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Meet Our Dental Team

Our pediatric dental specialists attend two additional years of training after dental school to focus on how to provide the best care optimized for children. We are passionate about giving your child a healthier, happier smile.





Our Team

Marina Clah

Orthodontic Dental Assistant

I have been an Orthodontic and Pediatric assistant for a little over two years now. I enjoy both of the specialties equal haha! 

I love dentistry because oral health is important and good hygiene truly does make a difference in your overall health.

I moved to Phoenix 4 years ago and I am originally from the Nevajo reservation. I have a baby named Amelia who is 5 months old! My hobbies are hiking, running and spending time with my little family! 

Fun fact about me is my favorite National Park is Zion! 

Marc Contreras

Front Office

Hello, my name is Marc and I have over 10 years experience in retail and food industries but recently switched to start a new adventure in to dental care! I have three amazing pups named Banshee, Belami & Bruno who keep me busy and motivate me to stay positive!

I love to hike, travel to National Parks, and have pool days with my pups, friends & family.

In my spare time I like to edit videos and photos but nothing brings me greater joy than lending a helping hand wherever I can!

Jack Hackmyer

Josh Hackmyer

Dental Assistant

Hi Everyone! My name is Josh Hackmyer. This is my first year working in Dentistry and I love every second! 

I moved to Arizona in 2014 and I recently graduated from the University of Arizona where I majored in Public Health and played lacrosse for 4 years.

Outside of dentistry, I love going to Diamondback baseball games, music, working out, and spending time with friends/family. 

I will be applying to dental school this summer and I cannot wait to become a professional and serve others!

Jessica Lucero

Jessica Lucero

Ortho Assistant

I have been in the dental field for 8 years and have been doing ortho for 7 years. I am originally from Albuquerque, NM. 

I love spending time with my family and exploring new places. My hobbies are my plants, art, and I enjoy hiking with my family. 

I am passionate about Orthodontics because I love watching the confidence build in my patients as their teeth get straighter throughout their treatments. 

A fun fact about me is that I love thrift shops.

Kieara Miller

Kieara Miller

EFDA, Back Office Clinical Manager

Even though my name is Kieara, people around here call me “Kiki!”

I have been a Pediatric dental assistant for 11 years, and 10 of those years I have been chair side with Dr. Bienstock. I have been an ortho assistant for 5 years.

I am originally from California. I am left handed, but in dentistry, I do everything right handed, so I am ambidextrous!

In my free time, I love playing volleyball, roller skating, going to the gym and spending time with my family.

I have two puppies named Ace and Lola who I love to play with!

Dora Muminjoniyan

Dental Assistant

Hi everyone, I’m Dora! 

After completing dental school in 2020 and working as a dentist in Poland for a few years. I decided to pursue my career abroad.

Drawn by the warm climate and vibrant culture of Arizona I made the bold decision to relocate to Phoenix. I embraced the opportunity to join The Kids Dental Office of Phoenix and Orthodontics as a dental assistant.

Outside of dentistry I enjoy exploring Arizona’s natural beauty, from hiking trails in Sedona to the picturesque landscapes of the Grand Canyon. I am fluent in Polish, Russian, Turkish, Tajik and English, allowing me to connect effortlessly with people from various backgrounds and ensure they receive personalized care. 

I look forward to continuing my journey in pediatric dental care in Phoenix, where every day brings new opportunities to learn, grow, and positively impact the oral health and well-being of our community.

Ariel Roberts

Director of Special Projects

Ariel Roberts, our Director of Special Projects, is a native to Phoenix. She has three young girls, twins Vivi and Zuzu, and Rooney. She loves to spend her time outside of work gardening and flower arranging, travelling with her husband, learning Italian, trying new restaurants, and playing with her girls.

erica pic

Erica Rankin

Operations Manager

Hello! My name is Erica. I have been in dentistry since 1997. I have worked in all areas of dental. I started as an Oral Surgery Assistant. I am passionate about dentistry and helping patients love to smile, and oral health is very important to me.

I am originally from Chicago, Illinois, and have lived in Arizona for 13 years now. My husband Matt is originally from Arizona. In our spare time we enjoy Nascar, and checking out escape rooms and haunted houses with our friends. And fun fact… I am a huge Disney fan!

We have 2 wonderful pets, our dog Coco who we rescued in 2020, and our kitten Chase who we found alone outside. They are both living their best lives now.

Melanie Stewart

Melanie Stewart​

Chief Operating Officer

Welcome to our practice where we are dedicated to providing an exceptional experience for your children’s dental needs. Healthy and happy smiles are our priority!

Having worked in the dental field of many communities in Arizona for over 20 years, I remain rewarded and passionate about serving you!

Outside of dentistry, I enjoy cooking, reading, writing, and of course, a good sporting event with friends and family.