Dr. Krystal Baldwin


  • Pediatric Dental Residency – Oishei Children’s Hospital
  • DDS – University of Buffalo School of Dental Medicine
  • BS, Biology – University College at Buffalo


  • American Academy of Pediatric Dentistry
  • Future Dental Mentorship Committee
  • American Academy for Developmental Medicine and Dentistry
  • Special Olympics
  • Student National Dental Association


Dr. Krystal Baldwin became a dentist because it brought together her love of art and science. She enjoys making patients feel comfortable, valued, and supported. Dr. Baldwin has won the Women Making History Outstanding Achievement Award and the Pediatric and Community Dentistry Award. She also volunteers with Say YES Saturday Academy, Team Smiles, Head Start Advisory Committee, and Medical Step Elite. She loves to read, sketch, cook, and go horseback riding in her free time!

Dr. Mohamed El Naga

Board Eligible Orthodontist


  • Residency in Orthodontics and Dentofacial Orthopedics – Georgia School of Orthodontics
  • MS – Operative Dentistry
  • Certificate of Advanced Graduate Study, Advanced Education General Dentistry Program
  • Bachelor’s in Dental Sciences – Cairo University


  • American Dental Association
  • American Association of Orthodontists
  • Southern Association of Orthodontics
  • Georgia Dental Association
  • Invisalign Fellowship Certification


Dr. Mohamed El Naga’s passion for orthodontics began when he was young. His older sister, an orthodontist in Egypt, inspired him to follow in her footsteps. He received his Bachelor’s in Dental Sciences from Cairo University and completed his residency in orthodontics and dentofacial orthopedics at the Georgia School of Orthodontics. He believes that the most rewarding part of being an orthodontist is leaving a lasting impact on his patients, giving them confidence and adding happiness to their lives. Outside of work, Dr. El Naga and his wife enjoy discovering new restaurants, watching movies and sports, and spending time with family and friends. He is also an extreme sports enthusiast, so you might find him bungee jumping, skydiving, or paragliding for fun.

Dr. Nicholas Tai

Board Eligible Pediatric Dentist


  • Chief Resident – Advanced Education Program in Pediatric Dentistry – New York University
  • DDS – New York University
  • BA, Biology – Binghamton University


  • American Dental Association
  • American Academy of Pediatric Dentistry


Dr. Nicholas Tai became a dentist because he gets to work with his hands, encounter unique challenges, and positively impact each patient’s life. He loves to work with kids because he gets to show off his silly side and tell bad jokes to see them laugh. Dr. Tai volunteers with Give Kids a Smile and the Special Olympics and coaches and referees in youth sports programs. Outside of the office, he enjoys going to local coffee shops and new restaurants with his wife, Maribeth.

Dr. Hina Khan

Pediatric Dentist-Diplomate of the American Board of Pediatric Dentistry 


  • Pediatric Dental Residency – LSU School of Dentistry- New Orleans, LA 
  • DDS- Texas A&M College of Dentistry– Dallas, TX
  • BA – Washington University –  St. Louis, MO

Professional Organizations/Awards

  • American Dental Association
  • Texas Academy of Pediatric Dentistry
  • Southwest Society of Pediatric Dentistry
  • Greater Dallas Pediatric Dental Society


Dr. Khan is a native Texan. She grew up in the Dallas/Ft. Worth metroplex and graduated from the Hockaday School in Dallas. She went on to receive her BA degree from Washington University in St. Louis.  Dr. Khan returned to Dallas to complete her Doctor of Dental Surgery from Texas A&M College of Dentistry Being a kid at heart, she then pursued her true passion of pediatric dentistry with her residency in LSU-New Orleans. Dr. Khan loves spending time with her patients, telling silly stories about superheroes and princesses as she helps keep their teeth cavity-free and sparkling bright! 

When Dr. Khan is not in the office, she is an avid globetrotter! She travels the globe, listening to her favorite 80’s music, to new and exciting places! Fill your life with adventures, not things. Have stories to tell, not stuff to show!

Dr. Cheryl Johnson


  • Specialty program – Advanced Education in General Dentistry – Air Force Medical Service – Travis Air Force Base
  • DDS- University of the Pacific – Stockton, CA
  • Undergrad – University of Nevada – Las Vegas, NV

Professional Associations/Awards

  • American Dental Association


Dr. Cheryl was drawn to the dental profession after working in a dental office as a dental assistant right after attending college. She and her husband, Dr. Ryan Max Johnson, who is also a dentist, met in dental school. They also went through the Air Force together. She and her husband, Ryan, have three kids. When Dr. Cheryl is not at the office. She and her husband love taking the kids outdoors; hiking, camping, and fishing. They love animals and, in fact, have a few in their home!

