
Daniel Tseng, DMD
Dr. Daniel Tseng attended the Columbia University, School of Engineering for his undergraduate degree before going to dental school at the University of Connecticut, from which he graduated in 2000. He continues his education and training regularly, and has completed over 600 hours of continuing education since his graduation. Dr. Tseng has received advanced training in CEREC same-day dentistry, Diode soft tissue lasers, Solea® hard tissue lasers, Invisalign® clear aligners and Zoom teeth whitening. He has practiced in the Danbury area for over 20 years.
Dr. Tseng is a member of several professional dental organizations, including the American Dental Association® and the Academy of General Dentistry. He has been nominated for America’s Best Dentist by the National Consumer Advisory Board, and is a member of the national Industrial Engineering Honor Society and the National Dental Honor Society (Connecticut Chapter).
As a dentist, he is committed to educating his patients about their oral health and to providing the best possible care for them. Dr. Tseng also provides free dental care to veterans from Dental Lifeline Network, and volunteers for the Connecticut Mission of Mercy to provide dental care to the underserved population of the area. He also provided free dental care to youth in the juvenile correction center form 2009 to 2011.
Outside of the office, Dr. Tseng loves to travel, hike and ski.

Mayar Hassan, DMD
Dr. Hassan earned her Doctor of Dental Medicine degree from the Boston University Henry M. Goldman School of Dental Medicine. She is an active member of the American Dental Association and was inducted into the Omicron Kappa Upsilon National Dental Honor Society in recognition of her academic excellence and commitment to the field of dentistry.
Dr. Hassan is passionate about creating a collaborative environment where patients feel informed, comfortable, and confident in their care. She believes in clear, compassionate communication and takes pride in educating patients about their oral health so they can make decisions that align with their goals. With a strong focus on comprehensive and preventive care, she is dedicated to helping patients achieve long-term oral health and lasting, vibrant smiles.
Outside of the office, Dr. Hassan enjoys hiking, reading, and spending time with her family and friends.
Meet Our Team
Dr. Daniel Tseng and Dr. Hassan are happy to present our wonderful dental team! Friendly and accommodating, we provide life-long service and are thoroughly skilled in insurance and dental procedures. We treat our patients like family and offer down-to-earth, honest care. We invite you to learn more about us and call Danbury Dental Group at 203-792-3316 if you have any questions about dental care in Danbury, Connecticut, or if you would like to schedule an appointment with our dentists.
Patty – Registered Dental Hygienist
Patty has been with our dental team for over 20 years. Patty graduated from the University of New Haven with a degree in dental hygiene and from Tunxis Community College with her certification for dental assisting.
Patty lives locally with her husband and two kids. In her spare time Patty enjoys gardening, camping and hiking with her two dogs.
Samantha – Registered Dental Hygienist
Samantha completed her Bachelor of Science degree in human biology at the University of Wisconsin-Green Bay. After working for a few years she realized that her true passion was in dentistry, and in 2008 she graduated from Northeast Technical College with and Associate’s degree in dental hygiene. In 2015 she relocated from the Midwest and has been part of the Danbury Dental Group team ever since. Samantha is passionate about dental health and enjoys spending extra time with her patients to educate and encourage them to maintain good periodontal health.
In her spare time, she enjoys exploring the east coast, traveling, running and hiking with her husband, Andrew.