Meet the Team

Clinical Director

Robert Grunstein, DMD

The founder of Smile Central Dental, Dr. Grunstein — or Dr. G as he is affectionately called by his patients — was formally trained at Temple University Kornberg School of Dentistry and graduated in 2001. Upon graduation, Dr. Grunstein began his career working in Paterson at a busy inner-city dental clinic where he recognized an acute need for greater access to affordable dental services in the community.

Dr. Grunstein spends much of his time educating the community and policymakers on the importance of dental care for all children. He has been recognized with many prestigious awards for his innovative approach to dentistry by pioneering the concept of the Cavity Fighter truck, a mobile dental operatory. Dr. Grunstein is the recipient of the Richard Tannis Youth Service Award for his work in promoting children’s dental health in New Jersey.

In addition, he has served on the Mayoral Task Force Committee to promote further wellness in Paterson. He has also been recognized by Healthy Mothers, Healthy Babies, New Jersey Horizon Healthcare, Yeshiva University, and the State of New Jersey General Assembly for his work. He has been lauded in many publications, including The New York Times, Bergen Record, and the Star-Ledger for his commitment to dental health outreach.

Dr. Grunstein works tirelessly to raise awareness of access to dental healthcare for children and the importance of preventive dental health. When he is not working on children’s dental health, Dr. Grunstein is at home, playing with his own three children and his two Labradoodles Snickers and Mack. He also enjoys camping and working on his Jeep.

Dr. G’s Favorites:

Superhero: Tarzan
Movie: “Meet the Robinsons”
Food: Fried chicken and fries

Jonathan Noll, DMD

Dr. Noll grew up in Clifton, New Jersey and attended Rutgers School of Dental Medicine. He loves science and it is one of the reasons he became a dentist. His favorite part of his job is working with children and making a difference in the community.

In his free time, Dr. Noll loves to read. His favorite book is Something Wicked This Way Comes.

Dr. Noll's Favorites:

Disney Character: Scrooge McDuck
Superhero: Starman
Food: Pierogies

Ghada Mubarez, DDS

Dr. Mubarez grew up in New York City and attended NYU. She describes herself as an artist and says that she became a dentist because dentistry combines art and medicine. She loves working with children which is her favorite part of her job.

In her free time, Dr. Mubarez loves taking walks in the parks and LOVES amusement parks.

Dr. Mubarez's Favorites:

Disney Character: Mulan (because she's tough!)
Book: Fire Starter
Food: Junk! French fries and burgers

Jonathan Sipzner, DMD

Dr. Jonathan Sipzner grew up in West Orange, New Jersey. He attended the University of Medicine and Dentistry of New Jersey. He works hard every day to make all the young patients he sees a smile when they leave the office.

At home, Dr. Sipzner enjoys singing, snowboarding, and playing with his dog Snickers.