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  • Our Practice
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  • Pediatric Dentistry
    • Restorative Dentistry
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Fremont (Downtown)
New Patients
call/text (510) 591-0144
call
text
Existing Patients
call (510) 791-0971
call
Fremont (Mission Hills)
New Patients
call/text (510) 405-7078
call
text
Existing Patients
call (510) 264-7199
call
San Leandro
New Patients
call/text (510) 890-0736
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text
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call (510) 890-3557
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Tracy
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Meet Our Doctors

Just Laughs, Just Smiles, Just Kids!

Friendly Faces Behind
Every Smile

Our dedicated dental experts are passionate about nurturing bright, healthy smiles, turning every visit into a joyful, family-friendly experience.

Dr. Jonathan Chang
DMD
Dr. Jeffrey Chang
DMD
Dr. Bryan Chao
DDS, MS
Dr. Steven Chan
DDS
Dr. Pooja Rattan
DDS, MS
Dr. Johanna Tan
DDS
Dr. Adrienne Nguyen
DDS
Dr. Shilpa Avula
DDS
Dr. Joanna Lee
DMD
Dr. Tarek Kassem
DDS
Dr. Remya Niranjan
DDS, MS
Meet Dr. Chang
Location: Downtown
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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Meet Dr. Chang
Location: San Leandro & Tracy
As a pediatric dentist, it’s my passion to help children build a foundation for a lifetime of great oral health. That journey begins by establishing a dental home during your child’s first visit. My hope is that Just Kids Pediatric Dentistry is a place where children feel comfortable, cared for, and even excited to visit.
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Meet Dr. Chao
Location: San Leandro & Tracy
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.
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Meet Dr. Chan
Location: Downtown
I’ve been thoroughly blessed throughout my 35-year career in dentistry. I’m honored by the trust parents place in me to be part of their children’s oral health journey. I’ve fondly watched those little ones grow up, and it’s incredibly rewarding when they return years later—now bringing their own children to see me.
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Meet Dr. Rattan
Location: Downtown
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.
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Meet Dr. Tan
Location: Downtown
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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Meet Dr. Nguyen
Location: Downtown
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.
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Meet Dr. Avula
Location: Mission Hills
Hi, I’m Dr. Avula. I grew up in the Central Valley of California and currently live in the Bay Area with my husband and our two young children. I knew from high school that I wanted to become a dentist. I completed both my undergraduate and dental education through an accelerated honors program at the University of the Pacific in just five years.
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Meet Dr. Lee
Location: Downtown & Mission Hills
Hi, I’m Dr. Joanna Lee. I was born and raised in Castro Valley, California, and have always enjoyed working with children. I’ve had the opportunity to travel abroad to Mexico and Honduras to serve on humanitarian trips, which helped shape my passion for pediatric care. I completed my undergraduate studies at the University of California San Diego and went on to earn my dental degree from Roseman University of Health Sciences College of Dental Medicine.
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Meet Dr. Kassem
Location: San Leandro & Tracy
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.
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Meet Dr. Niranjan
Location: Tracy
My goal is to make my patients feel at ease and to give them a positive, and memorable dental experience. My favorite part about being a pediatric dentist is making everlasting relationships with young children and having a positive impact on their lives.
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Dr. Janice Hwang
DDS,MS
Dr. Duy Bui
DDS,MS
Meet Dr. Hwang
Dr. Janice Hwang is native to the Bay Area. She spent her early childhood and teenage years as a cellist, competing in competitions all over the Bay Area. While she loved her experience as a classical musician, she eventually decided to use the dexterity that she developed for another artform—dentistry.
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Meet Dr. Bui
Dr. Bui is from Orange County in California and is excited to come to the Bay Area to practice orthodontics. His interest in orthodontics began when he had braces at the age of 15 and it has never waned since then. Dr. Bui is an avid fan of basketball and tennis. His favorite players are LeBron James and Roger Federer respectively.
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Dr. Philip Yen
DDS
Dr. Andrew Young
DDS
Meet Dr. Yen
Dr. Yen grew up in Northern California’s Bay Area, then traveled to Southern California for undergraduate studies. Dr. Yen graduated with a degree in Physiology from UCLA, then went across town to attend dental school at University of Southern California School of Dentistry. His anesthesia residency was completed at The Ohio State University.
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Meet Dr. Young
Dr. Young began his undergraduate studies in Biological Sciences at Drexel University in Philadelphia, Pennsylvania. He earned his doctorate at the Ostrow School of Dentistry of USC, before completing residency in Dental Anesthesiology at the University of Pittsburgh, School of Dental Medicine and the University of Pittsburgh Medical Center.
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Get Started On A Healthy Smile

Pediatric Exam
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Hear the Joy of Happy Smiles

Discover heartfelt testimonials from families who share how our gentle, 5-star care transforms routine visits into cherished moments of connection and confidence, celebrating every bright smile as a true success story.

Namrata G.
My daughter has pleasant experience every time .Very friendly staff and doctors pay attention to detail. They don’t push on any procedure unless there is a need l. I hope they continue same way. Happy to be going there !
Jenny
I want to give a big 5-star shoutout to Just Kids Pediatric Dentistry!

