The Team
The team at Chestnut Oak consists of a group of seasoned dental professionals who really know their stuff. Lori Greene and Loretta Rizzo handle front desk, insurance, and administrative issues, Andrea Perez assists Dr. Costigan directly, and Elyse Imbasciani handles both admin and clinical duties. Jen MacEntee, Judy Cummings, Kimmy Sayers, and Jen Falcon are Chestnut Oak's amazing hygienists, who work diligently to empower our patients to have the best oral health possible. Dr. Costigan feels extremely fortunate to have such an amazing team of women working alongside her.
Dr. Mary Costigan
Dr. Mary Costigan has been in the dental field for almost three decades. After working as a dental assistant, she pursued her dream to become a dentist and graduated from Tufts University School of Dental Medicine in 1999. She completed her general practice residency at the Manhattan Veterans Administration Medical Center. She trained at the Manhattan Veterans Administration’s Program for Prosthodontics and became a prosthodontist, a dentist who specializes in the restoration and replacement of teeth. After finishing the program, she began working in private practice. She later completed advanced training at New York University’s Implant Fellowship program under the tutelage of the internationally renowned Dr. Dennis Tarnow. She worked as a private practice associate in New York City and the Hudson Valley for 17 years prior to the formation of Chestnut Oak Dental.
Dr. Costigan is a member of the American Dental Association, the New York State Dental Association, the Dutchess County Dental Society, and the American College of Prosthodontists. She lives in Cold Spring and enjoys spending time with her two children, volunteering for Girl Scouts and Boy Scouts, playing guitar and drums, and songwriting. She looks forward to serving the community and fulfilling the mission statement of Chestnut Oak Dental.
“After years of dental neglect resulting in badly worn teeth I was encouraged to make an appointment with Dr. Costigan. It was the best decision I have made in years! Dr. Costigan created a dental design that restored functionality and made me proud to smile. Without question, Dr. Costigan is the most capable dentist I have ever had – quite simply, she is outstanding!”
- M. M.