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Meet Our Pediatric Dentists

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Jonathan chang, DMD


I grew up here in the Bay Area, attended college at UC Davis, and went on to obtain my Doctor of Dental Medicine degree at Temple University in Philadelphia, Pennsylvania. It was in the city of brotherly love where my passion to work with children was born and I went on to specialize in Pediatric Dentistry at UCLA. 

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Pooja rattan, dds


As a board-certified Diplomate of the American Academy of Pediatric Dentistry, I am trained to provide your child with truly excellent dental care. As a mother, I am sincerely committed to giving your child the positive experience that I would wish upon my own children. 

Jeffrey chang, dmd

Fremont & San Leandro 

As a pediatric dentist, it has been his passion to help children cultivate a lifetime of great oral health. This begins by establishing a dental home during your child’s first visit. His hope is that Just Kids Pediatric Dentistry is a place that children can feel comfortable and enjoy visiting. 

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San Leandro 

As a native of Fremont and former patient of Just Kids Pediatric Dentistry, I am so excited to now be a part of the JKPD team! I understand the importance of giving your kids the very best and will strive to make each visit a happy, fun, and positive experience.



As a lifelong resident of the Bay Area, I am thrilled to come back to Fremont to provide the best care here at JKPD! l will treat your children like my own, and will do all I can so they can have positive dental experiences and healthy smiles. I strive to make every visit comfortable and fun for both you and your child. 

JOhanna Tan, DDS


I am beyond excited to be joining Just Kids Pediatric Dentistry where the Bay Area Sports teams are loved and where your kids are in excellent hands! My name is Dr. Johanna Tan and I was born and raised in San Francisco, CA. 

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Tarek Kassem, DDS

San Leandro

I am thrilled to join the Just Kids Pediatric Dentistry team and honored to be entrusted with your child’s oral health. I was born and raised in Southern California and am incredibly excited to call the Bay Area my new home.

Joseph Yun, DDS

Fremont  & San Leandro

As a product of the PAC-12, I'm proud to call the Bay Area my home! I grew up in the sunny skies of Queen Creek, Arizona and attended Barrett, the Honors College at Arizona State University, where I studied Molecular Biosciences and Biotechnology.

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Steven chan, dds


We’ve been thoroughly blessed in my 35 year career in dentistry. We’ve been complimented by parents who allow us to share their babies’ experience with oral health. We’ve fondly watched our babies grow up. We’re flattered when those babies – now bring their babies – back to us. 

Ready to Schedule an appointmenT?
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