Our Team


Dr. David Bishop owner/dentist for The Dentist of Allen has been “the Dentist” since 1983, his dental practice is known worldwide as The Castle in Allen, TX. The legacy of exceptional care Dr. Bishop and his team have provided to families for decades is excited to now offer specialized dental care for infants, toddlers, adolescents, special need children, and teens.

In addition to Dr. John and Dr. Bishop we also have Dr. Kim who specializes in general dental care with an emphasis on Dental Restorations and Cosmetic Dentistry and Dr. Koelker who specializes in Dental Implants, Sedation Dentistry and Wisdom Teeth removal. We want to provide every dental service your family might need under one roof!

Dr. John

Pediatric Dentist in Allen, Texas

Dr. John is our practicing pediatric dentist. Dr. John had specialized training to work with children participating in an intense Pediatric Dental Residency program for 2 years, she focuses on making sure children have the most comfortable visit possible at the Dentist. Dr. John has been a dentist since 2006 and decided in 2014 her calling was to work with children; she  specialized in Pediatric Dentistry and received her certificate as Pediatric Dental Specialist from Rutgers School of Dental Medicine in New Jersey.

Dr. John is a member of the American Association of Pediatric Dentistry, the American Association of Public Health Dentistry, and the American Association of Public Health.

We are so pleased to have her here to assist with the community dental care we provide. Her home and family are in Collin County and this area of Texas is her favorite, when not taking care of patients she enjoys baking cakes, playing with her toddler and learning hip hop dancing.

Dr. John understands the dental needs for your child and is here to help create the best possible Dental Home so they have a foundation for a lifelong love of Dental Health.


  • Best Poster Presentation: Balbo Research Day -2016

  • People’s Choice Award: OPHA 2015

  • Best Graduate Student: MPH – OPHA 2014

  • Best Graduate Student Award, Case Western Reserve University – 2014


Dr. Marshall


Dr. Marshall is a board certified pediatric dentist who graduated from UNC School of Dentistry in Chapel Hill, North Carolina in 2009. She continued her advanced clinical education in the General Practice Residency program at Bronx Lebanon Hospital in New York in 2010 and received her Dental Residency Certificate from Temple University Hospital in Philadelphia, PA in 2016!

We are thrilled for what Dr. Marshall’s specialized skills will add to our team of amazing doctors at the castle including oral sedation, performing pulp therapy using MTA, hospital dentistry, outpatient Surgi-Center dentistry, serving special needs patients, cosmetic dentistry, full mouth rehabilitation including cross-bite corrections on pediatric patients, and restorative laser dentistry. It doesn’t hurt that patients LOVE her!


Copy of Copy of Copy of Untitled (4).png


Our director of Pediatric Dentistry is here to answer any of your questions!

Amie has been in pediatrics for over 7 years and loves to help our younger patients have the best experience possible so they have a life long love for dental health and a great relationship with their dentist.


Veronica is our Dental Assistant Team Leader and is a Registered Dental Assistant. Veronica received her Dental Assisting education with a minor in Biology from the Texas A&M University-Kingsville Dental Assisting Program in 1999. Veronica has been with the Dentist of Allen since 2005 and is excited to work with Dr. John our new Pediatric Dentist. 

Veronica had her first baby, a little boy last fall and she is so in love with being a new mom.  Caring for children's dental needs and helping them have an awesome experience is her main priority.

Veronica is bilingual and is very helpful in guiding our Spanish speaking patients through their dental treatment needs. Her hobbies include running 5K and marathons as well as spending time with family and friends.

Copy of Copy of Copy of Untitled (4).png

Learn more about our general family practice at: