The Dental Staff in West Sayville, NY

Every Visit:
A Unique Experience

Dr. Richard Sigismondi and our entire West Sayville dental team are dedicated to your needs, making sure appointments are convenient, relaxing, and absolutely comfortable. We ensure plenty of time is spent listening to you and discussing your options. We also do everything we can to make your dentistry affordable by offering flexible financing options such as CareCredit.

When you arrive at our office, you are always warmly greeted and offered refreshments from our coffee bar. All of our treatment rooms are equipped with noise-canceling headphones, iPods, Pandora radio, blankets, and cozy pillows. We offer movies or satellite TV for longer appointments or to keep kids occupied.

Best of all, our team is highly trained and experienced, and each team member has a unique love of learning. In fact, Dr. Sigismondi averages over 40 hours of continuing education a year!

We’d love to get to know you – and your smile – better, and help you find your ideal health!

West Sayville Family Dentist Dr. Sigismondi

Richard M. Sigismondi, DMD, P.C.

Dr. Sigismondi, a Long Island native, has had a lifelong passion for dentistry. He started his journey by completing his undergraduate work at Stony Brook University, where he earned a Bachelor of Science in Biology. This solid foundation in the sciences prepared him well for the next step in his education, as he went on to graduate from the Washington University School of Dental Medicine in St. Louis, Missouri, in 1979.

His first job shaped his early years in the field at the age of 15, working in his father’s dental laboratory, which sparked his interest in occlusion and its effects on the teeth, muscles, and joints. This early exposure set the stage for his further studies in occlusion at the prestigious Dawson Academy and the Piper Education and Research Center. Through these experiences, Dr. Sigismondi achieved the status of Dawson Academy Scholar and developed an intricate understanding of the relationship between teeth and the temporomandibular joint (TMJ).

In addition to his scholarly achievements, Dr. Sigismondi is a well-rounded implant practitioner, having completed his Fellowship in Implant Restoration at the Misch Resnik International Implant Institute. He’s a firm advocate of using surgical guides in implant placement, which ensures the accuracy and optimal outcomes of the procedure in terms of aesthetics, function, and comfort.

Dr. Sigismondi shares his expertise and passion for dentistry with future generations of dental professionals, serving as a clinical professor at Stony Brook University School of Dental Medicine. He trains residents to treat the mouth as a whole, considering all the intricate relationships within the oral cavity. In this role, he continues to shape the future of the dental field and pass on the knowledge he has gained over his long and successful career.

Meet Your West Sayville Dental Staff

We welcome you to the dental office of Richard M. Sigismondi, DMD, P.C. Our team comprises dedicated and experienced professionals passionate about providing personalized and comprehensive dental care to our patients. Each team member brings unique skills and expertise to our practice, and we take pride in working together to ensure that every patient receives the highest level of care. Get to know our team and discover the people who make our practice a warm and welcoming environment.

Marcy's Photo

Marcy S.

Appointment & Financial Coordinator

Marcy is the Appointment and Financial Coordinator for Dr. Richard Sigismondi’s dental practice, with over 50 years of experience and a passion for the role. Her journey in dentistry started in Philadelphia, where she began as a dental assistant in 1971 and later expanded her knowledge through the Temple University Dental Program for expanded duties in four-handed dentistry.

In 1984, Marcy moved to Lake Ronkonkoma with her family and secured a job in a periodontal practice. There, she served as a study club coordinator, providing continuing education events for dentists on Long Island. Although Marcy officially retired in 2014, her love for dentistry led her to return to work as a valuable member of Dr. Sigismondi’s team.

As the Appointment and Financial Coordinator, Marcy strives to bring her best self to the job daily and inspire those around her. In addition, she takes pride in providing efficient and practical support for patients and the team.

Outside work, Marcy enjoys traveling with her husband and exploring new destinations through cruising. In addition, she feels blessed with six grandchildren and one great-grandchild, who brings her great joy and happiness.

Christine's Photo

Christine T.

Treatment Coordinator

Christine is a Treatment Coordinator at Richard M. Sigismondi, DMD, P.C., and has been passionate about dentistry for over 36 years. Her journey in the field began when she took a job as a dental assistant, and since then, she has devoted herself to providing the best possible care and comfort for all her patients’ dental needs.

As a Treatment Coordinator, Christine takes pride in building solid relationships with her patients, ensuring they receive the highest quality of care. Outside work, Christine enjoys playing tennis and spending time with her husband, two children, and their Boston Terrier, Finnegan Angus.

Karen's Photo

Karen M.

Registered Dental Hygienist

Karen is a Registered Dental Hygienist at Richard M. Sigismondi, DMD, P.C. With over 30 years of experience in dentistry, Karen studied dental hygiene at Hudson Valley Community College. Her responsibilities include providing cleanings, taking X-rays, educating patients, and offering Zoom! Whitening System to brighten their smiles.

Karen has received advanced training in local anesthesia and Nitrous Oxide from Stony Brook University, which helps her ensure a pain-free patient experience. She takes pride in working with Dr. Sigismondi and the team to offer personalized care and help patients achieve a healthy smile. In addition, Karen enjoys boating and gardening in her free time with her husband and two sons.

Katie's smile

Katie R.

Treatment Coordinator

Katie is a Treatment Coordinator at Richard M. Sigismondi, DMD, P.C., with a strong background in dental assisting. After graduating from Sayville High School in 2017, she attended Eastern Suffolk Boces and completed a course in dental assisting. During her studies, she interned at Dr. Sigismondi’s office, gaining valuable hands-on experience.

One of Katie’s favorite aspects of being a dental assistant is helping nervous patients feel comfortable. She is grateful to have learned from Dr. Sigismondi, who has established a warm and welcoming environment in the office.

In her free time, Katie enjoys spending time with her friends and family, and she has a special affection for her two cats, Dobby and Stormy. In addition, she dedicates herself to providing the highest level of patient care and ensuring that every visit to the dental office is a positive experience.