Our Dentist & Team

Dr. George Tsangaroulis, D.D.S.


Dr. George Tsangaroulis (“Dr. T”) was raised in Bridgewater, New Jersey and currently resides in Greenwich, CT.  He attended Rutgers University, the State University of New Jersey, where he graduated with a Bachelor of Science Degree in Biology. Upon completion of his undergraduate studies, he went on to pursue his dental education at New York University College of Dentistry, where he received an honors achievement award in cosmetic dentistry.  He then attended a one year hospital residency program at Long Island College Hospital in Brooklyn, NY where in addition to General Dentistry, he trained in Oral Surgery, treating medically compromised patients and restoring their dentition.

Dr. Tsangaroulis has raised the bar for what is possible in patient care.  He was recently voted one of “America’s Best Dentists” by the National Consumer Advisory Board, and one of the Top Dentists in the United States by the Consumers’ Research Council of America.  These honors were issued due to his commitment to his profession, dedication to his patients through continuing education and practicing responsible cosmetic dentistry. He is an expert and true artist with Full Mouth Dental Rehabilitation and Cosmetic Dentistry, which can involve replacement of missing teeth and restoring dimension of severely worn teeth.  These also include Porcelain Veneers and Crowns, CEREC 3D Scanning, One-Visit Porcelain Crowns and Onlays, Invisalign and laser dentistry.  In addition, Dr. Tsangaroulis has a special interest in treating Obstructive Sleep Apnea collaboratively with physicians, using custom Oral Appliance Therapy, also know as Mandibular Advancement Devices.  He is known for his compassion and wonderful bedside manner, as well as his thorough, meticulous yet holistic approach.

Dr. Tsangaroulis’s pursuit of excellence is constant and always growing.  In fact one of his prinicipal mottoes is based on this quote: “Instruction ends in the school-room, but education ends only with life.”  – by Frederick W. Robertson.  He stays on the cusp of current knowledge by being an active member of dental and medical organizations that provide invaluable information and encourage forward thinking.  These include:

  • American Dental Association
  • Connecticut State Dental Association
  • Greenwich Dental Society
  • Academy of General Dentistry
  • American Academy of Cosmetic Dentistry
  • Greater New York Academy of Cosmetic Dentistry
  • American Academy of Clear Aligners
  • American Academy of Physiological Medicine and Dentistry
  • American Academy of Dental Sleep Medicine
  • International Academy of Oral Medicine and Toxicology
  • International Academy of Biological Dentistry and Medicine
  • Academy of Orofacial Myofunctional Therapy
  • Fairfield County Dental Club
  • Spear Education Study Club
  • Seattle Study Club

He has mastered a multitude of skills and techniques by attending weekly courses and seminars and investing in the best technology and highest quality materials available.  He strongly believes in not only staying current, but also being ahead of the curve by going above and beyond the minimum number of hours required to maintain a dental license.  He completes hundreds of hours of continuing education courses each year in order to stay on the cutting edge of the latest advancements in all aspects of general dentistry.

Dr. Tsangaroulis loves children, having 3 of his own, and has grown a passion for early childhood growth and development, and Myofunctional Therapy.  MT is used to correct habits such as thumb sucking, mouth breathing, and tongue thrust swallowing patterns.  These are all related to sleep and breathing disorders, which can also have a negative impact on a child’s jaw development, tooth alignment and cognition.  By thoroughly screening patients and catching these signs at an early age, it can really change a child’s life.

Outside of his passion for Dentistry, Dr. Tsangaroulis enjoys traveling to southern states, Greece and France to visit family, sports and exercising.   He has taken a leadership role in the community by volunteering for local events and benefits, one of which include the Neonatal Intensive Care Unit at Greenwich Hospital along with his wife who is a Registered Nurse there.   He has also been active visiting schools to educate and help kids understand the importance of a healthy smile,  supporting charitable organizations and raising awareness for overall health and prevention.  He is an avid New York Sports fan being born in Brooklyn: he follows the Giants, Knicks and Yankees.  Above all he is a family man – a loving devoted husband and father, happily married to his beautiful wife Melanie with their 3 adorable children, Nicholas, Charlotte and newborn baby Colette.

Meet our Team

Hata Berisha

Office Manager

Hata (pronounced Haw-ta) was born and raised in Europe, and currently lives in Stamford, CT. She holds a degree in Business Management from the University of Connecticut, and has worked in the dental field for over 20 years. She frequently attends continuing education courses and seminars to keep our practice up to date in all things dental.

She is known for her kindness and generosity, and will always help and accommodate patients in any way she can. In her spare time, Hata enjoys spending time with her three children and her close-knit family, attending sporting events, playing tennis, shopping and is currently learning how to play golf.

Tracy Stiegelmayer

Dental Hygienist

Tracy is a graduate of Quinnipiac University with a degree in Biology, and studied Dental Hygiene at Middlesex County College. Tracy takes pride in educating her patients on new products and tips to help them attain healthy, beautiful smiles. She goes above and beyond on continuing education by attending courses and seminars on a weekly basis, as well as participating with multiple regional study clubs. Tracy and her husband live in Stamford, Connecticut. In her spare time she enjoys exercising, cooking, and spending summer weekends at the Jersey Shore with her family.

Silvia Sousa

Dental Assistant

Silvia Sousa became a part of our team in early 2012. She graduated from Norwalk High School. Still continuing her education, Silvia takes courses at Norwalk Community College. To stay up to date with all the latest technology and procedures, she frequently takes enlightening educational courses with Dr. Tsangaroulis. When not at work Silvia enjoys spending time with friends and family, shopping, and spoiling her dog.



Nemo is a young clown fish. He is an independent, fun loving and curious fish whose job is to greet all the patients that come into the office with a big smile and a wave of his fin. Originally from the Pacific Ocean, Nemo is very happy with his new home in Greenwich, CT with his Dad and their friend Dory. He is constantly trying to prove to his Dad that he can do things all by himself, and gets into mischief from time to time.



Dory is a Blue tang Fish with a sunny disposition. It is her positive energy and persistence that help Marlin be re-united with his son Nemo. Originally from the Indo-Pacific, Dory is a very active fish and LOVES to swim! Unfortunately we cannot give Dory a job title because she forgets her duties anyway!



Marlin is Nemo’s dad, his job is “Finding Nemo”. Marlin is originally from the Indian Ocean. Since he is a clown fish, he likes to try and tell funny jokes, even though they are not always funny. Thanks to his side kick Dory, he has lightened up a bit and is not always so serious. Marlin protects little Nemo because he promised his wife Coral that he would!


The Dinosaur

Dino is kind enough to show our younger patients how to brush their teeth properly. But beware if he gets excited: when he needs to rinse, he might “spray” water on you!