On June 27, my child had a fall and injured his teeth. Our family dentist recommended we visit a pediatric dental emergency clinic for further evaluation, so we went to Just Kids Pediatric Dentistry—and I’m so grateful we did.

From the moment we walked in, the front desk staff, Angela, showed genuine concern upon seeing my child’s swollen face. She quickly registered us, took photos, and immediately communicated everything to the doctor. Dr. Pooja Rattan responded without delay, asking us to stay in the office for a thorough examination.

I want to sincerely thank Dr. Rattan for her exceptional care. She was not only highly professional but also deeply empathetic. At the time of the injury, my child also had an acute sinus infection, and Dr. Rattan took the time to examine him carefully and rule out any complications. She was incredibly attentive, answered all of our questions patiently, and didn’t miss a single detail—no matter how small. Her dedication and integrity were remarkable. She is a truly angelic and noble dental professional, and we felt so lucky to have her care.

I also want to give a special shoutout to nurse Josie. Throughout the visit, she was calm, patient, and extremely supportive. She coordinated everything, comforted my child, and went above and beyond by organizing all the medical documents on the spot for future follow-up. Josie is one of the most compassionate and responsible medical professionals I’ve ever encountered. Her presence made a real difference!

Lastly, I’d like to recognize Angela and Jennie at the front desk. Angela was incredibly detailed and helpful during check-in, and Jennie later showed just as much kindness and care during a follow-up visit. Every person we interacted with—doctor, nurse, and front desk staff—deserves the highest praise.

These incredible individuals—Dr. Rattan, Josie, Angela, and Jennie—truly represent the best in pediatric dental care. Their compassion, professionalism, and dedication should absolutely be recognized. I genuinely hope Just Kids considers a well-deserved salary raise or rewards them for their outstanding service—they’ve more than earned it.

Honestly, Just Kids stands out because of its outstanding team. I hope the clinic recognizes their contributions and rewards them—they truly make a difference!

Thank you again to everyone at Just Kids Pediatric Dentistry. You’ve earned every bit of this 5-star review!

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Update:
I went to Just Kids Pediatric Dentistry yesterday, July 18th, to have my child’s damaged tooth extracted, and once again, I was deeply impressed by the care we received. I especially want to highlight Nurse Gali—she truly amazed me.

As always, Dr. Rattan was professional, friendly, and reassuring. She successfully and smoothly completed the extraction with great skill.

Gali was not only highly professional but also incredibly gentle and engaging with my child. She quickly won my child’s trust and kept the atmosphere light and comforting. She even customized a movie just for him to help him feel at ease! In addition to assisting with the extraction, she also performed two dental sealants and explained each step in a way my child could understand. She listened to him patiently, respected his thoughts, and handled every little detail with such care. Thanks to her, my child was much more cooperative than I expected.

Also, a shoutout to Andrew at the front desk—he was excellent and helpful throughout the visit.

