Meet Our Doctors

Expert, Kid-Friendly Dentists Specially Trained to Care for Your Child

We Are Here For You!

Gateway Little Smiles specializes in dentistry for children. We take great pride in serving our young patients with the friendly care they deserve. Our team is dedicated to your child’s long-term health and well-being, and we are influential in the field of pediatric dentistry. Our focus is eliminating fear, promoting learning, and helping children recognize the value of maintaining excellent oral health. We are enthusiastic and kind, and our approach to care boosts excitement, eagerness, and a true desire to brush, floss, and keep their pearly whites healthy for many years to come.

Dr. Corey Hastings

Locations:

Collinsville, St. Peters, Ballwin

I am passionate about dentistry for children and helping them reap the benefits of healthy teeth and a great-looking smile for life! If there’s one thing I hope to accomplish in my career, it’s helping all of my young patients learn to love visiting the dentist. There’s absolutely no reason a dental appointment should be intimidating. It’s my job to help children learn and understand the real benefits of excellent oral health!

Dr. Zaynab Hussam

Locations:

St. Peters and Ballwin

I became a pediatric dentist because I love helping kids feel safe, happy, and confident when they visit the dentist. My family actually inspired me to choose this career—every one of my siblings is a dentist! I earned my degree in Biological Sciences at the University of Missouri, went to dental school at UMKC, and completed my pediatric dental residency at UNMC in Nebraska. Before residency, I worked in public health, where I launched a fund through the Nebraska Foundation to help kids get the dental care they need.

Dr. James Lee

Location:

St. Peters

I became a pediatric dentist because I love helping kids feel comfortable and confident at the dentist. Those early visits are so important, and I want every child to leave with a big smile and healthy habits that can last a lifetime. My approach is simple—lots of patience, plenty of praise, and maybe even a few laughs along the way.

Dr. Conrad Parks

Location:

Collinsville

I’ve been a pediatric dentist for over 10 years and love helping kids feel comfortable and confident at the dentist. Before joining Blue Sage, I owned a private practice in Kansas, taught at Children’s Mercy Hospital in Kansas City, and spent the last four years practicing in the St. Louis metro area. I’m also a board-certified diplomate with the American Board of Pediatric Dentistry.

Dr. Yasu Yamazaki

Location:

St. Peters and Ballwin

Before becoming a pediatric dentist, I earned degrees in Mechanical and Automotive Engineering and spent 8 years working as a general dentist. Along the way, I discovered that kids were my favorite patients—their curiosity, creativity, and endless questions make every day an adventure! Adults usually sit quietly in the chair. Kids, on the other hand, tell me about their pet goldfish, ask if I live at the dental office, and occasionally negotiate tooth-brushing terms like experienced lawyers. So I decided to specialize in pediatric dentistry—and I’ve never looked back!

Dr. Mary Arrieta

Location:

St. Peters and Ballwin

I am deeply passionate about pediatric dentistry and helping children achieve healthy, beautiful smiles for life! My own childhood experiences with transformative dental care inspired me to pursue this path, earning my first dental degree in Venezuela, later a second dental degree from the University of Colorado, and finally my pediatric dental specialty from the University of Toledo. For the past ten years, my mission has been providing compassionate care to pediatric patients from underserved communities.

Turning 1? Time to come!

Kids who visit the dentist early grow up with healthier habits and feel more comfortable with their dentist! If your child has celebrated their first birthday, they’re ready for a visit to Gateway Little Smiles!

We Have Three Convenient Locations!

At Gateway Little Smiles, the office amenities include TVs with streaming services, headphones for a personal experience, a variety of toys for fun breaks, a gumball machine with exciting prizes, and thoughtful goodie bags to make every day a little brighter.

We Love Our Patients!

    
 
 
       Posted on Google  
    Jimmy Wilson 
 
 
 
 Trustindex verifies that the original source of the review is Google. Dr. Ashley and Ms. Teressa had me and my two kids in & out, with a quick but comprehensive appointment. Thank you!
  
 
      Posted on Google  
    Chelsea Brown 
 
 
 
 Trustindex verifies that the original source of the review is Google. There so amazing
  
 
      Posted on Google  
    AFineMess 
 
 
 
 Trustindex verifies that the original source of the review is Google. More than happy with all staff! They go above and beyond every day, and it shows!
  
