree. Alexa's life revolves around all things teeth. When she is not treating patients, she enjoys traveling with her husband-to-be Evan, watching movies, and snuggles with her kitty named Kida. 

Connor Turley, D.D.S.

Dr. Turley is from Manhattan Beach, California. He attended Santa Clara University to receive a B.S. in Chemistry, then went on to University of Pacific, Arthur A. Dugoni School of Dentistry to receive his D.D.S. Connor enjoys hiking, climbing, snowboarding, and watching TV with his cat Floyd.

Michael Weber, D.D.S.

Dr. Weber was born and raised in Omaha, Nebraska. He attended the University of Nebraska where he majored in Biochemistry and completed dental school training at the University of Nebraska Medical Center College of Dentistry. Dr. Weber is very active and loves to watch and play sports. When he is not cheering on the Nebraska Cornhuskers, you will find him enjoying the outdoors.

Annika Wessel, D.M.D.

Born and raised in Drums, PA, she received her B.S. in Biomathematics and Biology from the University of Scranton with a minor in Psychology. Dr. Wessel received her D.M.D. from University of Pittsburgh School of Dental Medicine. She enjoys traveling (pre-covid), hiking, and exploring new places/ restaurants around the world! A huge animal lover, she grew up with horses, dogs, cats, chickens, and peacocks on the family farm back home.