Just Kids is incredibly fortunate to have such outstanding staff members. They absolutely deserve recognition—and I sincerely hope the clinic considers giving them a promotion or a raise. They’ve earned it through their dedication and exceptional care!
Megan B.
We had our first visit to Just Kids Pediatric Dentistry yesterday and absolutely loved it! My sons are 9 and 10 years old, so when they saw the old-school arcade games in the waiting room they were completely sold. All of the staff members were friendly. The dental assistants were especially great with the kids. Everyone made sure to ask me if I had any questions before moving on to the next thing. They also kept checking in with the boys to make sure they were comfortable. My kids were able to be seen together in the same room, and it only took about 20-25 minutes for X-rays, cleaning, and an exam with the dentist (who was also great with them). The boys loved laying back watching a movie on the ceiling tvs, and they got to choose prizes and balloon puppies, flowers, or swords. Very nice clean place that I obviously recommend.
Response from the owner:Thank you for your wonderful review, Megan! We're thrilled to hear that your sons enjoyed their visit and had fun with the arcade games. Our team is dedicated to providing a comfortable experience for every child. We appreciate your recommendation!
Kimberly L.
Absolutely loved how great they are with my little ones. I have a 6 year old and 4 year old. And my youngest is autistic. They did everything to make her comfortable, and honestly I couldn’t have dreamed of a better experience. Thank you so much !!
Response from the owner:Thank you, Kimberly, for your wonderful feedback! We are thrilled to hear that your children had a positive experience. Our team is dedicated to providing a comfortable and welcoming environment for all kids.
Jaraad M.
Took our 13 month old for her first checkup, dentist and staff were all super friendly and patient. Great office for children
Response from the owner:Thank you for your wonderful review, Jaraad! We're thrilled to hear that your child's first checkup was a positive experience. Our team is dedicated to creating a friendly and comfortable environment for all our young patients.
Armaan J.
Friendly staff,My son has done his braces done from here . He broke his bracket few times but doctor talked with him very calmly and told him to stay careful for all the time when you eat..good staff
I’m satisfied my son’s treatment. Thanks
Response from the owner:Thank you for your kind words, Armaan. We're thrilled to hear that your son is satisfied with his treatment. Our team is always here to support and guide our young patients. We appreciate your trust in us!
Nicole N.
The staff was so sweet and patient. It was my 18 month olds first dentist visit and they were exceptionally nice and understanding when he was less than cooperative 😅 absolutely recommend. He even left with a goodie bag, cute shirt, a balloon animal and a toy duck. He was thrilled the whole way home.
Response from the owner:Thank you for your wonderful review, Nicole! We're thrilled to hear that your child's first visit was a positive experience. Our team is dedicated to making dental visits enjoyable for little ones. We appreciate your recommendation!
Adriana M.
Thank you to Dr. Adrienne and her team for being so accommodating to us and our son Ezra for his first dentist appointment! They addressed all of our concerns and continued to show patience with Ezra throughout the appointment.
Response from the owner:Thank you, Adriana! We're thrilled to hear that Dr. Adrienne and the team made Ezra's first appointment a positive experience. Your kind words motivate us to continue providing exceptional care for all our young patients.
Jackie G
We love this dentist! They make the kiddos feel comfortable. The office is welcoming to the kids, they have games and books in the waiting area, and when exiting they kids get a coin to get a prize from their bending machines. The hygienist was very nice, the dentist already knew my questions when he walked into the office to check my daughter's teeth. They are awesome.⭐️⭐️⭐️⭐️⭐️
Response from the owner:Thank you, Jackie G! We’re thrilled to hear your children feel comfortable and enjoy their visits. Our team is dedicated to providing a fun environment and personalized care. We appreciate your kind words!
Ana M.
Dentist and staff are kid centered and friendly. All make the kids feel at ease.
Response from the owner:Thank you, Ana! We're thrilled to hear that our team made your kids feel comfortable and at ease. Your kind words motivate us to continue providing exceptional care. We look forward to seeing you again!
Karesa C.
we LOVE just kids! Dr Chao and Dr Chang are so kind and took great care of my daughter! the whole staff was also super helpful!
Response from the owner:Thank you for your wonderful review, Karesa! We're thrilled to hear that Dr. Chao, Dr. Chang, and our team provided such great care for your daughter. We appreciate your support!
Julie A.
Really love Liz! She is so good with my son, and just a really kind person!
Response from the owner:Thank you for your wonderful feedback! We're thrilled to hear that Liz has made such a positive impact on your son's experience. We appreciate your trust in us and look forward to seeing you both again!
Janelle R.
The doctors and staff at Pediatric Dentistry of Tracy are professional, personable and have been extremely kind and patient with my special needs son.
Response from the owner:Thank you, Janelle, for your kind words! We are thrilled to hear about your positive experience and appreciate your recognition of our team's dedication to providing compassionate care for your son.
Sunmin Y.
Today I visited Just Kids for my daughter's dental check-up. All nurses and staffs were super kind. Also, I could get good advices for the dental home care to my daughter. The animation shows from the ceiling and toys were kids friendly, so I could distract my daughter from crying.
Response from the owner:Thank you, Sunmin Yun, for your wonderful review! We're delighted that your daughter's first dental check-up was a positive experience filled with kindness and engaging distractions. We appreciate your feedback!
Lin L.
For the last couple of years we have been trying to find a pediatric dentistry for my son where he feels comfortable and finally found the right one! After our visit at Just Kids, my 10 year old said he wants to come back and see Dr. Bryan. I was surprise to hear him say that because Charlie does not like the dentist! I am glad he feels comfortable and told me that he wants to come back to this dental office!
Response from the owner:Thank you for your wonderful feedback! We're thrilled to hear that your son felt comfortable with Dr. Bryan. Our team is dedicated to creating a positive experience for every child. We look forward to seeing you both again!
More reviews

Discover heartfelt testimonials from families who share how our gentle, 5-star care transforms routine visits into cherished moments of connection and confidence, celebrating every bright smile as a true success story.

More reviews

We’re Close to Home

Every visit feels like coming home, as you enjoy kid-friendly waiting areas, quick access, and the warm embrace of a community-centered space designed to make your experience as effortless and joyful as possible.

Fremont (Downtown)
  • 3775 Beacon Ave #100
    Fremont, CA 94538
  • (510) 591-0144
Fremont (Mission Hills)
  • 39560 Stevenson Pl #118
    Fremont, CA 94539
  • (510) 405-7078
San Leandro
  • 433 Estudillo Ave STE 105
    San Leandro, CA 94577
  • (510) 890-0736
Tracy
  • 2160 W Grant Line Rd STE 150
    Tracy, CA 95377
  • (510) 738-3514
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Fremont (Downtown)
New Patients
call/text (510) 591-0144
call
text
Existing Patients
call (510) 791-0971
call
Fremont (Mission Hills)
New Patients
call/text (510) 405-7078
call
text
Existing Patients
call (510) 264-7199
call
San Leandro
New Patients
call/text (510) 890-0736
call
text
Existing Patients
call (510) 890-3557
call
Tracy
New Patients
call/text (510) 738-3514
call
text
Existing Patients
call (209) 832-7906
call
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(Only at Fremont Downtown, San Leandro, and Tracy)
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