Pediatric Dental Associates

Meet the Doctors

The doctors at Pediatric Dental Associates have years of experience and have the specialized training necessary to prevent, diagnose, and treat your dental conditions. They stay current on the latest advances in research and treatment so you know you’ll get the most advanced care available anywhere. Click on the links below to meet our talented specialists.

1) PEDIATRIC DENTISTS
2) ORTHODONTISTS
3) GENERAL DENTIST

Pediatric Dentists

Gary Warrington, DMD
A graduate of the University of Maine, Dr. Gary Warrington completed his dental school education at Tufts University School of Dental Medicine where he graduated magna cum laude. He also received awards for clinical achievement in both Pediatric Dentistry and Endodontics and was inducted into OKU, the dental honor society. Following his graduation from Tufts, he completed a two-year residency in pediatric dentistry at the Tufts-New England Medical Center. In addition to all aspects of pediatric and adolescent dentistry, this program offered experience in hospital pediatric dentistry, dental care of medically compromised children and behavior management techniques. Dr. Warrington is a Diplomate of the American Board of Pediatric Dentistry, a Fellow of the American Academy of Pediatric Dentistry and past president of the Massachusetts Academy of Pediatric Dentistry. In addition to his practice in Winchester and Reading, Dr. Warrington has a faculty appointment as a pediatric dentist at Tufts and is a staff member of the Tufts Dental Facilities for persons with special needs.

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Joseph P. O’Donnell, DMD, MS
Dr.Joseph P. O’Donnell is a graduate of the University of Pittsburgh and the University of Pittsburgh School of Dental Medicine. Following his graduation from dental school, Dr. O’Donnell completed his specialty training in pediatric dentistry at the Tufts–New England Medical Center and Tufts University where he received his Master’s Degree and was inducted into OKU, the dental honor society and Sigma Xi, the honorary research society. Dr. O’Donnell is a Diplomate of the American Board of Pediatric Dentistry, a Fellow of The International College of Dentists, and a Fellow of The American Academy of Pediatric Dentistry. He is also a past president of the College of Diplomates of the American Board of Pediatric Dentistry. In addition to his practice in Winchester and Reading, Dr. O’Donnell has served as Chief of Pediatric Dentistry at the Tufts–New England Medical Center and Dentist–in–Chief of the Tufts Dental Facilities for persons with special needs. Dr. O’Donnell is also an Associate Clinical Professor of Pediatric Dentistry at Tufts University School of Dental Medicine.

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Brian E. Grove, DDS, MS
Dr. Brian E. Grove is a magna cum laude graduate of Concordia College in Minnesota where he majored in Biology and English writing and was honored as an Academic All-American in track and field. He received his Doctor of Dental Surgery degree from the University of Minnesota where he also received the Dental Science Research Award. Dr. Grove completed his post-graduate training in pediatric dentistry at the University of Minnesota and earned his Master of Science degree with research on tooth decay in an immigrant population. Dr. Grove is a member of the staff of the Department of Pediatric Dentistry at the children’s Hospital in Boston. He is also a member of the American Dental Association, the Massachusetts Dental Society and the American Academy of Pediatric Dentistry.

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Geraldine C. Garcia-Rogers
Dr. Geraldine Garcia-Rogers, fondly known as “Dr. Gigi,” is a graduate of Villanova University and Tufts University School of Dental Medicine. Following her graduation from Tufts, she completed her specialty training in pediatric dentistry and earned her Masters of Science degree from the University of Michigan-Ann Arbor. Dr Gigi is a diplomat of the American Board of Pediatric Dentistry, a fellow of the American Academy of Pediatric Dentistry and a member of both the American Dental Association and Massachusetts Dental Society. She has hospital affiliations with the Franciscan Children’s Hospital and Rehabilitation Center in Brighton, Massachusetts and the Massachusetts Hospital School for Children with Special Needs in Canton, Massachusetts. Dr Gigi also served on the Board of Directors of Project Stretch, Inc., a non-profit international dental outreach organization and the Reading Rotary Club.

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Sonia J. Wu, DMD
Dr. Sonia J. Wu is a graduate of Cornell University where she received her Bachelor of Science degree. She received her dental degree from the University of Pennsylvania School of Dental Medicine. Following her graduation from dental school, Dr. Wu completed a two-year Residency Program in pediatric dentistry at the Lutheran Medical Center in Brooklyn, New York. While in New York, Dr. Wu also served as a Clinical Instructor in Pediatric Dentistry at New York University. Dr. Wu has been active in community service projects, having provided dental education and screening for children of underserved communities and Headstart, and has worked with the Special Smiles program of the Special Olympics. Dr. Wu has also made a research presentation to the Annual Meeting of the American Academy of Pediatric Dentistry and is a member of that organization. She is also a member of the American Dental Association.

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Orthodontists

Shannon L. Duffy, DMD
Dr. Shannon L. Duffy is a graduate of Brandeis University where she majored in Biology and was a member of the varsity women’s basketball team. She received her Doctor of Dental Medicine degree from the University of Connecticut and was inducted into Omicron Kappa Upsilon (OKU), the national dental honor society. Dr. Duffy completed her three year post-graduate training in orthodontics at Stoney Brook University in New York. Dr. Duffy conducted research at Stoney Brook and the Beth Israel Deaconess Medical Center and her work was published in scientific journals. She is a member of the American Dental Association, the American Association of Orthodontists and the Massachusetts Dental Society.

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Christian J. Meyer, DMD, MS
Dr. Christian J. Meyer is a cum laude graduate of the University of California Santa Barbara and a magna cum laude graduate of the Harvard School of Dental Medicine. Additionally, he completed his orthodontic training at Harvard, and received a second doctoral degree in the field of cell biology for research conducted at Children’s Hospital. His findings are published in the highest level scientific journals such as Nature, and his body of work has advanced scientific views on the effect of mechanical forces on human cells and tissues-an area directly related to clinical orthodontics. Upon graduation from his orthodontic residency, Dr. Meyer was honored with the highest awards for clinical proficiency and scientific research. This was the first time Harvard bestowed these academic honors to the same individual. Dr. Meyer is a member of the American Dental Association, the American Association of Orthodontics, the International Association of Dental Research and OKU. His interests include woodworking, surfing, saltwater fishing, and mountain biking.

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General Dentists

Kallen K. Hull, DMD
Dr. Hull is a graduate of Utah State University where he received his Bachelor of Science degree. He received his dental degree from Tufts University School of Dental Medicine where he was a Tufts Merit Scholarship Recipient and a member of Omicron Kappa Upsilon, the national dental honor society. Dr. Hull subsequently completed a one year General Practice Residency program at Tufts and received training in the management of special needs individuals as well as hospitalized dental patients. In addition to his private practice, Dr. Hull is a Clinical Instructor in the Department of Restorative Dentistry at Tufts. Dr. Hull is a member of the American Dental Association, the Massachusetts Dental Society, and the American Academy of Hospital Dentists.

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