Dr. Mark Walsh


  • Pediatric Dental Residency – Harvard University, Boston Children’s Hospital
  • Doctor of Dental Medicine, Magna Cum Laude – Southern Illinois University, School of Dental Medicine
  • Bachelor of Science with Highest Honors – University of Illinois at Urbana – Champaign

Professional Associations/Awards

  • Nomination for “Best in Care Award” (Boston Children’s Hospital – 2019)
  • Chief Resident (Boston Children’s Hospital – 2018-2019)
  • Community Outreach & Volunteer Award (Delta Dental – 2017)
  • Odontographic Society Irwin B. Robinson Award, Chicago, IL (2015)
  • SIU-SDM Dean’s Research Fellowship (2014-2015)
  • Dental/Medical Mission Trip Tegucigalpa, Honduras
  • American Academy of Pediatric Dentistry
  • Texas Academy of Pediatric Dentistry
  • Texas Dental Association


Dr. Mark has family roots here in Texas, and while initially born in Illinois, he has always considered Texas his home and could not be more excited to be back in the Lone Star State.

With a longstanding commitment to pediatric and special needs dental care and his unique combination of professional and academic experiences, Dr. Mark has committed himself to providing the highest level of care in pediatric dentistry, while also maintaining a fun and supportive atmosphere that the entire family can enjoy. 

Dr. Walsh loves making others smile and values a good sense of humor during the dental visit. While he may have been a professional candy taste tester as a child, he has been trying to redeem himself ever since! Other than battling sugar bugs, his favorite pastimes are centered around health and wellness. In his free time, he enjoys exploring his home here in Tyler alongside outdoor adventures, whether it be through hiking, biking, or visiting National Parks.

Dr. Matthew Lettre


  • Pediatric Dental Residency- Children’s Hospital Colorado – Aurora, CO
  • DDS – Meharry Medical College – Nashville, TN
  • BS – Ecology and Evolutionary Biology – University of Tennessee – Knoxville, TN

Professional Associations/Awards

  • American Academy of Pediatric Dentistry
  • American Board of Pediatric Dentistry
  • American Dental Association


Dr. Matt was drawn to the dental profession because he feels it is the perfect combination of medicine and working with your hands. He often serves as a Rural Area Medical Volunteer, offering free dental and medical care to those in need. His favorite thing about working with kids is that they say the funniest things and always laugh at his jokes! Outside of dentistry, Dr. Matt loves woodworking, building computers, and running. He and his wife, Shreya, enjoy watching true crime documentaries together and spoiling their two pups.

Dr. Aaron Leavitt

While in the Navy he completed an AEGD residency to advance his training and skills. He is proud of his service to his country while deployed aboard the aircraft carrier, USS Nimitz. With 18 years of experience in dentistry, you can rest assured his patients are receiving exceptional care and treatment. He is trained in comprehensive dentistry, conscious sedation, and laser procedures.

Dr. Leavitt graduated from Brigham Young University and received his DMD from the University of Florida. He is a father of four and treats his patients with the same tenderness as he would his own. With a high-five and a smile, Dr. Leavitt enjoys making his patients feel special. 

In his spare time, he enjoys spending time with his family, actively serving in his church, and playing racquetball. 

Dr. Neidy Castro

“I love that I can help our patients achieve health, not only in a palpable way when they are in need of treatment but by education, which is life-altering.” – Dr. Neidy

Dr. Neidy Castro has been practicing dentistry for more than 17 years. She is a 2001 graduate of Baylor College of Dentistry. After dental school, Dr. Castro established her own successful dental practice in Irving, TX. In September of 2009, she sold her practice to concentrate on being a mother while practicing part-time with other DFW area dentists.

Dr. Neidy stays on top of the latest to help monitor the growth and development of all our patients in order to detect any variants from the ideal and work with health professional team members so patients can achieve optimal health.

In 2011, with her boys entering school full time, Dr. Castro joined iKids Pediatric Dentistry. Dr. Castro practices at iKids three days a week and the remaining time is devoted to her family. She enjoys traveling with her husband, spending time with her boys, being a soccer mom, and playing violin with her church orchestra. Dr. Castro is also fluent in Spanish and French.

Dr. Blane Hamilton

Dr. Blane Hamilton believes in providing every child with a great experience. He earned his DMD degree from Nova Southeastern University College of Dental Medicine and completed an additional two-year residency in pediatric dentistry at Temple University Hospital. 

Dr. Blane has advanced training in conscious sedation and special needs care. He’s a diplomate of the American Board of Pediatric Dentistry, a member of the ADA, and the American Academy of Pediatric Dentistry.

Dr. Blane lives in Mansfield with his wife, Sarah, and their four boys. He’s active in his church, loves spending time with his family, and enjoys coaching youth sports, riding his bike, playing various sports, and spending time outdoors.