 
      Posted on Google  
    Randy Reitz 
 
 
 
 Trustindex verifies that the original source of the review is Google. Took my grandkids to this office today and was totally impressed with the service.  Teressa, Zoe and Dr. Ashley were all kind, attentive and informative of their needs. It was a great experience.
  
 
      Posted on Google  
    Alexandra Hurtado 
 
 
 
 Trustindex verifies that the original source of the review is Google. My daughter’s first dental appointment and we both had a great experience! Zoe was SO kind and made the experience less scary for my daughter and Dr. Culver was very knowledgeable and gentle with her as well! The entire office staff was really nice and welcoming. Definitely recommend for your little ones :)
  
 
      Posted on Google  
    Grelissa Baker 
 
 
 
 Trustindex verifies that the original source of the review is Google. I love Gateway Little Smiles. Dr. Ashley was very patient, fun and personable.
  
 
      Posted on Google  
    Kyesha Wilson 
 
 
 
 Trustindex verifies that the original source of the review is Google. I gave this place of business a 5 star because they are pretty awesome! However what i experienced today was a bit confusing. I took my 7 yr old for tooth extraction (first time ever getting a tooth pulled) when they came out to get him I was instructed to stay in waiting area..I proceed to ask why and was told “we try to do things without the parent “ now if you’re teaching independence I get it but, explain that to the parent and give them that option still . Mind you there were 3 parents after me that went back with their children , My son went back without me and ended up soiling himself which has never happened (he’s 7). I was not pleased, he told me beforehand that he was scared. Will I still recommend this place? Absolutely! But I will be verbal next time about going back with my son. I do want to mention I spoke to the front desk about it and she offered for me to go back but my attitude wasn’t in the right place. I believe if I went back with him he would have never peed himself.
  
 
      Posted on Google  
    Nicole Picotte 
 
 
 
 Trustindex verifies that the original source of the review is Google. They are so great with kids! Even when my daughter was scared they made her feel better!
  
 
      Posted on Google  
    Reva Reeder 
 
 
 
 Trustindex verifies that the original source of the review is Google. We absolutely love going here!

Jimmy Wilson

Dr. Ashley and Ms. Teressa had me and my two kids in & out, with a quick but comprehensive appointment. Thank you!

Chelsea Brown

There so amazing

AFineMess

More than happy with all staff! They go above and beyond every day, and it shows!

Randy Reitz

Took my grandkids to this office today and was totally impressed with the service. Teressa, Zoe and Dr. Ashley were all kind, attentive and informative of their needs. It was a great experience.

Alexandra Hurtado

My daughter’s first dental appointment and we both had a great experience! Zoe was SO kind and made the experience less scary for my daughter and Dr. Culver was very knowledgeable and gentle with her as well! The entire office staff was really nice and welcoming. Definitely recommend for your little ones :)

Grelissa Baker

I love Gateway Little Smiles. Dr. Ashley was very patient, fun and personable.

Kyesha Wilson

I gave this place of business a 5 star because they are pretty awesome! However what i experienced today was a bit confusing. I took my 7 yr old for tooth extraction (first time ever getting a tooth pulled) when they came out to get him I was instructed to stay in waiting area..I proceed to ask why and was told “we try to do things without the parent “ now if you’re teaching independence I get it but, explain that to the parent and give them that option still . Mind you there were 3 parents after me that went back with their children , My son went back without me and ended up soiling himself which has never happened (he’s 7). I was not pleased, he told me beforehand that he was scared. Will I still recommend this place? Absolutely! But I will be verbal next time about going back with my son. I do want to mention I spoke to the front desk about it and she offered for me to go back but my attitude wasn’t in the right place. I believe if I went back with him he would have never peed himself.

Nicole Picotte

They are so great with kids! Even when my daughter was scared they made her feel better!

Reva Reeder

We absolutely love going here!

Meet Our Doctors

Expert, Kid-Friendly Dentists Specially Trained to Care for Your Child

We Are Here For You!

Dr. Corey Hastings

Dr. Zaynab Hussam

Dr. James Lee

Dr. Conrad Parks

Dr. Yasu Yamazaki

Dr. Mary Arrieta

Turning 1? Time to come!

We Have Three Convenient Locations!

At Gateway Little Smiles, the office amenities include TVs with streaming services, headphones for a personal experience, a variety of toys for fun breaks, a gumball machine with exciting prizes, and thoughtful goodie bags to make every day a little brighter.

Collinsville, IL

St. Peters, MO

Ballwin, MO

We Love Our Patients!

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